id	sid	tid	token	lemma	pos
ajst-28818	1	1	academic	academic	ADJ
ajst-28818	1	2	journal	journal	NOUN
ajst-28818	1	3	of	of	ADP
ajst-28818	1	4	science	science	NOUN
ajst-28818	1	5	and	and	CCONJ
ajst-28818	1	6	technology	technology	NOUN
ajst-28818	1	7	issn	issn	NOUN
ajst-28818	1	8	:	:	PUNCT
ajst-28818	1	9	2771	2771	NUM
ajst-28818	1	10	-	-	SYM
ajst-28818	1	11	3032	3032	NUM
ajst-28818	1	12	|	|	NOUN
ajst-28818	1	13	vol	vol	NOUN
ajst-28818	1	14	.	.	PROPN
ajst-28818	1	15	13	13	NUM
ajst-28818	1	16	,	,	PUNCT
ajst-28818	1	17	no	no	INTJ
ajst-28818	1	18	.	.	NOUN
ajst-28818	1	19	3	3	NUM
ajst-28818	1	20	,	,	PUNCT
ajst-28818	1	21	2024	2024	NUM
ajst-28818	1	22	281	281	NUM
ajst-28818	1	23	nonlinear	nonlinear	ADJ
ajst-28818	1	24	dynamic	dynamic	ADJ
ajst-28818	1	25	response	response	NOUN
ajst-28818	1	26	characteristics	characteristic	NOUN
ajst-28818	1	27	of	of	ADP
ajst-28818	1	28	deep‐	deep‐	NOUN
ajst-28818	1	29	water	water	NOUN
ajst-28818	1	30	riserless	riserless	NOUN
ajst-28818	1	31	drilling‐string	drilling‐stre	VERB
ajst-28818	1	32	system	system	NOUN
ajst-28818	1	33	under	under	ADP
ajst-28818	1	34	combined	combined	ADJ
ajst-28818	1	35	excitation	excitation	NOUN
ajst-28818	1	36	of	of	ADP
ajst-28818	1	37	platform	platform	NOUN
ajst-28818	1	38	motion	motion	NOUN
ajst-28818	1	39	and	and	CCONJ
ajst-28818	1	40	current	current	ADJ
ajst-28818	1	41	yi	yi	PROPN
ajst-28818	1	42	zhang1	zhang1	PROPN
ajst-28818	1	43	,	,	PUNCT
ajst-28818	1	44	jun	jun	PROPN
ajst-28818	1	45	liu1	liu1	PROPN
ajst-28818	1	46	,	,	PUNCT
ajst-28818	1	47	2	2	NUM
ajst-28818	1	48	,	,	PUNCT
ajst-28818	1	49	*	*	PROPN
ajst-28818	1	50	,	,	PUNCT
ajst-28818	1	51	shuang	shuang	PROPN
ajst-28818	1	52	liang1	liang1	PROPN
ajst-28818	1	53	,	,	PUNCT
ajst-28818	1	54	lin	lin	PROPN
ajst-28818	1	55	chen1	chen1	PROPN
ajst-28818	1	56	,	,	PUNCT
ajst-28818	1	57	yili	yili	NOUN
ajst-28818	1	58	chen1	chen1	NOUN
ajst-28818	2	1	1school	1school	NUM
ajst-28818	2	2	of	of	ADP
ajst-28818	2	3	mechatronic	mechatronic	ADJ
ajst-28818	2	4	engineering	engineering	NOUN
ajst-28818	2	5	,	,	PUNCT
ajst-28818	2	6	southwest	southwest	ADJ
ajst-28818	2	7	petroleum	petroleum	PROPN
ajst-28818	2	8	university	university	PROPN
ajst-28818	2	9	,	,	PUNCT
ajst-28818	2	10	chengdu	chengdu	PROPN
ajst-28818	2	11	,	,	PUNCT
ajst-28818	2	12	610500	610500	NUM
ajst-28818	2	13	,	,	PUNCT
ajst-28818	3	1	china	china	PROPN
ajst-28818	3	2	2school	2school	NUM
ajst-28818	3	3	of	of	ADP
ajst-28818	3	4	mechanical	mechanical	ADJ
ajst-28818	3	5	engineering	engineering	NOUN
ajst-28818	3	6	,	,	PUNCT
ajst-28818	3	7	chengdu	chengdu	PROPN
ajst-28818	3	8	university	university	PROPN
ajst-28818	3	9	,	,	PUNCT
ajst-28818	3	10	chengdu	chengdu	PROPN
ajst-28818	3	11	,	,	PUNCT
ajst-28818	3	12	610106	610106	NUM
ajst-28818	3	13	,	,	PUNCT
ajst-28818	3	14	china	china	PROPN
ajst-28818	3	15	*	*	PUNCT
ajst-28818	3	16	corresponding	correspond	VERB
ajst-28818	3	17	author	author	NOUN
ajst-28818	3	18	,	,	PUNCT
ajst-28818	3	19	jun	jun	PROPN
ajst-28818	3	20	liu	liu	PROPN
ajst-28818	3	21	abstract	abstract	PROPN
ajst-28818	3	22	:	:	PUNCT
ajst-28818	3	23	the	the	DET
ajst-28818	3	24	study	study	NOUN
ajst-28818	3	25	develops	develop	VERB
ajst-28818	3	26	a	a	DET
ajst-28818	3	27	model	model	NOUN
ajst-28818	3	28	for	for	ADP
ajst-28818	3	29	axial	axial	ADJ
ajst-28818	3	30	-	-	PUNCT
ajst-28818	3	31	lateral	lateral	ADJ
ajst-28818	3	32	-	-	PUNCT
ajst-28818	3	33	torsional	torsional	NOUN
ajst-28818	3	34	(	(	PUNCT
ajst-28818	3	35	alt	alt	ADJ
ajst-28818	3	36	)	)	PUNCT
ajst-28818	3	37	bidirectional	bidirectional	NOUN
ajst-28818	3	38	coupling	coupling	NOUN
ajst-28818	3	39	nonlinear	nonlinear	ADJ
ajst-28818	3	40	vibrations	vibration	NOUN
ajst-28818	3	41	in	in	ADP
ajst-28818	3	42	riserless	riserless	NOUN
ajst-28818	3	43	drill	drill	NOUN
ajst-28818	3	44	-	-	PUNCT
ajst-28818	3	45	strings	string	NOUN
ajst-28818	3	46	,	,	PUNCT
ajst-28818	3	47	using	use	VERB
ajst-28818	3	48	energy	energy	NOUN
ajst-28818	3	49	and	and	CCONJ
ajst-28818	3	50	finite	finite	ADJ
ajst-28818	3	51	element	element	NOUN
ajst-28818	3	52	methods	method	NOUN
ajst-28818	3	53	.	.	PUNCT
ajst-28818	4	1	the	the	DET
ajst-28818	4	2	model	model	NOUN
ajst-28818	4	3	incorporates	incorporate	VERB
ajst-28818	4	4	environmental	environmental	ADJ
ajst-28818	4	5	factors	factor	NOUN
ajst-28818	4	6	such	such	ADJ
ajst-28818	4	7	as	as	ADP
ajst-28818	4	8	platform	platform	NOUN
ajst-28818	4	9	motion	motion	NOUN
ajst-28818	4	10	,	,	PUNCT
ajst-28818	4	11	sea	sea	NOUN
ajst-28818	4	12	currents	current	NOUN
ajst-28818	4	13	,	,	PUNCT
ajst-28818	4	14	and	and	CCONJ
ajst-28818	4	15	wave	wave	NOUN
ajst-28818	4	16	loads	load	NOUN
ajst-28818	4	17	,	,	PUNCT
ajst-28818	4	18	as	as	ADV
ajst-28818	4	19	well	well	ADV
ajst-28818	4	20	as	as	ADP
ajst-28818	4	21	operational	operational	ADJ
ajst-28818	4	22	interactions	interaction	NOUN
ajst-28818	4	23	including	include	VERB
ajst-28818	4	24	wellbore	wellbore	NOUN
ajst-28818	4	25	contact	contact	NOUN
ajst-28818	4	26	and	and	CCONJ
ajst-28818	4	27	the	the	DET
ajst-28818	4	28	drill	drill	NOUN
ajst-28818	4	29	-	-	PUNCT
ajst-28818	4	30	rock	rock	NOUN
ajst-28818	4	31	interface	interface	NOUN
ajst-28818	4	32	.	.	PUNCT
ajst-28818	5	1	validated	validate	VERB
ajst-28818	5	2	with	with	ADP
ajst-28818	5	3	field	field	NOUN
ajst-28818	5	4	test	test	NOUN
ajst-28818	5	5	results	result	NOUN
ajst-28818	5	6	and	and	CCONJ
ajst-28818	5	7	data	datum	NOUN
ajst-28818	5	8	from	from	ADP
ajst-28818	5	9	four	four	NUM
ajst-28818	5	10	wells	well	NOUN
ajst-28818	5	11	in	in	ADP
ajst-28818	5	12	the	the	DET
ajst-28818	5	13	south	south	PROPN
ajst-28818	5	14	china	china	PROPN
ajst-28818	5	15	sea	sea	PROPN
ajst-28818	5	16	,	,	PUNCT
ajst-28818	5	17	the	the	DET
ajst-28818	5	18	findings	finding	NOUN
ajst-28818	5	19	emphasize	emphasize	VERB
ajst-28818	5	20	the	the	DET
ajst-28818	5	21	importance	importance	NOUN
ajst-28818	5	22	of	of	ADP
ajst-28818	5	23	heave	heave	PROPN
ajst-28818	5	24	compensation	compensation	NOUN
ajst-28818	5	25	devices	device	NOUN
ajst-28818	5	26	in	in	ADP
ajst-28818	5	27	offsetting	offset	VERB
ajst-28818	5	28	the	the	DET
ajst-28818	5	29	effects	effect	NOUN
ajst-28818	5	30	of	of	ADP
ajst-28818	5	31	sea	sea	NOUN
ajst-28818	5	32	motions	motion	NOUN
ajst-28818	5	33	on	on	ADP
ajst-28818	5	34	drilling	drilling	NOUN
ajst-28818	5	35	operations	operation	NOUN
ajst-28818	5	36	.	.	PUNCT
ajst-28818	6	1	the	the	DET
ajst-28818	6	2	analyses	analysis	NOUN
ajst-28818	6	3	indicate	indicate	VERB
ajst-28818	6	4	that	that	SCONJ
ajst-28818	6	5	the	the	DET
ajst-28818	6	6	weight	weight	NOUN
ajst-28818	6	7	on	on	ADP
ajst-28818	6	8	bit	bit	NOUN
ajst-28818	6	9	is	be	AUX
ajst-28818	6	10	mainly	mainly	ADV
ajst-28818	6	11	impacted	impact	VERB
ajst-28818	6	12	by	by	ADP
ajst-28818	6	13	heave	heave	NOUN
ajst-28818	6	14	movements	movement	NOUN
ajst-28818	6	15	;	;	PUNCT
ajst-28818	6	16	however	however	ADV
ajst-28818	6	17	,	,	PUNCT
ajst-28818	6	18	slow	slow	ADJ
ajst-28818	6	19	drift	drift	NOUN
ajst-28818	6	20	motions	motion	NOUN
ajst-28818	6	21	can	can	AUX
ajst-28818	6	22	exacerbate	exacerbate	VERB
ajst-28818	6	23	the	the	DET
ajst-28818	6	24	nonlinearity	nonlinearity	NOUN
ajst-28818	6	25	of	of	ADP
ajst-28818	6	26	bit	bit	NOUN
ajst-28818	6	27	rotation	rotation	NOUN
ajst-28818	6	28	.	.	PUNCT
ajst-28818	7	1	managing	manage	VERB
ajst-28818	7	2	the	the	DET
ajst-28818	7	3	amplitude	amplitude	NOUN
ajst-28818	7	4	and	and	CCONJ
ajst-28818	7	5	frequency	frequency	NOUN
ajst-28818	7	6	of	of	ADP
ajst-28818	7	7	heave	heave	ADJ
ajst-28818	7	8	motions	motion	NOUN
ajst-28818	7	9	is	be	AUX
ajst-28818	7	10	crucial	crucial	ADJ
ajst-28818	7	11	to	to	PART
ajst-28818	7	12	prevent	prevent	VERB
ajst-28818	7	13	resonances	resonance	NOUN
ajst-28818	7	14	that	that	PRON
ajst-28818	7	15	can	can	AUX
ajst-28818	7	16	arise	arise	VERB
ajst-28818	7	17	between	between	ADP
ajst-28818	7	18	the	the	DET
ajst-28818	7	19	drill	drill	NOUN
ajst-28818	7	20	-	-	PUNCT
ajst-28818	7	21	string	string	NOUN
ajst-28818	7	22	and	and	CCONJ
ajst-28818	7	23	the	the	DET
ajst-28818	7	24	bit	bit	NOUN
ajst-28818	7	25	,	,	PUNCT
ajst-28818	7	26	ensuring	ensure	VERB
ajst-28818	7	27	improved	improved	ADJ
ajst-28818	7	28	safety	safety	NOUN
ajst-28818	7	29	and	and	CCONJ
ajst-28818	7	30	efficiency	efficiency	NOUN
ajst-28818	7	31	in	in	ADP
ajst-28818	7	32	deep	deep	ADJ
ajst-28818	7	33	-	-	PUNCT
ajst-28818	7	34	water	water	NOUN
ajst-28818	7	35	drilling	drilling	NOUN
ajst-28818	7	36	processes	process	NOUN
ajst-28818	7	37	.	.	PUNCT
ajst-28818	8	1	keywords	keyword	NOUN
ajst-28818	8	2	:	:	PUNCT
ajst-28818	8	3	deepwater	deepwater	NOUN
ajst-28818	8	4	drilling	drilling	NOUN
ajst-28818	8	5	;	;	PUNCT
ajst-28818	8	6	riserless	riserless	NOUN
ajst-28818	8	7	drilling	drilling	NOUN
ajst-28818	8	8	;	;	PUNCT
ajst-28818	8	9	drill	drill	NOUN
ajst-28818	8	10	-	-	PUNCT
ajst-28818	8	11	string	string	NOUN
ajst-28818	8	12	;	;	PUNCT
ajst-28818	8	13	coupling	couple	VERB
ajst-28818	8	14	vibration	vibration	NOUN
ajst-28818	8	15	.	.	PUNCT
ajst-28818	9	1	1	1	X
ajst-28818	9	2	.	.	X
ajst-28818	9	3	introduction	introduction	NOUN
ajst-28818	9	4	the	the	DET
ajst-28818	9	5	drilling	drilling	NOUN
ajst-28818	9	6	technology	technology	NOUN
ajst-28818	9	7	with	with	ADP
ajst-28818	9	8	riserless	riserless	NOUN
ajst-28818	9	9	mud	mud	NOUN
ajst-28818	9	10	recovery(rmr	recovery(rmr	X
ajst-28818	9	11	,	,	PUNCT
ajst-28818	9	12	fig.1	fig.1	PROPN
ajst-28818	9	13	)	)	PUNCT
ajst-28818	9	14	is	be	AUX
ajst-28818	9	15	promising	promise	VERB
ajst-28818	9	16	and	and	CCONJ
ajst-28818	9	17	disruptive	disruptive	ADJ
ajst-28818	9	18	deepwater	deepwater	ADJ
ajst-28818	9	19	drill	drill	NOUN
ajst-28818	9	20	technology	technology	NOUN
ajst-28818	9	21	(	(	PUNCT
ajst-28818	9	22	yang	yang	PROPN
ajst-28818	9	23	et	et	PROPN
ajst-28818	9	24	al	al	PROPN
ajst-28818	9	25	.	.	PROPN
ajst-28818	9	26	,	,	PUNCT
ajst-28818	9	27	2019	2019	NUM
ajst-28818	9	28	)	)	PUNCT
ajst-28818	9	29	.	.	PUNCT
ajst-28818	10	1	it	it	PRON
ajst-28818	10	2	controls	control	VERB
ajst-28818	10	3	wellbore	wellbore	NOUN
ajst-28818	10	4	pressure	pressure	NOUN
ajst-28818	10	5	through	through	ADP
ajst-28818	10	6	a	a	DET
ajst-28818	10	7	subsea	subsea	NOUN
ajst-28818	10	8	pump	pump	NOUN
ajst-28818	10	9	,	,	PUNCT
ajst-28818	10	10	creating	create	VERB
ajst-28818	10	11	a	a	DET
ajst-28818	10	12	dual	dual	ADJ
ajst-28818	10	13	-	-	PUNCT
ajst-28818	10	14	gradient	gradient	NOUN
ajst-28818	10	15	pressure	pressure	NOUN
ajst-28818	10	16	effect	effect	NOUN
ajst-28818	10	17	that	that	PRON
ajst-28818	10	18	expands	expand	VERB
ajst-28818	10	19	the	the	DET
ajst-28818	10	20	safe	safe	ADJ
ajst-28818	10	21	density	density	NOUN
ajst-28818	10	22	window	window	NOUN
ajst-28818	10	23	between	between	ADP
ajst-28818	10	24	formation	formation	NOUN
ajst-28818	10	25	pore	pore	ADJ
ajst-28818	10	26	pressure	pressure	NOUN
ajst-28818	10	27	and	and	CCONJ
ajst-28818	10	28	fracture	fracture	NOUN
ajst-28818	10	29	pressure	pressure	NOUN
ajst-28818	10	30	(	(	PUNCT
ajst-28818	10	31	thakar	thakar	NOUN
ajst-28818	10	32	et	et	PROPN
ajst-28818	10	33	al	al	PROPN
ajst-28818	10	34	.	.	PROPN
ajst-28818	10	35	,	,	PUNCT
ajst-28818	10	36	2018	2018	NUM
ajst-28818	10	37	)	)	PUNCT
ajst-28818	10	38	.	.	PUNCT
ajst-28818	11	1	at	at	ADP
ajst-28818	11	2	the	the	DET
ajst-28818	11	3	same	same	ADJ
ajst-28818	11	4	time	time	NOUN
ajst-28818	11	5	,	,	PUNCT
ajst-28818	11	6	it	it	PRON
ajst-28818	11	7	eliminates	eliminate	VERB
ajst-28818	11	8	the	the	DET
ajst-28818	11	9	conventional	conventional	ADJ
ajst-28818	11	10	riser	riser	NOUN
ajst-28818	11	11	,	,	PUNCT
ajst-28818	11	12	significantly	significantly	ADV
ajst-28818	11	13	reduces	reduce	VERB
ajst-28818	11	14	the	the	DET
ajst-28818	11	15	platform	platform	NOUN
ajst-28818	11	16	load	load	NOUN
ajst-28818	11	17	,	,	PUNCT
ajst-28818	11	18	reduces	reduce	VERB
ajst-28818	11	19	the	the	DET
ajst-28818	11	20	casing	casing	NOUN
ajst-28818	11	21	level	level	NOUN
ajst-28818	11	22	,	,	PUNCT
ajst-28818	11	23	increase	increase	VERB
ajst-28818	11	24	the	the	DET
ajst-28818	11	25	casing	casing	NOUN
ajst-28818	11	26	running	running	NOUN
ajst-28818	11	27	depth	depth	NOUN
ajst-28818	11	28	,	,	PUNCT
ajst-28818	11	29	shortens	shorten	VERB
ajst-28818	11	30	the	the	DET
ajst-28818	11	31	well	well	ADJ
ajst-28818	11	32	construction	construction	NOUN
ajst-28818	11	33	cycle	cycle	NOUN
ajst-28818	11	34	and	and	CCONJ
ajst-28818	11	35	extends	extend	VERB
ajst-28818	11	36	the	the	DET
ajst-28818	11	37	water	water	NOUN
ajst-28818	11	38	depth	depth	NOUN
ajst-28818	11	39	limit	limit	NOUN
ajst-28818	11	40	of	of	ADP
ajst-28818	11	41	drilling	drilling	NOUN
ajst-28818	11	42	operations	operation	NOUN
ajst-28818	11	43	,	,	PUNCT
ajst-28818	11	44	which	which	PRON
ajst-28818	11	45	can	can	AUX
ajst-28818	11	46	solve	solve	VERB
ajst-28818	11	47	many	many	ADJ
ajst-28818	11	48	problems	problem	NOUN
ajst-28818	11	49	in	in	ADP
ajst-28818	11	50	deepwater	deepwater	ADJ
ajst-28818	11	51	drilling	drilling	NOUN
ajst-28818	11	52	technology	technology	NOUN
ajst-28818	11	53	(	(	PUNCT
ajst-28818	11	54	xu	xu	INTJ
ajst-28818	11	55	et	et	PROPN
ajst-28818	11	56	al	al	PROPN
ajst-28818	11	57	.	.	PROPN
ajst-28818	11	58	,	,	PUNCT
ajst-28818	11	59	2011	2011	NUM
ajst-28818	11	60	)	)	PUNCT
ajst-28818	11	61	.	.	PUNCT
ajst-28818	12	1	figure	figure	NOUN
ajst-28818	12	2	1	1	NUM
ajst-28818	12	3	.	.	PUNCT
ajst-28818	12	4	schematic	schematic	ADJ
ajst-28818	12	5	diagram	diagram	NOUN
ajst-28818	12	6	of	of	ADP
ajst-28818	12	7	deepwater	deepwater	ADJ
ajst-28818	12	8	riserless	riserless	NOUN
ajst-28818	12	9	drilling	drill	VERB
ajst-28818	12	10	282	282	NUM
ajst-28818	12	11	the	the	DET
ajst-28818	12	12	drill	drill	NOUN
ajst-28818	12	13	-	-	PUNCT
ajst-28818	12	14	string	string	NOUN
ajst-28818	12	15	system	system	NOUN
ajst-28818	12	16	is	be	AUX
ajst-28818	12	17	a	a	DET
ajst-28818	12	18	core	core	ADJ
ajst-28818	12	19	piece	piece	NOUN
ajst-28818	12	20	of	of	ADP
ajst-28818	12	21	equipment	equipment	NOUN
ajst-28818	12	22	for	for	ADP
ajst-28818	12	23	the	the	DET
ajst-28818	12	24	riserless	riserless	NOUN
ajst-28818	12	25	drilling	drilling	NOUN
ajst-28818	12	26	process	process	NOUN
ajst-28818	12	27	.	.	PUNCT
ajst-28818	13	1	its	its	PRON
ajst-28818	13	2	stability	stability	NOUN
ajst-28818	13	3	not	not	PART
ajst-28818	13	4	only	only	ADV
ajst-28818	13	5	affects	affect	VERB
ajst-28818	13	6	the	the	DET
ajst-28818	13	7	drilling	drilling	NOUN
ajst-28818	13	8	efficiency	efficiency	NOUN
ajst-28818	13	9	,	,	PUNCT
ajst-28818	13	10	but	but	CCONJ
ajst-28818	13	11	also	also	ADV
ajst-28818	13	12	concerns	concern	VERB
ajst-28818	13	13	the	the	DET
ajst-28818	13	14	safety	safety	NOUN
ajst-28818	13	15	of	of	ADP
ajst-28818	13	16	the	the	DET
ajst-28818	13	17	entire	entire	ADJ
ajst-28818	13	18	drilling	drilling	NOUN
ajst-28818	13	19	process	process	NOUN
ajst-28818	13	20	.	.	PUNCT
ajst-28818	14	1	existing	exist	VERB
ajst-28818	14	2	studies	study	NOUN
ajst-28818	14	3	have	have	AUX
ajst-28818	14	4	shown	show	VERB
ajst-28818	14	5	that	that	SCONJ
ajst-28818	14	6	harmful	harmful	ADJ
ajst-28818	14	7	vibrations	vibration	NOUN
ajst-28818	14	8	,	,	PUNCT
ajst-28818	14	9	such	such	ADJ
ajst-28818	14	10	as	as	ADP
ajst-28818	14	11	stick	stick	NOUN
ajst-28818	14	12	-	-	PUNCT
ajst-28818	14	13	slip	slip	NOUN
ajst-28818	14	14	vibration	vibration	NOUN
ajst-28818	14	15	,	,	PUNCT
ajst-28818	14	16	drill	drill	NOUN
ajst-28818	14	17	jump	jump	NOUN
ajst-28818	14	18	,	,	PUNCT
ajst-28818	14	19	and	and	CCONJ
ajst-28818	14	20	eddy	eddy	PROPN
ajst-28818	14	21	motion	motion	PROPN
ajst-28818	14	22	,	,	PUNCT
ajst-28818	14	23	are	be	AUX
ajst-28818	14	24	the	the	DET
ajst-28818	14	25	main	main	ADJ
ajst-28818	14	26	causes	cause	NOUN
ajst-28818	14	27	of	of	ADP
ajst-28818	14	28	premature	premature	ADJ
ajst-28818	14	29	failure	failure	NOUN
ajst-28818	14	30	of	of	ADP
ajst-28818	14	31	drill	drill	NOUN
ajst-28818	14	32	-	-	PUNCT
ajst-28818	14	33	string	string	NOUN
ajst-28818	14	34	and	and	CCONJ
ajst-28818	14	35	bits	bit	NOUN
ajst-28818	14	36	,	,	PUNCT
ajst-28818	14	37	deviation	deviation	NOUN
ajst-28818	14	38	of	of	ADP
ajst-28818	14	39	borehole	borehole	NOUN
ajst-28818	14	40	trajectory	trajectory	NOUN
ajst-28818	14	41	,	,	PUNCT
ajst-28818	14	42	reduction	reduction	NOUN
ajst-28818	14	43	of	of	ADP
ajst-28818	14	44	drilling	drilling	NOUN
ajst-28818	14	45	speed	speed	NOUN
ajst-28818	14	46	,	,	PUNCT
ajst-28818	14	47	and	and	CCONJ
ajst-28818	14	48	reduction	reduction	NOUN
ajst-28818	14	49	of	of	ADP
ajst-28818	14	50	measurement	measurement	NOUN
ajst-28818	14	51	while	while	SCONJ
ajst-28818	14	52	drilling	drilling	NOUN
ajst-28818	14	53	accuracy	accuracy	NOUN
ajst-28818	14	54	(	(	PUNCT
ajst-28818	14	55	guzek	guzek	PROPN
ajst-28818	14	56	et	et	PROPN
ajst-28818	14	57	al	al	PROPN
ajst-28818	14	58	.	.	PROPN
ajst-28818	14	59	,	,	PUNCT
ajst-28818	14	60	2015	2015	NUM
ajst-28818	14	61	;	;	PUNCT
ajst-28818	14	62	kessai	kessai	PROPN
ajst-28818	14	63	et	et	PROPN
ajst-28818	14	64	al	al	PROPN
ajst-28818	14	65	.	.	PROPN
ajst-28818	14	66	,	,	PUNCT
ajst-28818	14	67	2022	2022	NUM
ajst-28818	14	68	)	)	PUNCT
ajst-28818	14	69	.	.	PUNCT
ajst-28818	15	1	therefore	therefore	ADV
ajst-28818	15	2	,	,	PUNCT
ajst-28818	15	3	systematic	systematic	ADJ
ajst-28818	15	4	,	,	PUNCT
ajst-28818	15	5	comprehensive	comprehensive	ADJ
ajst-28818	15	6	and	and	CCONJ
ajst-28818	15	7	accurate	accurate	ADJ
ajst-28818	15	8	dynamic	dynamic	ADJ
ajst-28818	15	9	analysis	analysis	NOUN
ajst-28818	15	10	of	of	ADP
ajst-28818	15	11	drill	drill	NOUN
ajst-28818	15	12	-	-	PUNCT
ajst-28818	15	13	string	string	NOUN
ajst-28818	15	14	system	system	NOUN
ajst-28818	15	15	can	can	AUX
ajst-28818	15	16	better	well	ADV
ajst-28818	15	17	understand	understand	VERB
ajst-28818	15	18	and	and	CCONJ
ajst-28818	15	19	master	master	VERB
ajst-28818	15	20	the	the	DET
ajst-28818	15	21	working	work	VERB
ajst-28818	15	22	condition	condition	NOUN
ajst-28818	15	23	of	of	ADP
ajst-28818	15	24	drill	drill	NOUN
ajst-28818	15	25	-	-	PUNCT
ajst-28818	15	26	string	string	NOUN
ajst-28818	15	27	,	,	PUNCT
ajst-28818	15	28	which	which	PRON
ajst-28818	15	29	is	be	AUX
ajst-28818	15	30	of	of	ADP
ajst-28818	15	31	great	great	ADJ
ajst-28818	15	32	significance	significance	NOUN
ajst-28818	15	33	to	to	PART
ajst-28818	15	34	improve	improve	VERB
ajst-28818	15	35	drilling	drilling	NOUN
ajst-28818	15	36	efficiency	efficiency	NOUN
ajst-28818	15	37	and	and	CCONJ
ajst-28818	15	38	reduce	reduce	VERB
ajst-28818	15	39	drilling	drilling	NOUN
ajst-28818	15	40	cost	cost	NOUN
ajst-28818	15	41	.	.	PUNCT
ajst-28818	16	1	depending	depend	VERB
ajst-28818	16	2	on	on	ADP
ajst-28818	16	3	the	the	DET
ajst-28818	16	4	mode	mode	NOUN
ajst-28818	16	5	of	of	ADP
ajst-28818	16	6	vibration	vibration	NOUN
ajst-28818	16	7	,	,	PUNCT
ajst-28818	16	8	the	the	DET
ajst-28818	16	9	drill	drill	NOUN
ajst-28818	16	10	-	-	PUNCT
ajst-28818	16	11	string	string	NOUN
ajst-28818	16	12	vibrations	vibration	NOUN
ajst-28818	16	13	can	can	AUX
ajst-28818	16	14	be	be	AUX
ajst-28818	16	15	divided	divide	VERB
ajst-28818	16	16	into	into	ADP
ajst-28818	16	17	axial	axial	ADJ
ajst-28818	16	18	,	,	PUNCT
ajst-28818	16	19	lateral	lateral	ADJ
ajst-28818	16	20	,	,	PUNCT
ajst-28818	16	21	and	and	CCONJ
ajst-28818	16	22	torsional	torsional	ADJ
ajst-28818	16	23	vibrations	vibration	NOUN
ajst-28818	16	24	.	.	PUNCT
ajst-28818	17	1	each	each	DET
ajst-28818	17	2	individual	individual	ADJ
ajst-28818	17	3	vibration	vibration	NOUN
ajst-28818	17	4	mode	mode	NOUN
ajst-28818	17	5	has	have	VERB
ajst-28818	17	6	a	a	DET
ajst-28818	17	7	significant	significant	ADJ
ajst-28818	17	8	effect	effect	NOUN
ajst-28818	17	9	on	on	ADP
ajst-28818	17	10	the	the	DET
ajst-28818	17	11	drill	drill	NOUN
ajst-28818	17	12	-	-	PUNCT
ajst-28818	17	13	string	string	NOUN
ajst-28818	17	14	(	(	PUNCT
ajst-28818	17	15	ren	ren	NOUN
ajst-28818	17	16	et	et	PROPN
ajst-28818	17	17	al	al	PROPN
ajst-28818	17	18	.	.	PROPN
ajst-28818	17	19	,	,	PUNCT
ajst-28818	17	20	2018	2018	NUM
ajst-28818	17	21	)	)	PUNCT
ajst-28818	17	22	.	.	PUNCT
ajst-28818	18	1	limited	limit	VERB
ajst-28818	18	2	by	by	ADP
ajst-28818	18	3	cognitive	cognitive	ADJ
ajst-28818	18	4	level	level	NOUN
ajst-28818	18	5	and	and	CCONJ
ajst-28818	18	6	computational	computational	ADJ
ajst-28818	18	7	conditions	condition	NOUN
ajst-28818	18	8	,	,	PUNCT
ajst-28818	18	9	early	early	ADJ
ajst-28818	18	10	studies	study	NOUN
ajst-28818	18	11	focused	focus	VERB
ajst-28818	18	12	on	on	ADP
ajst-28818	18	13	the	the	DET
ajst-28818	18	14	analysis	analysis	NOUN
ajst-28818	18	15	of	of	ADP
ajst-28818	18	16	uncoupled	uncoupled	ADJ
ajst-28818	18	17	unidirectional	unidirectional	ADJ
ajst-28818	18	18	vibrations	vibration	NOUN
ajst-28818	18	19	in	in	ADP
ajst-28818	18	20	vertical	vertical	ADJ
ajst-28818	18	21	wells	well	NOUN
ajst-28818	18	22	.	.	PUNCT
ajst-28818	19	1	in	in	ADP
ajst-28818	19	2	spite	spite	NOUN
ajst-28818	19	3	of	of	ADP
ajst-28818	19	4	the	the	DET
ajst-28818	19	5	limitations	limitation	NOUN
ajst-28818	19	6	of	of	ADP
ajst-28818	19	7	the	the	DET
ajst-28818	19	8	method	method	NOUN
ajst-28818	19	9	and	and	CCONJ
ajst-28818	19	10	the	the	DET
ajst-28818	19	11	means	mean	NOUN
ajst-28818	19	12	,	,	PUNCT
ajst-28818	19	13	it	it	PRON
ajst-28818	19	14	is	be	AUX
ajst-28818	19	15	important	important	ADJ
ajst-28818	19	16	to	to	PART
ajst-28818	19	17	reveal	reveal	VERB
ajst-28818	19	18	to	to	ADP
ajst-28818	19	19	some	some	DET
ajst-28818	19	20	extent	extent	NOUN
ajst-28818	19	21	the	the	DET
ajst-28818	19	22	law	law	NOUN
ajst-28818	19	23	of	of	ADP
ajst-28818	19	24	vibration	vibration	NOUN
ajst-28818	19	25	in	in	ADP
ajst-28818	19	26	each	each	DET
ajst-28818	19	27	direction	direction	NOUN
ajst-28818	19	28	of	of	ADP
ajst-28818	19	29	the	the	DET
ajst-28818	19	30	drill	drill	NOUN
ajst-28818	19	31	-	-	PUNCT
ajst-28818	19	32	string	string	NOUN
ajst-28818	19	33	(	(	PUNCT
ajst-28818	19	34	ghasemloonia	ghasemloonia	NOUN
ajst-28818	19	35	et	et	PROPN
ajst-28818	19	36	al	al	PROPN
ajst-28818	19	37	.	.	PROPN
ajst-28818	19	38	,	,	PUNCT
ajst-28818	19	39	2015	2015	NUM
ajst-28818	19	40	)	)	PUNCT
ajst-28818	19	41	.	.	PUNCT
ajst-28818	20	1	with	with	ADP
ajst-28818	20	2	the	the	DET
ajst-28818	20	3	development	development	NOUN
ajst-28818	20	4	and	and	CCONJ
ajst-28818	20	5	application	application	NOUN
ajst-28818	20	6	of	of	ADP
ajst-28818	20	7	vibration	vibration	NOUN
ajst-28818	20	8	-	-	PUNCT
ajst-28818	20	9	while	while	NOUN
ajst-28818	20	10	-	-	PUNCT
ajst-28818	20	11	drilling	drilling	NOUN
ajst-28818	20	12	instruments	instrument	NOUN
ajst-28818	20	13	and	and	CCONJ
ajst-28818	20	14	the	the	DET
ajst-28818	20	15	revelation	revelation	NOUN
ajst-28818	20	16	of	of	ADP
ajst-28818	20	17	drill	drill	NOUN
ajst-28818	20	18	-	-	PUNCT
ajst-28818	20	19	string	string	NOUN
ajst-28818	20	20	vibration	vibration	NOUN
ajst-28818	20	21	mechanism	mechanism	NOUN
ajst-28818	20	22	,	,	PUNCT
ajst-28818	20	23	it	it	PRON
ajst-28818	20	24	is	be	AUX
ajst-28818	20	25	proved	prove	VERB
ajst-28818	20	26	that	that	SCONJ
ajst-28818	20	27	drill	drill	NOUN
ajst-28818	20	28	-	-	PUNCT
ajst-28818	20	29	string	string	NOUN
ajst-28818	20	30	vibration	vibration	NOUN
ajst-28818	20	31	is	be	AUX
ajst-28818	20	32	a	a	DET
ajst-28818	20	33	whole	whole	ADJ
ajst-28818	20	34	,	,	PUNCT
ajst-28818	20	35	and	and	CCONJ
ajst-28818	20	36	axial	axial	ADJ
ajst-28818	20	37	,	,	PUNCT
ajst-28818	20	38	lateral	lateral	ADJ
ajst-28818	20	39	,	,	PUNCT
ajst-28818	20	40	and	and	CCONJ
ajst-28818	20	41	torsional	torsional	ADJ
ajst-28818	20	42	vibration	vibration	NOUN
ajst-28818	20	43	exist	exist	VERB
ajst-28818	20	44	and	and	CCONJ
ajst-28818	20	45	interact	interact	VERB
ajst-28818	20	46	with	with	ADP
ajst-28818	20	47	each	each	DET
ajst-28818	20	48	other	other	ADJ
ajst-28818	20	49	at	at	ADP
ajst-28818	20	50	the	the	DET
ajst-28818	20	51	same	same	ADJ
ajst-28818	20	52	time	time	NOUN
ajst-28818	20	53	.	.	PUNCT
ajst-28818	21	1	any	any	DET
ajst-28818	21	2	single	single	ADJ
ajst-28818	21	3	aspect	aspect	NOUN
ajst-28818	21	4	of	of	ADP
ajst-28818	21	5	vibration	vibration	NOUN
ajst-28818	21	6	research	research	NOUN
ajst-28818	21	7	is	be	AUX
ajst-28818	21	8	incomplete	incomplete	ADJ
ajst-28818	21	9	(	(	PUNCT
ajst-28818	21	10	li	li	PROPN
ajst-28818	21	11	et	et	PROPN
ajst-28818	21	12	al	al	PROPN
ajst-28818	21	13	.	.	PROPN
ajst-28818	21	14	,	,	PUNCT
ajst-28818	21	15	2017	2017	NUM
ajst-28818	21	16	)	)	PUNCT
ajst-28818	21	17	.	.	PUNCT
ajst-28818	22	1	with	with	ADP
ajst-28818	22	2	the	the	DET
ajst-28818	22	3	development	development	NOUN
ajst-28818	22	4	of	of	ADP
ajst-28818	22	5	computer	computer	NOUN
ajst-28818	22	6	technology	technology	NOUN
ajst-28818	22	7	,	,	PUNCT
ajst-28818	22	8	some	some	DET
ajst-28818	22	9	scholars	scholar	NOUN
ajst-28818	22	10	began	begin	VERB
ajst-28818	22	11	to	to	PART
ajst-28818	22	12	focus	focus	VERB
ajst-28818	22	13	on	on	ADP
ajst-28818	22	14	the	the	DET
ajst-28818	22	15	axial	axial	ADJ
ajst-28818	22	16	-	-	PUNCT
ajst-28818	22	17	lateral	lateral	ADJ
ajst-28818	22	18	-	-	PUNCT
ajst-28818	22	19	torsional	torsional	NOUN
ajst-28818	22	20	(	(	PUNCT
ajst-28818	22	21	alt	alt	ADJ
ajst-28818	22	22	)	)	PUNCT
ajst-28818	22	23	coupled	couple	VERB
ajst-28818	22	24	vibrations	vibration	NOUN
ajst-28818	22	25	of	of	ADP
ajst-28818	22	26	the	the	DET
ajst-28818	22	27	drill	drill	NOUN
ajst-28818	22	28	-	-	PUNCT
ajst-28818	22	29	string	string	NOUN
ajst-28818	22	30	.	.	PUNCT
ajst-28818	23	1	dykstra	dykstra	PROPN
ajst-28818	23	2	(	(	PUNCT
ajst-28818	23	3	1996	1996	NUM
ajst-28818	23	4	)	)	PUNCT
ajst-28818	23	5	was	be	AUX
ajst-28818	23	6	one	one	NUM
ajst-28818	23	7	of	of	ADP
ajst-28818	23	8	the	the	DET
ajst-28818	23	9	earliest	early	ADJ
ajst-28818	23	10	scholars	scholar	NOUN
ajst-28818	23	11	to	to	PART
ajst-28818	23	12	study	study	VERB
ajst-28818	23	13	the	the	DET
ajst-28818	23	14	alt	alt	ADV
ajst-28818	23	15	coupled	couple	VERB
ajst-28818	23	16	vibration	vibration	NOUN
ajst-28818	23	17	of	of	ADP
ajst-28818	23	18	drillstring	drillstring	NOUN
ajst-28818	23	19	.	.	PUNCT
ajst-28818	24	1	he	he	PRON
ajst-28818	24	2	used	use	VERB
ajst-28818	24	3	the	the	DET
ajst-28818	24	4	energy	energy	NOUN
ajst-28818	24	5	method	method	NOUN
ajst-28818	24	6	to	to	PART
ajst-28818	24	7	develop	develop	VERB
ajst-28818	24	8	a	a	DET
ajst-28818	24	9	coupled	couple	VERB
ajst-28818	24	10	vibrational	vibrational	ADJ
ajst-28818	24	11	model	model	NOUN
ajst-28818	24	12	of	of	ADP
ajst-28818	24	13	the	the	DET
ajst-28818	24	14	drill	drill	NOUN
ajst-28818	24	15	-	-	PUNCT
ajst-28818	24	16	string	string	NOUN
ajst-28818	24	17	.	.	PUNCT
ajst-28818	25	1	in	in	ADP
ajst-28818	25	2	his	his	PRON
ajst-28818	25	3	paper	paper	NOUN
ajst-28818	25	4	,	,	PUNCT
ajst-28818	25	5	he	he	PRON
ajst-28818	25	6	gave	give	VERB
ajst-28818	25	7	a	a	DET
ajst-28818	25	8	detailed	detailed	ADJ
ajst-28818	25	9	modeling	modeling	NOUN
ajst-28818	25	10	process	process	NOUN
ajst-28818	25	11	,	,	PUNCT
ajst-28818	25	12	which	which	PRON
ajst-28818	25	13	provided	provide	VERB
ajst-28818	25	14	a	a	DET
ajst-28818	25	15	reference	reference	NOUN
ajst-28818	25	16	for	for	ADP
ajst-28818	25	17	later	later	ADJ
ajst-28818	25	18	scholars	scholar	NOUN
ajst-28818	25	19	.	.	PUNCT
ajst-28818	26	1	baumgar	baumgar	PROPN
ajst-28818	26	2	(	(	PUNCT
ajst-28818	26	3	2000	2000	NUM
ajst-28818	26	4	)	)	PUNCT
ajst-28818	26	5	derived	derive	VERB
ajst-28818	26	6	a	a	DET
ajst-28818	26	7	atl	atl	PROPN
ajst-28818	26	8	nonlinear	nonlinear	PROPN
ajst-28818	26	9	differential	differential	ADJ
ajst-28818	26	10	equation	equation	NOUN
ajst-28818	26	11	of	of	ADP
ajst-28818	26	12	drill	drill	NOUN
ajst-28818	26	13	-	-	PUNCT
ajst-28818	26	14	string	string	NOUN
ajst-28818	26	15	to	to	PART
ajst-28818	26	16	predict	predict	VERB
ajst-28818	26	17	the	the	DET
ajst-28818	26	18	effects	effect	NOUN
ajst-28818	26	19	of	of	ADP
ajst-28818	26	20	mud	mud	NOUN
ajst-28818	26	21	on	on	ADP
ajst-28818	26	22	bit	bit	NOUN
ajst-28818	26	23	pressure	pressure	NOUN
ajst-28818	26	24	,	,	PUNCT
ajst-28818	26	25	drill	drill	NOUN
ajst-28818	26	26	-	-	PUNCT
ajst-28818	26	27	string	string	NOUN
ajst-28818	26	28	buckling	buckling	NOUN
ajst-28818	26	29	,	,	PUNCT
ajst-28818	26	30	and	and	CCONJ
ajst-28818	26	31	bit	bit	NOUN
ajst-28818	26	32	stick	stick	NOUN
ajst-28818	26	33	-	-	PUNCT
ajst-28818	26	34	slip	slip	NOUN
ajst-28818	26	35	vibration	vibration	NOUN
ajst-28818	26	36	.	.	PUNCT
ajst-28818	27	1	tucker	tucker	PROPN
ajst-28818	27	2	and	and	CCONJ
ajst-28818	27	3	wang	wang	PROPN
ajst-28818	27	4	(	(	PUNCT
ajst-28818	27	5	1999	1999	NUM
ajst-28818	27	6	)	)	PUNCT
ajst-28818	27	7	established	establish	VERB
ajst-28818	27	8	the	the	DET
ajst-28818	27	9	alt	alt	NOUN
ajst-28818	27	10	coupled	couple	VERB
ajst-28818	27	11	vibration	vibration	NOUN
ajst-28818	27	12	model	model	NOUN
ajst-28818	27	13	of	of	ADP
ajst-28818	27	14	drill	drill	NOUN
ajst-28818	27	15	-	-	PUNCT
ajst-28818	27	16	string	string	NOUN
ajst-28818	27	17	considering	consider	VERB
ajst-28818	27	18	the	the	DET
ajst-28818	27	19	nonlinear	nonlinear	ADJ
ajst-28818	27	20	strain	strain	NOUN
ajst-28818	27	21	and	and	CCONJ
ajst-28818	27	22	realized	realize	VERB
ajst-28818	27	23	the	the	DET
ajst-28818	27	24	coupled	couple	VERB
ajst-28818	27	25	vibration	vibration	NOUN
ajst-28818	27	26	of	of	ADP
ajst-28818	27	27	three	three	NUM
ajst-28818	27	28	vibration	vibration	NOUN
ajst-28818	27	29	forms.this	forms.this	PRON
ajst-28818	27	30	model	model	NOUN
ajst-28818	27	31	was	be	AUX
ajst-28818	27	32	used	use	VERB
ajst-28818	27	33	to	to	PART
ajst-28818	27	34	discuss	discuss	VERB
ajst-28818	27	35	the	the	DET
ajst-28818	27	36	stability	stability	NOUN
ajst-28818	27	37	of	of	ADP
ajst-28818	27	38	axisymmetric	axisymmetric	ADJ
ajst-28818	27	39	drill	drill	NOUN
ajst-28818	27	40	-	-	PUNCT
ajst-28818	27	41	string	string	NOUN
ajst-28818	27	42	configurations	configuration	NOUN
ajst-28818	27	43	in	in	ADP
ajst-28818	27	44	vertical	vertical	ADJ
ajst-28818	27	45	boreholes	borehole	NOUN
ajst-28818	27	46	under	under	ADP
ajst-28818	27	47	both	both	PRON
ajst-28818	27	48	coupled	couple	VERB
ajst-28818	27	49	atl	atl	PROPN
ajst-28818	27	50	perturbations	perturbation	NOUN
ajst-28818	27	51	as	as	ADV
ajst-28818	27	52	well	well	ADV
ajst-28818	27	53	as	as	ADP
ajst-28818	27	54	general	general	ADJ
ajst-28818	27	55	non	non	ADJ
ajst-28818	27	56	-	-	ADJ
ajst-28818	27	57	perturbative	perturbative	ADJ
ajst-28818	27	58	coupled	couple	VERB
ajst-28818	27	59	vibrational	vibrational	ADJ
ajst-28818	27	60	states	state	NOUN
ajst-28818	27	61	under	under	ADP
ajst-28818	27	62	extreme	extreme	ADJ
ajst-28818	27	63	conditions	condition	NOUN
ajst-28818	27	64	of	of	ADP
ajst-28818	27	65	lateral	lateral	ADJ
ajst-28818	27	66	whirl	whirl	NOUN
ajst-28818	27	67	.	.	PUNCT
ajst-28818	28	1	de	de	PROPN
ajst-28818	28	2	moraes	moraes	PROPN
ajst-28818	28	3	and	and	CCONJ
ajst-28818	28	4	savi	savi	VERB
ajst-28818	28	5	(	(	PUNCT
ajst-28818	28	6	2019	2019	NUM
ajst-28818	28	7	)	)	PUNCT
ajst-28818	28	8	established	establish	VERB
ajst-28818	28	9	a	a	DET
ajst-28818	28	10	four	four	NUM
ajst-28818	28	11	-	-	PUNCT
ajst-28818	28	12	degree	degree	NOUN
ajst-28818	28	13	-	-	PUNCT
ajst-28818	28	14	of	of	ADP
ajst-28818	28	15	-	-	PUNCT
ajst-28818	28	16	freedom	freedom	NOUN
ajst-28818	28	17	mass	mass	NOUN
ajst-28818	28	18	alt	alt	NOUN
ajst-28818	28	19	coupled	couple	VERB
ajst-28818	28	20	vibration	vibration	NOUN
ajst-28818	28	21	model	model	NOUN
ajst-28818	28	22	of	of	ADP
ajst-28818	28	23	drill	drill	NOUN
ajst-28818	28	24	-	-	PUNCT
ajst-28818	28	25	string	string	NOUN
ajst-28818	28	26	,	,	PUNCT
ajst-28818	28	27	and	and	CCONJ
ajst-28818	28	28	discussed	discuss	VERB
ajst-28818	28	29	drilling	drilling	NOUN
ajst-28818	28	30	skip	skip	PROPN
ajst-28818	28	31	,	,	PUNCT
ajst-28818	28	32	stick	stick	NOUN
ajst-28818	28	33	-	-	PUNCT
ajst-28818	28	34	slip	slip	NOUN
ajst-28818	28	35	vibration	vibration	NOUN
ajst-28818	28	36	,	,	PUNCT
ajst-28818	28	37	eddy	eddy	PROPN
ajst-28818	28	38	motion	motion	NOUN
ajst-28818	28	39	and	and	CCONJ
ajst-28818	28	40	their	their	PRON
ajst-28818	28	41	combined	combine	VERB
ajst-28818	28	42	effects	effect	NOUN
ajst-28818	28	43	.	.	PUNCT
ajst-28818	29	1	some	some	DET
ajst-28818	29	2	scholars	scholar	NOUN
ajst-28818	29	3	(	(	PUNCT
ajst-28818	29	4	khoshroo	khoshroo	NOUN
ajst-28818	29	5	and	and	CCONJ
ajst-28818	29	6	eftekhari	eftekhari	NOUN
ajst-28818	29	7	,	,	PUNCT
ajst-28818	29	8	2022	2022	NUM
ajst-28818	29	9	;	;	PUNCT
ajst-28818	29	10	liu	liu	PROPN
ajst-28818	29	11	and	and	CCONJ
ajst-28818	29	12	gao	gao	PROPN
ajst-28818	29	13	,	,	PUNCT
ajst-28818	29	14	2017	2017	NUM
ajst-28818	29	15	;	;	PUNCT
ajst-28818	29	16	rajabali	rajabali	NOUN
ajst-28818	29	17	et	et	PROPN
ajst-28818	29	18	al	al	PROPN
ajst-28818	29	19	.	.	PROPN
ajst-28818	29	20	,	,	PUNCT
ajst-28818	29	21	2020	2020	NUM
ajst-28818	29	22	)	)	PUNCT
ajst-28818	29	23	studied	study	VERB
ajst-28818	29	24	the	the	DET
ajst-28818	29	25	vibration	vibration	NOUN
ajst-28818	29	26	behavior	behavior	NOUN
ajst-28818	29	27	of	of	ADP
ajst-28818	29	28	local	local	ADJ
ajst-28818	29	29	horizontal	horizontal	ADJ
ajst-28818	29	30	drill	drill	NOUN
ajst-28818	29	31	-	-	PUNCT
ajst-28818	29	32	string	string	NOUN
ajst-28818	29	33	by	by	ADP
ajst-28818	29	34	using	use	VERB
ajst-28818	29	35	alt	alt	NOUN
ajst-28818	29	36	coupled	couple	VERB
ajst-28818	29	37	vibration	vibration	NOUN
ajst-28818	29	38	model	model	NOUN
ajst-28818	29	39	,	,	PUNCT
ajst-28818	29	40	providing	provide	VERB
ajst-28818	29	41	theoretical	theoretical	ADJ
ajst-28818	29	42	support	support	NOUN
ajst-28818	29	43	for	for	ADP
ajst-28818	29	44	the	the	DET
ajst-28818	29	45	combination	combination	NOUN
ajst-28818	29	46	design	design	NOUN
ajst-28818	29	47	of	of	ADP
ajst-28818	29	48	horizontal	horizontal	ADJ
ajst-28818	29	49	drill	drill	NOUN
ajst-28818	29	50	-	-	PUNCT
ajst-28818	29	51	string	string	NOUN
ajst-28818	29	52	,	,	PUNCT
ajst-28818	29	53	especially	especially	ADV
ajst-28818	29	54	bha	bha	ADJ
ajst-28818	29	55	tools	tool	NOUN
ajst-28818	29	56	.	.	PUNCT
ajst-28818	30	1	some	some	DET
ajst-28818	30	2	scholars	scholar	NOUN
ajst-28818	30	3	(	(	PUNCT
ajst-28818	30	4	cai	cai	X
ajst-28818	30	5	et	et	PROPN
ajst-28818	30	6	al	al	PROPN
ajst-28818	30	7	.	.	PROPN
ajst-28818	30	8	,	,	PUNCT
ajst-28818	30	9	2022	2022	NUM
ajst-28818	30	10	;	;	PUNCT
ajst-28818	30	11	liu	liu	PROPN
ajst-28818	30	12	et	et	PROPN
ajst-28818	30	13	al	al	PROPN
ajst-28818	30	14	.	.	PROPN
ajst-28818	30	15	,	,	PUNCT
ajst-28818	30	16	2022	2022	NUM
ajst-28818	30	17	;	;	PUNCT
ajst-28818	30	18	li	li	PROPN
ajst-28818	30	19	et	et	PROPN
ajst-28818	30	20	al	al	PROPN
ajst-28818	30	21	.	.	PROPN
ajst-28818	30	22	,	,	PUNCT
ajst-28818	30	23	2020	2020	NUM
ajst-28818	30	24	)	)	PUNCT
ajst-28818	30	25	have	have	AUX
ajst-28818	30	26	begun	begin	VERB
ajst-28818	30	27	to	to	PART
ajst-28818	30	28	use	use	VERB
ajst-28818	30	29	whole	whole	ADJ
ajst-28818	30	30	-	-	PUNCT
ajst-28818	30	31	hole	hole	NOUN
ajst-28818	30	32	alt	alt	NOUN
ajst-28818	30	33	coupled	couple	VERB
ajst-28818	30	34	vibration	vibration	NOUN
ajst-28818	30	35	model	model	NOUN
ajst-28818	30	36	to	to	PART
ajst-28818	30	37	study	study	VERB
ajst-28818	30	38	drill	drill	NOUN
ajst-28818	30	39	-	-	PUNCT
ajst-28818	30	40	string	string	NOUN
ajst-28818	30	41	vibration	vibration	NOUN
ajst-28818	30	42	.	.	PUNCT
ajst-28818	31	1	however	however	ADV
ajst-28818	31	2	,	,	PUNCT
ajst-28818	31	3	these	these	DET
ajst-28818	31	4	studies	study	NOUN
ajst-28818	31	5	mainly	mainly	ADV
ajst-28818	31	6	focus	focus	VERB
ajst-28818	31	7	on	on	ADP
ajst-28818	31	8	drill	drill	NOUN
ajst-28818	31	9	-	-	PUNCT
ajst-28818	31	10	string	string	NOUN
ajst-28818	31	11	dynamics	dynamic	NOUN
ajst-28818	31	12	in	in	ADP
ajst-28818	31	13	traditional	traditional	ADJ
ajst-28818	31	14	land	land	NOUN
ajst-28818	31	15	drilling	drilling	NOUN
ajst-28818	31	16	,	,	PUNCT
ajst-28818	31	17	while	while	SCONJ
ajst-28818	31	18	there	there	PRON
ajst-28818	31	19	are	be	VERB
ajst-28818	31	20	relatively	relatively	ADV
ajst-28818	31	21	few	few	ADJ
ajst-28818	31	22	studies	study	NOUN
ajst-28818	31	23	on	on	ADP
ajst-28818	31	24	drill	drill	NOUN
ajst-28818	31	25	-	-	PUNCT
ajst-28818	31	26	string	string	NOUN
ajst-28818	31	27	dynamics	dynamic	NOUN
ajst-28818	31	28	in	in	ADP
ajst-28818	31	29	offshore	offshore	ADJ
ajst-28818	31	30	drilling	drilling	NOUN
ajst-28818	31	31	(	(	PUNCT
ajst-28818	31	32	qin	qin	PROPN
ajst-28818	31	33	et	et	PROPN
ajst-28818	31	34	al	al	PROPN
ajst-28818	31	35	.	.	PROPN
ajst-28818	31	36	,	,	PUNCT
ajst-28818	31	37	2022	2022	NUM
ajst-28818	31	38	)	)	PUNCT
ajst-28818	31	39	.	.	PUNCT
ajst-28818	32	1	compared	compare	VERB
ajst-28818	32	2	with	with	ADP
ajst-28818	32	3	conventional	conventional	ADJ
ajst-28818	32	4	land	land	NOUN
ajst-28818	32	5	drilling	drilling	NOUN
ajst-28818	32	6	drill	drill	NOUN
ajst-28818	32	7	-	-	PUNCT
ajst-28818	32	8	string	string	NOUN
ajst-28818	32	9	,	,	PUNCT
ajst-28818	32	10	the	the	DET
ajst-28818	32	11	biggest	big	ADJ
ajst-28818	32	12	difference	difference	NOUN
ajst-28818	32	13	of	of	ADP
ajst-28818	32	14	rmr	rmr	PROPN
ajst-28818	32	15	drill	drill	NOUN
ajst-28818	32	16	-	-	PUNCT
ajst-28818	32	17	string	string	NOUN
ajst-28818	32	18	is	be	AUX
ajst-28818	32	19	that	that	SCONJ
ajst-28818	32	20	its	its	PRON
ajst-28818	32	21	top	top	NOUN
ajst-28818	32	22	is	be	AUX
ajst-28818	32	23	connected	connect	VERB
ajst-28818	32	24	to	to	ADP
ajst-28818	32	25	an	an	DET
ajst-28818	32	26	offshore	offshore	ADJ
ajst-28818	32	27	drilling	drilling	NOUN
ajst-28818	32	28	platform	platform	NOUN
ajst-28818	32	29	or	or	CCONJ
ajst-28818	32	30	drilling	drilling	NOUN
ajst-28818	32	31	ship	ship	NOUN
ajst-28818	32	32	,	,	PUNCT
ajst-28818	32	33	and	and	CCONJ
ajst-28818	32	34	the	the	DET
ajst-28818	32	35	drill	drill	NOUN
ajst-28818	32	36	-	-	PUNCT
ajst-28818	32	37	string	string	NOUN
ajst-28818	32	38	is	be	AUX
ajst-28818	32	39	directly	directly	ADV
ajst-28818	32	40	exposed	expose	VERB
ajst-28818	32	41	to	to	ADP
ajst-28818	32	42	seawater	seawater	NOUN
ajst-28818	32	43	,	,	PUNCT
ajst-28818	32	44	resulting	result	VERB
ajst-28818	32	45	in	in	ADP
ajst-28818	32	46	a	a	DET
ajst-28818	32	47	more	more	ADV
ajst-28818	32	48	complex	complex	ADJ
ajst-28818	32	49	dynamic	dynamic	ADJ
ajst-28818	32	50	environment	environment	NOUN
ajst-28818	32	51	(	(	PUNCT
ajst-28818	32	52	su	su	NOUN
ajst-28818	32	53	et	et	PROPN
ajst-28818	32	54	al	al	PROPN
ajst-28818	32	55	.	.	PROPN
ajst-28818	32	56	,	,	PUNCT
ajst-28818	32	57	2013	2013	NUM
ajst-28818	32	58	)	)	PUNCT
ajst-28818	32	59	.	.	PUNCT
ajst-28818	33	1	under	under	ADP
ajst-28818	33	2	the	the	DET
ajst-28818	33	3	action	action	NOUN
ajst-28818	33	4	of	of	ADP
ajst-28818	33	5	wind	wind	NOUN
ajst-28818	33	6	and	and	CCONJ
ajst-28818	33	7	waves	wave	NOUN
ajst-28818	33	8	,	,	PUNCT
ajst-28818	33	9	the	the	DET
ajst-28818	33	10	floating	float	VERB
ajst-28818	33	11	drilling	drilling	NOUN
ajst-28818	33	12	platform	platform	NOUN
ajst-28818	33	13	will	will	AUX
ajst-28818	33	14	produce	produce	VERB
ajst-28818	33	15	three	three	NUM
ajst-28818	33	16	types	type	NOUN
ajst-28818	33	17	of	of	ADP
ajst-28818	33	18	motion	motion	NOUN
ajst-28818	33	19	,	,	PUNCT
ajst-28818	33	20	including	include	VERB
ajst-28818	33	21	heaving	heaving	NOUN
ajst-28818	33	22	,	,	PUNCT
ajst-28818	33	23	swaying	swaying	NOUN
ajst-28818	33	24	and	and	CCONJ
ajst-28818	33	25	slow	slow	ADJ
ajst-28818	33	26	drift	drift	NOUN
ajst-28818	33	27	,	,	PUNCT
ajst-28818	33	28	of	of	ADP
ajst-28818	33	29	which	which	PRON
ajst-28818	33	30	the	the	DET
ajst-28818	33	31	heaving	heaving	NOUN
ajst-28818	33	32	and	and	CCONJ
ajst-28818	33	33	slow	slow	ADJ
ajst-28818	33	34	drift	drift	NOUN
ajst-28818	33	35	have	have	VERB
ajst-28818	33	36	obvious	obvious	ADJ
ajst-28818	33	37	influence	influence	NOUN
ajst-28818	33	38	on	on	ADP
ajst-28818	33	39	drilling	drilling	NOUN
ajst-28818	33	40	operations	operation	NOUN
ajst-28818	33	41	.	.	PUNCT
ajst-28818	34	1	in	in	ADP
ajst-28818	34	2	the	the	DET
ajst-28818	34	3	process	process	NOUN
ajst-28818	34	4	of	of	ADP
ajst-28818	34	5	drilling	drilling	NOUN
ajst-28818	34	6	,	,	PUNCT
ajst-28818	34	7	the	the	DET
ajst-28818	34	8	platform	platform	NOUN
ajst-28818	34	9	heave	heave	VERB
ajst-28818	34	10	motion	motion	NOUN
ajst-28818	34	11	drives	drive	VERB
ajst-28818	34	12	the	the	DET
ajst-28818	34	13	drill	drill	NOUN
ajst-28818	34	14	-	-	PUNCT
ajst-28818	34	15	string	string	NOUN
ajst-28818	34	16	and	and	CCONJ
ajst-28818	34	17	downhole	downhole	NOUN
ajst-28818	34	18	drill	drill	NOUN
ajst-28818	34	19	tool	tool	NOUN
ajst-28818	34	20	up	up	ADP
ajst-28818	34	21	and	and	CCONJ
ajst-28818	34	22	down	down	ADV
ajst-28818	34	23	,	,	PUNCT
ajst-28818	34	24	which	which	PRON
ajst-28818	34	25	makes	make	VERB
ajst-28818	34	26	the	the	DET
ajst-28818	34	27	pressure	pressure	NOUN
ajst-28818	34	28	of	of	ADP
ajst-28818	34	29	the	the	DET
ajst-28818	34	30	bottom	bottom	ADJ
ajst-28818	34	31	hole	hole	NOUN
ajst-28818	34	32	bit	bit	NOUN
ajst-28818	34	33	fluctuate	fluctuate	NOUN
ajst-28818	34	34	and	and	CCONJ
ajst-28818	34	35	even	even	ADV
ajst-28818	34	36	the	the	DET
ajst-28818	34	37	bit	bit	NOUN
ajst-28818	34	38	skip	skip	ADJ
ajst-28818	34	39	,	,	PUNCT
ajst-28818	34	40	which	which	PRON
ajst-28818	34	41	not	not	PART
ajst-28818	34	42	only	only	ADV
ajst-28818	34	43	affects	affect	VERB
ajst-28818	34	44	the	the	DET
ajst-28818	34	45	drilling	drilling	NOUN
ajst-28818	34	46	efficiency	efficiency	NOUN
ajst-28818	34	47	,	,	PUNCT
ajst-28818	34	48	but	but	CCONJ
ajst-28818	34	49	also	also	ADV
ajst-28818	34	50	may	may	AUX
ajst-28818	34	51	lead	lead	VERB
ajst-28818	34	52	to	to	ADP
ajst-28818	34	53	fatigue	fatigue	NOUN
ajst-28818	34	54	fracture	fracture	NOUN
ajst-28818	34	55	of	of	ADP
ajst-28818	34	56	the	the	DET
ajst-28818	34	57	drill	drill	NOUN
ajst-28818	34	58	-	-	PUNCT
ajst-28818	34	59	string	string	NOUN
ajst-28818	34	60	and	and	CCONJ
ajst-28818	34	61	premature	premature	ADJ
ajst-28818	34	62	failure	failure	NOUN
ajst-28818	34	63	of	of	ADP
ajst-28818	34	64	the	the	DET
ajst-28818	34	65	bit	bit	NOUN
ajst-28818	34	66	.	.	PUNCT
ajst-28818	35	1	at	at	ADP
ajst-28818	35	2	the	the	DET
ajst-28818	35	3	same	same	ADJ
ajst-28818	35	4	time	time	NOUN
ajst-28818	35	5	,	,	PUNCT
ajst-28818	35	6	the	the	DET
ajst-28818	35	7	changing	change	VERB
ajst-28818	35	8	axial	axial	ADJ
ajst-28818	35	9	tension	tension	NOUN
ajst-28818	35	10	of	of	ADP
ajst-28818	35	11	the	the	DET
ajst-28818	35	12	drill	drill	NOUN
ajst-28818	35	13	-	-	PUNCT
ajst-28818	35	14	string	string	NOUN
ajst-28818	35	15	will	will	AUX
ajst-28818	35	16	affect	affect	VERB
ajst-28818	35	17	the	the	DET
ajst-28818	35	18	lateral	lateral	ADJ
ajst-28818	35	19	stiffness	stiffness	NOUN
ajst-28818	35	20	,	,	PUNCT
ajst-28818	35	21	and	and	CCONJ
ajst-28818	35	22	the	the	DET
ajst-28818	35	23	lateral	lateral	ADJ
ajst-28818	35	24	displacement	displacement	NOUN
ajst-28818	35	25	of	of	ADP
ajst-28818	35	26	the	the	DET
ajst-28818	35	27	drill	drill	NOUN
ajst-28818	35	28	-	-	PUNCT
ajst-28818	35	29	string	string	NOUN
ajst-28818	35	30	will	will	AUX
ajst-28818	35	31	fluctuate	fluctuate	VERB
ajst-28818	35	32	constantly	constantly	ADV
ajst-28818	35	33	under	under	ADP
ajst-28818	35	34	the	the	DET
ajst-28818	35	35	action	action	NOUN
ajst-28818	35	36	of	of	ADP
ajst-28818	35	37	seawater	seawater	NOUN
ajst-28818	35	38	load	load	NOUN
ajst-28818	35	39	.	.	PUNCT
ajst-28818	36	1	the	the	DET
ajst-28818	36	2	lateral	lateral	ADJ
ajst-28818	36	3	slow	slow	ADJ
ajst-28818	36	4	drift	drift	NOUN
ajst-28818	36	5	motion	motion	NOUN
ajst-28818	36	6	of	of	ADP
ajst-28818	36	7	the	the	DET
ajst-28818	36	8	drilling	drilling	NOUN
ajst-28818	36	9	platform	platform	NOUN
ajst-28818	36	10	will	will	AUX
ajst-28818	36	11	cause	cause	VERB
ajst-28818	36	12	a	a	DET
ajst-28818	36	13	large	large	ADJ
ajst-28818	36	14	change	change	NOUN
ajst-28818	36	15	in	in	ADP
ajst-28818	36	16	the	the	DET
ajst-28818	36	17	lateral	lateral	ADJ
ajst-28818	36	18	displacement	displacement	NOUN
ajst-28818	36	19	of	of	ADP
ajst-28818	36	20	the	the	DET
ajst-28818	36	21	drill	drill	NOUN
ajst-28818	36	22	-	-	PUNCT
ajst-28818	36	23	string	string	NOUN
ajst-28818	36	24	in	in	ADP
ajst-28818	36	25	the	the	DET
ajst-28818	36	26	seawater	seawater	NOUN
ajst-28818	36	27	segment	segment	NOUN
ajst-28818	36	28	,	,	PUNCT
ajst-28818	36	29	which	which	PRON
ajst-28818	36	30	not	not	PART
ajst-28818	36	31	only	only	ADV
ajst-28818	36	32	changes	change	VERB
ajst-28818	36	33	the	the	DET
ajst-28818	36	34	bending	bend	VERB
ajst-28818	36	35	angle	angle	NOUN
ajst-28818	36	36	and	and	CCONJ
ajst-28818	36	37	bending	bend	VERB
ajst-28818	36	38	moment	moment	NOUN
ajst-28818	36	39	of	of	ADP
ajst-28818	36	40	the	the	DET
ajst-28818	36	41	drill	drill	NOUN
ajst-28818	36	42	-	-	PUNCT
ajst-28818	36	43	string	string	NOUN
ajst-28818	36	44	in	in	ADP
ajst-28818	36	45	the	the	DET
ajst-28818	36	46	seawater	seawater	NOUN
ajst-28818	36	47	segment	segment	NOUN
ajst-28818	36	48	,	,	PUNCT
ajst-28818	36	49	but	but	CCONJ
ajst-28818	36	50	also	also	ADV
ajst-28818	36	51	fluctuates	fluctuate	VERB
ajst-28818	36	52	the	the	DET
ajst-28818	36	53	axial	axial	ADJ
ajst-28818	36	54	displacement	displacement	NOUN
ajst-28818	36	55	of	of	ADP
ajst-28818	36	56	the	the	DET
ajst-28818	36	57	drill	drill	NOUN
ajst-28818	36	58	-	-	PUNCT
ajst-28818	36	59	string	string	NOUN
ajst-28818	36	60	under	under	ADP
ajst-28818	36	61	the	the	DET
ajst-28818	36	62	action	action	NOUN
ajst-28818	36	63	of	of	ADP
ajst-28818	36	64	the	the	DET
ajst-28818	36	65	axial	axial	ADJ
ajst-28818	36	66	and	and	CCONJ
ajst-28818	36	67	lateral	lateral	ADJ
ajst-28818	36	68	coupling	coupling	NOUN
ajst-28818	36	69	(	(	PUNCT
ajst-28818	36	70	xing	xing	PROPN
ajst-28818	36	71	and	and	CCONJ
ajst-28818	36	72	liang	liang	PROPN
ajst-28818	36	73	,	,	PUNCT
ajst-28818	36	74	2015	2015	NUM
ajst-28818	36	75	)	)	PUNCT
ajst-28818	36	76	,	,	PUNCT
ajst-28818	36	77	which	which	PRON
ajst-28818	36	78	further	far	ADV
ajst-28818	36	79	influences	influence	VERB
ajst-28818	36	80	the	the	DET
ajst-28818	36	81	pressure	pressure	NOUN
ajst-28818	36	82	of	of	ADP
ajst-28818	36	83	the	the	DET
ajst-28818	36	84	bit	bit	NOUN
ajst-28818	36	85	.	.	PUNCT
ajst-28818	37	1	the	the	DET
ajst-28818	37	2	conventional	conventional	ADJ
ajst-28818	37	3	theory	theory	NOUN
ajst-28818	37	4	and	and	CCONJ
ajst-28818	37	5	understanding	understanding	NOUN
ajst-28818	37	6	of	of	ADP
ajst-28818	37	7	drill	drill	NOUN
ajst-28818	37	8	-	-	PUNCT
ajst-28818	37	9	string	string	NOUN
ajst-28818	37	10	dynamics	dynamic	NOUN
ajst-28818	37	11	can	can	AUX
ajst-28818	37	12	not	not	PART
ajst-28818	37	13	meet	meet	VERB
ajst-28818	37	14	the	the	DET
ajst-28818	37	15	requirements	requirement	NOUN
ajst-28818	37	16	of	of	ADP
ajst-28818	37	17	analysis	analysis	NOUN
ajst-28818	37	18	and	and	CCONJ
ajst-28818	37	19	design	design	NOUN
ajst-28818	37	20	,	,	PUNCT
ajst-28818	37	21	thus	thus	ADV
ajst-28818	37	22	special	special	ADJ
ajst-28818	37	23	research	research	NOUN
ajst-28818	37	24	on	on	ADP
ajst-28818	37	25	rmr	rmr	PROPN
ajst-28818	37	26	drill	drill	PROPN
ajst-28818	37	27	-	-	PUNCT
ajst-28818	37	28	string	string	NOUN
ajst-28818	37	29	dynamics	dynamic	NOUN
ajst-28818	37	30	must	must	AUX
ajst-28818	37	31	be	be	AUX
ajst-28818	37	32	carried	carry	VERB
ajst-28818	37	33	out	out	ADP
ajst-28818	37	34	.	.	PUNCT
ajst-28818	38	1	however	however	ADV
ajst-28818	38	2	,	,	PUNCT
ajst-28818	38	3	there	there	PRON
ajst-28818	38	4	is	be	VERB
ajst-28818	38	5	a	a	DET
ajst-28818	38	6	lack	lack	NOUN
ajst-28818	38	7	of	of	ADP
ajst-28818	38	8	research	research	NOUN
ajst-28818	38	9	on	on	ADP
ajst-28818	38	10	riserless	riserless	NOUN
ajst-28818	38	11	drill	drill	NOUN
ajst-28818	38	12	-	-	PUNCT
ajst-28818	38	13	stringing	string	VERB
ajst-28818	38	14	.	.	PUNCT
ajst-28818	39	1	wada	wada	PROPN
ajst-28818	39	2	et	et	PROPN
ajst-28818	39	3	al	al	PROPN
ajst-28818	39	4	,	,	PUNCT
ajst-28818	39	5	(	(	PUNCT
ajst-28818	39	6	2018	2018	NUM
ajst-28818	39	7	)	)	PUNCT
ajst-28818	39	8	analyzed	analyze	VERB
ajst-28818	39	9	the	the	DET
ajst-28818	39	10	drilling	drilling	NOUN
ajst-28818	39	11	data	datum	NOUN
ajst-28818	39	12	obtained	obtain	VERB
ajst-28818	39	13	by	by	ADP
ajst-28818	39	14	the	the	DET
ajst-28818	39	15	scientific	scientific	ADJ
ajst-28818	39	16	drilling	drilling	NOUN
ajst-28818	39	17	ship	ship	NOUN
ajst-28818	39	18	chikyu	chikyu	PROPN
ajst-28818	39	19	with	with	ADP
ajst-28818	39	20	a	a	DET
ajst-28818	39	21	8000	8000	NUM
ajst-28818	39	22	m	m	NOUN
ajst-28818	39	23	drill	drill	NOUN
ajst-28818	39	24	-	-	PUNCT
ajst-28818	39	25	string	string	NOUN
ajst-28818	39	26	,	,	PUNCT
ajst-28818	39	27	and	and	CCONJ
ajst-28818	39	28	found	find	VERB
ajst-28818	39	29	that	that	SCONJ
ajst-28818	39	30	the	the	DET
ajst-28818	39	31	axial	axial	ADJ
ajst-28818	39	32	vibration	vibration	NOUN
ajst-28818	39	33	frequency	frequency	NOUN
ajst-28818	39	34	of	of	ADP
ajst-28818	39	35	the	the	DET
ajst-28818	39	36	drill	drill	NOUN
ajst-28818	39	37	pipe	pipe	NOUN
ajst-28818	39	38	is	be	AUX
ajst-28818	39	39	higher	high	ADJ
ajst-28818	39	40	than	than	ADP
ajst-28818	39	41	the	the	DET
ajst-28818	39	42	frequency	frequency	NOUN
ajst-28818	39	43	of	of	ADP
ajst-28818	39	44	the	the	DET
ajst-28818	39	45	heave	heave	PROPN
ajst-28818	39	46	motion	motion	NOUN
ajst-28818	39	47	.	.	PUNCT
ajst-28818	40	1	xia	xia	PROPN
ajst-28818	40	2	et	et	PROPN
ajst-28818	40	3	al	al	PROPN
ajst-28818	40	4	,	,	PUNCT
ajst-28818	40	5	(	(	PUNCT
ajst-28818	40	6	2019	2019	NUM
ajst-28818	40	7	)	)	PUNCT
ajst-28818	40	8	investigated	investigate	VERB
ajst-28818	40	9	various	various	ADJ
ajst-28818	40	10	loads	load	NOUN
ajst-28818	40	11	in	in	ADP
ajst-28818	40	12	riserless	riserless	NOUN
ajst-28818	40	13	drilling	drilling	NOUN
ajst-28818	40	14	and	and	CCONJ
ajst-28818	40	15	pointed	point	VERB
ajst-28818	40	16	out	out	ADP
ajst-28818	40	17	that	that	SCONJ
ajst-28818	40	18	the	the	DET
ajst-28818	40	19	variable	variable	ADJ
ajst-28818	40	20	load	load	NOUN
ajst-28818	40	21	was	be	AUX
ajst-28818	40	22	significantly	significantly	ADV
ajst-28818	40	23	reduced	reduce	VERB
ajst-28818	40	24	after	after	SCONJ
ajst-28818	40	25	the	the	DET
ajst-28818	40	26	drilling	drilling	NOUN
ajst-28818	40	27	platform	platform	NOUN
ajst-28818	40	28	was	be	AUX
ajst-28818	40	29	equipped	equip	VERB
ajst-28818	40	30	with	with	ADP
ajst-28818	40	31	riserless	riserless	NOUN
ajst-28818	40	32	drilling	drilling	NOUN
ajst-28818	40	33	technology	technology	NOUN
ajst-28818	40	34	,	,	PUNCT
ajst-28818	40	35	up	up	ADP
ajst-28818	40	36	to	to	PART
ajst-28818	40	37	more	more	ADJ
ajst-28818	40	38	than	than	ADP
ajst-28818	40	39	50	50	NUM
ajst-28818	40	40	%	%	NOUN
ajst-28818	40	41	.	.	PUNCT
ajst-28818	41	1	su	su	PROPN
ajst-28818	41	2	et	et	PROPN
ajst-28818	41	3	al	al	PROPN
ajst-28818	41	4	,	,	PUNCT
ajst-28818	41	5	(	(	PUNCT
ajst-28818	41	6	2013	2013	NUM
ajst-28818	41	7	)	)	PUNCT
ajst-28818	41	8	established	establish	VERB
ajst-28818	41	9	a	a	DET
ajst-28818	41	10	lateral	lateral	ADJ
ajst-28818	41	11	vibration	vibration	NOUN
ajst-28818	41	12	model	model	NOUN
ajst-28818	41	13	of	of	ADP
ajst-28818	41	14	seawater	seawater	NOUN
ajst-28818	41	15	section	section	NOUN
ajst-28818	41	16	riserless	riserless	NOUN
ajst-28818	41	17	drill	drill	NOUN
ajst-28818	41	18	-	-	PUNCT
ajst-28818	41	19	string	string	NOUN
ajst-28818	41	20	under	under	ADP
ajst-28818	41	21	the	the	DET
ajst-28818	41	22	combined	combine	VERB
ajst-28818	41	23	excitation	excitation	NOUN
ajst-28818	41	24	of	of	ADP
ajst-28818	41	25	wave	wave	NOUN
ajst-28818	41	26	current	current	ADJ
ajst-28818	41	27	and	and	CCONJ
ajst-28818	41	28	platform	platform	NOUN
ajst-28818	41	29	motion	motion	NOUN
ajst-28818	41	30	,	,	PUNCT
ajst-28818	41	31	and	and	CCONJ
ajst-28818	41	32	analyzed	analyze	VERB
ajst-28818	41	33	the	the	DET
ajst-28818	41	34	effects	effect	NOUN
ajst-28818	41	35	of	of	ADP
ajst-28818	41	36	platform	platform	NOUN
ajst-28818	41	37	drift	drift	NOUN
ajst-28818	41	38	,	,	PUNCT
ajst-28818	41	39	drill	drill	NOUN
ajst-28818	41	40	-	-	PUNCT
ajst-28818	41	41	string	string	NOUN
ajst-28818	41	42	size	size	NOUN
ajst-28818	41	43	,	,	PUNCT
ajst-28818	41	44	and	and	CCONJ
ajst-28818	41	45	drill	drill	NOUN
ajst-28818	41	46	-	-	PUNCT
ajst-28818	41	47	string	string	NOUN
ajst-28818	41	48	length	length	NOUN
ajst-28818	41	49	on	on	ADP
ajst-28818	41	50	the	the	DET
ajst-28818	41	51	dynamic	dynamic	ADJ
ajst-28818	41	52	stress	stress	NOUN
ajst-28818	41	53	in	in	ADP
ajst-28818	41	54	the	the	DET
ajst-28818	41	55	drill	drill	NOUN
ajst-28818	41	56	-	-	PUNCT
ajst-28818	41	57	string	string	NOUN
ajst-28818	41	58	.	.	PUNCT
ajst-28818	42	1	robello	robello	PROPN
ajst-28818	42	2	(	(	PUNCT
ajst-28818	42	3	2013	2013	NUM
ajst-28818	42	4	)	)	PUNCT
ajst-28818	42	5	established	establish	VERB
ajst-28818	42	6	a	a	DET
ajst-28818	42	7	nonlinear	nonlinear	ADJ
ajst-28818	42	8	dynamic	dynamic	ADJ
ajst-28818	42	9	model	model	NOUN
ajst-28818	42	10	of	of	ADP
ajst-28818	42	11	drill	drill	NOUN
ajst-28818	42	12	-	-	PUNCT
ajst-28818	42	13	string	string	NOUN
ajst-28818	42	14	in	in	ADP
ajst-28818	42	15	deepwater	deepwater	NOUN
ajst-28818	42	16	highly	highly	ADV
ajst-28818	42	17	deviated	deviated	ADJ
ajst-28818	42	18	well	well	ADV
ajst-28818	42	19	and	and	CCONJ
ajst-28818	42	20	investigated	investigate	VERB
ajst-28818	42	21	the	the	DET
ajst-28818	42	22	influence	influence	NOUN
ajst-28818	42	23	of	of	ADP
ajst-28818	42	24	mud	mud	NOUN
ajst-28818	42	25	depth	depth	NOUN
ajst-28818	42	26	,	,	PUNCT
ajst-28818	42	27	platform	platform	NOUN
ajst-28818	42	28	drift	drift	NOUN
ajst-28818	42	29	,	,	PUNCT
ajst-28818	42	30	borehole	borehole	NOUN
ajst-28818	42	31	inclination	inclination	NOUN
ajst-28818	42	32	angle	angle	NOUN
ajst-28818	42	33	and	and	CCONJ
ajst-28818	42	34	azimuth	azimuth	NOUN
ajst-28818	42	35	angle	angle	NOUN
ajst-28818	42	36	on	on	ADP
ajst-28818	42	37	the	the	DET
ajst-28818	42	38	drilling	drilling	NOUN
ajst-28818	42	39	string	string	NOUN
ajst-28818	42	40	vibration	vibration	NOUN
ajst-28818	42	41	response	response	NOUN
ajst-28818	42	42	and	and	CCONJ
ajst-28818	42	43	pointed	point	VERB
ajst-28818	42	44	out	out	ADP
ajst-28818	42	45	that	that	SCONJ
ajst-28818	42	46	large	large	ADJ
ajst-28818	42	47	vibration	vibration	NOUN
ajst-28818	42	48	of	of	ADP
ajst-28818	42	49	drilling	drilling	NOUN
ajst-28818	42	50	string	string	NOUN
ajst-28818	42	51	can	can	AUX
ajst-28818	42	52	be	be	AUX
ajst-28818	42	53	avoided	avoid	VERB
ajst-28818	42	54	by	by	ADP
ajst-28818	42	55	changing	change	VERB
ajst-28818	42	56	excitation	excitation	NOUN
ajst-28818	42	57	parameters	parameter	NOUN
ajst-28818	42	58	.	.	PUNCT
ajst-28818	43	1	in	in	ADP
ajst-28818	43	2	view	view	NOUN
ajst-28818	43	3	of	of	ADP
ajst-28818	43	4	the	the	DET
ajst-28818	43	5	lack	lack	NOUN
ajst-28818	43	6	of	of	ADP
ajst-28818	43	7	studies	study	NOUN
ajst-28818	43	8	on	on	ADP
ajst-28818	43	9	drill	drill	NOUN
ajst-28818	43	10	-	-	PUNCT
ajst-28818	43	11	string	string	NOUN
ajst-28818	43	12	dynamics	dynamic	NOUN
ajst-28818	43	13	in	in	ADP
ajst-28818	43	14	deep	deep	ADJ
ajst-28818	43	15	-	-	PUNCT
ajst-28818	43	16	water	water	NOUN
ajst-28818	43	17	riserless	riserless	NOUN
ajst-28818	43	18	drilling	drilling	NOUN
ajst-28818	43	19	,	,	PUNCT
ajst-28818	43	20	in	in	ADP
ajst-28818	43	21	this	this	DET
ajst-28818	43	22	paper	paper	NOUN
ajst-28818	43	23	,	,	PUNCT
ajst-28818	43	24	we	we	PRON
ajst-28818	43	25	derive	derive	VERB
ajst-28818	43	26	alt	alt	NOUN
ajst-28818	43	27	bidirectionally	bidirectionally	ADV
ajst-28818	43	28	coupled	couple	VERB
ajst-28818	43	29	nonlinear	nonlinear	ADJ
ajst-28818	43	30	drill	drill	NOUN
ajst-28818	43	31	-	-	PUNCT
ajst-28818	43	32	string	string	NOUN
ajst-28818	43	33	elements	element	NOUN
ajst-28818	43	34	suitable	suitable	ADJ
ajst-28818	43	35	for	for	ADP
ajst-28818	43	36	rmr	rmr	PROPN
ajst-28818	43	37	drill	drill	PROPN
ajst-28818	43	38	-	-	PUNCT
ajst-28818	43	39	string	string	NOUN
ajst-28818	43	40	using	use	VERB
ajst-28818	43	41	energy	energy	NOUN
ajst-28818	43	42	method	method	NOUN
ajst-28818	43	43	and	and	CCONJ
ajst-28818	43	44	finite	finite	ADJ
ajst-28818	43	45	element	element	NOUN
ajst-28818	43	46	method	method	NOUN
ajst-28818	43	47	,	,	PUNCT
ajst-28818	43	48	and	and	CCONJ
ajst-28818	43	49	propose	propose	VERB
ajst-28818	43	50	a	a	DET
ajst-28818	43	51	solution	solution	NOUN
ajst-28818	43	52	suitable	suitable	ADJ
ajst-28818	43	53	for	for	ADP
ajst-28818	43	54	the	the	DET
ajst-28818	43	55	bidirectionally	bidirectionally	ADV
ajst-28818	43	56	coupled	couple	VERB
ajst-28818	43	57	drill	drill	NOUN
ajst-28818	43	58	-	-	PUNCT
ajst-28818	43	59	string	string	NOUN
ajst-28818	43	60	elements	element	NOUN
ajst-28818	43	61	.	.	PUNCT
ajst-28818	44	1	the	the	DET
ajst-28818	44	2	alt	alt	PROPN
ajst-28818	44	3	coupled	couple	VERB
ajst-28818	44	4	nonlinear	nonlinear	ADJ
ajst-28818	44	5	vibration	vibration	NOUN
ajst-28818	44	6	model	model	NOUN
ajst-28818	44	7	of	of	ADP
ajst-28818	44	8	the	the	DET
ajst-28818	44	9	rmr	rmr	PROPN
ajst-28818	44	10	drill	drill	PROPN
ajst-28818	44	11	-	-	PUNCT
ajst-28818	44	12	string	string	NOUN
ajst-28818	44	13	in	in	ADP
ajst-28818	44	14	deep	deep	ADJ
ajst-28818	44	15	water	water	NOUN
ajst-28818	44	16	is	be	AUX
ajst-28818	44	17	established	establish	VERB
ajst-28818	44	18	by	by	ADP
ajst-28818	44	19	considering	consider	VERB
ajst-28818	44	20	the	the	DET
ajst-28818	44	21	drilling	drilling	NOUN
ajst-28818	44	22	platform	platform	NOUN
ajst-28818	44	23	heave	heave	VERB
ajst-28818	44	24	and	and	CCONJ
ajst-28818	44	25	slow	slow	VERB
ajst-28818	44	26	drift	drift	NOUN
ajst-28818	44	27	motion	motion	NOUN
ajst-28818	44	28	,	,	PUNCT
ajst-28818	44	29	wind	wind	NOUN
ajst-28818	44	30	current	current	NOUN
ajst-28818	44	31	,	,	PUNCT
ajst-28818	44	32	sea	sea	NOUN
ajst-28818	44	33	current	current	ADJ
ajst-28818	44	34	and	and	CCONJ
ajst-28818	44	35	wave	wave	NOUN
ajst-28818	44	36	load	load	NOUN
ajst-28818	44	37	,	,	PUNCT
ajst-28818	44	38	wall	wall	NOUN
ajst-28818	44	39	contact	contact	NOUN
ajst-28818	44	40	and	and	CCONJ
ajst-28818	44	41	drill	drill	NOUN
ajst-28818	44	42	-	-	PUNCT
ajst-28818	44	43	bit	bit	NOUN
ajst-28818	44	44	rock	rock	NOUN
ajst-28818	44	45	interaction	interaction	NOUN
ajst-28818	44	46	.	.	PUNCT
ajst-28818	45	1	we	we	PRON
ajst-28818	45	2	analyze	analyze	VERB
ajst-28818	45	3	the	the	DET
ajst-28818	45	4	impact	impact	NOUN
ajst-28818	45	5	of	of	ADP
ajst-28818	45	6	the	the	DET
ajst-28818	45	7	platform	platform	NOUN
ajst-28818	45	8	heave	heave	VERB
ajst-28818	45	9	and	and	CCONJ
ajst-28818	45	10	slow	slow	VERB
ajst-28818	45	11	drift	drift	NOUN
ajst-28818	45	12	motion	motion	NOUN
ajst-28818	45	13	on	on	ADP
ajst-28818	45	14	the	the	DET
ajst-28818	45	15	drilling	drilling	NOUN
ajst-28818	45	16	operation	operation	NOUN
ajst-28818	45	17	and	and	CCONJ
ajst-28818	45	18	the	the	DET
ajst-28818	45	19	vibration	vibration	NOUN
ajst-28818	45	20	of	of	ADP
ajst-28818	45	21	the	the	DET
ajst-28818	45	22	drillstring	drillstring	NOUN
ajst-28818	45	23	at	at	ADP
ajst-28818	45	24	different	different	ADJ
ajst-28818	45	25	heave	heave	NOUN
ajst-28818	45	26	and	and	CCONJ
ajst-28818	45	27	slow	slow	VERB
ajst-28818	45	28	drift	drift	NOUN
ajst-28818	45	29	motion	motion	NOUN
ajst-28818	45	30	amplitudes	amplitude	NOUN
ajst-28818	45	31	and	and	CCONJ
ajst-28818	45	32	frequencies	frequency	NOUN
ajst-28818	45	33	.	.	PUNCT
ajst-28818	46	1	283	283	NUM
ajst-28818	46	2	2	2	NUM
ajst-28818	46	3	.	.	PUNCT
ajst-28818	46	4	alt	alt	AUX
ajst-28818	46	5	coupled	couple	VERB
ajst-28818	46	6	nonlinear	nonlinear	ADJ
ajst-28818	46	7	vibration	vibration	NOUN
ajst-28818	46	8	model	model	NOUN
ajst-28818	46	9	of	of	ADP
ajst-28818	46	10	drill	drill	NOUN
ajst-28818	46	11	-	-	PUNCT
ajst-28818	46	12	string	string	NOUN
ajst-28818	46	13	the	the	DET
ajst-28818	46	14	drill	drill	NOUN
ajst-28818	46	15	-	-	PUNCT
ajst-28818	46	16	string	string	NOUN
ajst-28818	46	17	continuous	continuous	ADJ
ajst-28818	46	18	system	system	NOUN
ajst-28818	46	19	is	be	AUX
ajst-28818	46	20	discretized	discretize	VERB
ajst-28818	46	21	by	by	ADP
ajst-28818	46	22	finite	finite	ADJ
ajst-28818	46	23	element	element	NOUN
ajst-28818	46	24	method	method	NOUN
ajst-28818	46	25	.	.	PUNCT
ajst-28818	47	1	as	as	SCONJ
ajst-28818	47	2	shown	show	VERB
ajst-28818	47	3	in	in	ADP
ajst-28818	47	4	fig.2	fig.2	PROPN
ajst-28818	47	5	,	,	PUNCT
ajst-28818	47	6	the	the	DET
ajst-28818	47	7	drill	drill	NOUN
ajst-28818	47	8	-	-	PUNCT
ajst-28818	47	9	string	string	NOUN
ajst-28818	47	10	is	be	AUX
ajst-28818	47	11	discrete	discrete	ADJ
ajst-28818	47	12	into	into	ADP
ajst-28818	47	13	n	n	PRON
ajst-28818	47	14	drill	drill	NOUN
ajst-28818	47	15	-	-	PUNCT
ajst-28818	47	16	string	string	NOUN
ajst-28818	47	17	units	unit	NOUN
ajst-28818	47	18	,	,	PUNCT
ajst-28818	47	19	where	where	SCONJ
ajst-28818	47	20	the	the	DET
ajst-28818	47	21	platform	platform	NOUN
ajst-28818	47	22	(	(	PUNCT
ajst-28818	47	23	drill	drill	NOUN
ajst-28818	47	24	ship	ship	NOUN
ajst-28818	47	25	)	)	PUNCT
ajst-28818	47	26	is	be	AUX
ajst-28818	47	27	connected	connect	VERB
ajst-28818	47	28	to	to	ADP
ajst-28818	47	29	the	the	DET
ajst-28818	47	30	upper	upper	ADJ
ajst-28818	47	31	end	end	NOUN
ajst-28818	47	32	of	of	ADP
ajst-28818	47	33	the	the	DET
ajst-28818	47	34	drill	drill	NOUN
ajst-28818	47	35	-	-	PUNCT
ajst-28818	47	36	string	string	NOUN
ajst-28818	47	37	by	by	ADP
ajst-28818	47	38	a	a	DET
ajst-28818	47	39	heave	heave	ADJ
ajst-28818	47	40	compensation	compensation	NOUN
ajst-28818	47	41	device	device	NOUN
ajst-28818	47	42	,	,	PUNCT
ajst-28818	47	43	and	and	CCONJ
ajst-28818	47	44	the	the	DET
ajst-28818	47	45	drill	drill	NOUN
ajst-28818	47	46	bit	bit	NOUN
ajst-28818	47	47	is	be	AUX
ajst-28818	47	48	connected	connect	VERB
ajst-28818	47	49	to	to	ADP
ajst-28818	47	50	the	the	DET
ajst-28818	47	51	lower	low	ADJ
ajst-28818	47	52	node	node	NOUN
ajst-28818	47	53	of	of	ADP
ajst-28818	47	54	the	the	DET
ajst-28818	47	55	nth	nth	PROPN
ajst-28818	47	56	drill	drill	NOUN
ajst-28818	47	57	-	-	PUNCT
ajst-28818	47	58	string	string	NOUN
ajst-28818	47	59	unit	unit	NOUN
ajst-28818	47	60	.	.	PUNCT
ajst-28818	48	1	then	then	ADV
ajst-28818	48	2	the	the	DET
ajst-28818	48	3	equation	equation	NOUN
ajst-28818	48	4	for	for	ADP
ajst-28818	48	5	the	the	DET
ajst-28818	48	6	drill	drill	NOUN
ajst-28818	48	7	-	-	PUNCT
ajst-28818	48	8	string	string	NOUN
ajst-28818	48	9	dynamics	dynamic	NOUN
ajst-28818	48	10	is	be	AUX
ajst-28818	48	11	:	:	PUNCT
ajst-28818	48	12			NOUN
ajst-28818	48	13	md+cd+kd=	md+cd+kd=	NOUN
ajst-28818	48	14	f	f	X
ajst-28818	48	15	(	(	PUNCT
ajst-28818	48	16	1	1	X
ajst-28818	48	17	)	)	PUNCT
ajst-28818	48	18	where	where	SCONJ
ajst-28818	48	19	d	d	NOUN
ajst-28818	48	20	,	,	PUNCT
ajst-28818	48	21	d	d	ADJ
ajst-28818	48	22	,	,	PUNCT
ajst-28818	49	1	d	d	NOUN
ajst-28818	49	2	and	and	CCONJ
ajst-28818	49	3	f	f	PROPN
ajst-28818	49	4	are	be	AUX
ajst-28818	49	5	the	the	DET
ajst-28818	49	6	generalized	generalize	VERB
ajst-28818	49	7	acceleration	acceleration	NOUN
ajst-28818	49	8	array	array	NOUN
ajst-28818	49	9	,	,	PUNCT
ajst-28818	49	10	generalized	generalized	ADJ
ajst-28818	49	11	velocity	velocity	NOUN
ajst-28818	49	12	array	array	NOUN
ajst-28818	49	13	,	,	PUNCT
ajst-28818	49	14	generalized	generalized	ADJ
ajst-28818	49	15	displacement	displacement	NOUN
ajst-28818	49	16	array	array	NOUN
ajst-28818	49	17	,	,	PUNCT
ajst-28818	49	18	and	and	CCONJ
ajst-28818	49	19	load	load	NOUN
ajst-28818	49	20	array	array	NOUN
ajst-28818	49	21	of	of	ADP
ajst-28818	49	22	the	the	DET
ajst-28818	49	23	whole	whole	ADJ
ajst-28818	49	24	drill	drill	NOUN
ajst-28818	49	25	-	-	PUNCT
ajst-28818	49	26	string	string	NOUN
ajst-28818	49	27	system	system	NOUN
ajst-28818	49	28	,	,	PUNCT
ajst-28818	49	29	respectively	respectively	ADV
ajst-28818	49	30	.	.	PUNCT
ajst-28818	50	1	m	m	PROPN
ajst-28818	50	2	,	,	PUNCT
ajst-28818	50	3	c	c	PROPN
ajst-28818	50	4	k	k	PROPN
ajst-28818	50	5	and	and	CCONJ
ajst-28818	50	6	are	be	AUX
ajst-28818	50	7	the	the	DET
ajst-28818	50	8	mass	mass	ADJ
ajst-28818	50	9	matrix	matrix	NOUN
ajst-28818	50	10	,	,	PUNCT
ajst-28818	50	11	damping	damp	VERB
ajst-28818	50	12	matrix	matrix	NOUN
ajst-28818	50	13	,	,	PUNCT
ajst-28818	50	14	and	and	CCONJ
ajst-28818	50	15	stiffness	stiffness	ADJ
ajst-28818	50	16	matrix	matrix	NOUN
ajst-28818	50	17	,	,	PUNCT
ajst-28818	50	18	respectively	respectively	ADV
ajst-28818	50	19	,	,	PUNCT
ajst-28818	50	20	of	of	ADP
ajst-28818	50	21	the	the	DET
ajst-28818	50	22	whole	whole	ADJ
ajst-28818	50	23	drill	drill	NOUN
ajst-28818	50	24	-	-	PUNCT
ajst-28818	50	25	string	string	NOUN
ajst-28818	50	26	system	system	NOUN
ajst-28818	50	27	.	.	PUNCT
ajst-28818	51	1	element	element	NOUN
ajst-28818	51	2	1	1	NUM
ajst-28818	51	3	element	element	NOUN
ajst-28818	51	4	2	2	NUM
ajst-28818	51	5	element	element	NOUN
ajst-28818	51	6	n-1	n-1	NOUN
ajst-28818	51	7	element	element	NOUN
ajst-28818	51	8	n	n	PRON
ajst-28818	51	9	drill	drill	NOUN
ajst-28818	51	10	string	string	NOUN
ajst-28818	51	11	bit	bit	NOUN
ajst-28818	51	12	·	·	PUNCT
ajst-28818	51	13	·	·	PUNCT
ajst-28818	51	14	·	·	PUNCT
ajst-28818	51	15	tk	tk	PROPN
ajst-28818	51	16	tc	tc	NUM
ajst-28818	51	17	tm	tm	PROPN
ajst-28818	51	18	platform	platform	NOUN
ajst-28818	51	19	figure	figure	NOUN
ajst-28818	51	20	2	2	NUM
ajst-28818	51	21	.	.	PUNCT
ajst-28818	51	22	drill	drill	NOUN
ajst-28818	51	23	-	-	PUNCT
ajst-28818	51	24	string	string	NOUN
ajst-28818	51	25	discrete	discrete	ADJ
ajst-28818	51	26	element	element	NOUN
ajst-28818	51	27	system	system	NOUN
ajst-28818	51	28	in	in	ADP
ajst-28818	51	29	this	this	DET
ajst-28818	51	30	paper	paper	NOUN
ajst-28818	51	31	,	,	PUNCT
ajst-28818	51	32	we	we	PRON
ajst-28818	51	33	use	use	VERB
ajst-28818	51	34	two	two	NUM
ajst-28818	51	35	nodal	nodal	ADJ
ajst-28818	51	36	twelve	twelve	NUM
ajst-28818	51	37	degrees	degree	NOUN
ajst-28818	51	38	of	of	ADP
ajst-28818	51	39	freedom	freedom	NOUN
ajst-28818	51	40	drill	drill	NOUN
ajst-28818	51	41	-	-	PUNCT
ajst-28818	51	42	string	string	NOUN
ajst-28818	51	43	elements	element	NOUN
ajst-28818	51	44	.	.	PUNCT
ajst-28818	52	1	as	as	SCONJ
ajst-28818	52	2	shown	show	VERB
ajst-28818	52	3	in	in	ADP
ajst-28818	52	4	fig	fig	NOUN
ajst-28818	52	5	.	.	PUNCT
ajst-28818	53	1	3	3	NUM
ajst-28818	53	2	,	,	PUNCT
ajst-28818	53	3	each	each	DET
ajst-28818	53	4	node	node	NOUN
ajst-28818	53	5	contains	contain	VERB
ajst-28818	53	6	one	one	NUM
ajst-28818	53	7	axial	axial	ADJ
ajst-28818	53	8	displacement	displacement	NOUN
ajst-28818	53	9	w	w	NOUN
ajst-28818	53	10	,	,	PUNCT
ajst-28818	53	11	two	two	NUM
ajst-28818	53	12	lateral	lateral	ADJ
ajst-28818	53	13	displacements	displacement	NOUN
ajst-28818	53	14	u	u	NOUN
ajst-28818	53	15	and	and	CCONJ
ajst-28818	53	16	v	v	NOUN
ajst-28818	53	17	,	,	PUNCT
ajst-28818	53	18	one	one	NUM
ajst-28818	53	19	torsional	torsional	ADJ
ajst-28818	53	20	angle	angle	NOUN
ajst-28818	53	21	z	z	NOUN
ajst-28818	53	22	,	,	PUNCT
ajst-28818	53	23	and	and	CCONJ
ajst-28818	53	24	two	two	NUM
ajst-28818	53	25	transverse	transverse	NOUN
ajst-28818	53	26	rotation	rotation	NOUN
ajst-28818	53	27	angles	angle	VERB
ajst-28818	53	28	x	x	PROPN
ajst-28818	53	29	and	and	CCONJ
ajst-28818	53	30	y	y	NOUN
ajst-28818	53	31	.	.	PUNCT
ajst-28818	54	1	in	in	ADP
ajst-28818	54	2	total	total	NOUN
ajst-28818	54	3	,	,	PUNCT
ajst-28818	54	4	a	a	DET
ajst-28818	54	5	drill	drill	NOUN
ajst-28818	54	6	-	-	PUNCT
ajst-28818	54	7	string	string	NOUN
ajst-28818	54	8	unit	unit	NOUN
ajst-28818	54	9	contains	contain	VERB
ajst-28818	54	10	two	two	NUM
ajst-28818	54	11	nodes	node	NOUN
ajst-28818	54	12	with	with	ADP
ajst-28818	54	13	12	12	NUM
ajst-28818	54	14	degrees	degree	NOUN
ajst-28818	54	15	of	of	ADP
ajst-28818	54	16	freedom	freedom	NOUN
ajst-28818	54	17	.	.	PUNCT
ajst-28818	55	1	1	1	NUM
ajst-28818	55	2	x	x	SYM
ajst-28818	55	3	j	j	PROPN
ajst-28818	55	4	z	z	PROPN
ajst-28818	55	5	u1	u1	PROPN
ajst-28818	55	6	v1	v1	PROPN
ajst-28818	55	7	w1	w1	NOUN
ajst-28818	55	8	v2	v2	NOUN
ajst-28818	55	9	θx1	θx1	INTJ
ajst-28818	55	10	θy1	θy1	PROPN
ajst-28818	55	11	θz1	θz1	VERB
ajst-28818	55	12	u2	u2	PROPN
ajst-28818	55	13	w2	w2	NOUN
ajst-28818	55	14	θx2	θx2	NOUN
ajst-28818	55	15	θy2	θy2	ADV
ajst-28818	55	16	θz2	θz2	NOUN
ajst-28818	55	17	y	y	SYM
ajst-28818	55	18	2	2	NUM
ajst-28818	55	19	figure	figure	NOUN
ajst-28818	55	20	3	3	NUM
ajst-28818	55	21	.	.	PUNCT
ajst-28818	55	22	drill	drill	NOUN
ajst-28818	55	23	-	-	PUNCT
ajst-28818	55	24	string	string	NOUN
ajst-28818	55	25	element	element	NOUN
ajst-28818	55	26	with	with	ADP
ajst-28818	55	27	two	two	NUM
ajst-28818	55	28	nodes	node	NOUN
ajst-28818	55	29	and	and	CCONJ
ajst-28818	55	30	12	12	NUM
ajst-28818	55	31	degrees	degree	NOUN
ajst-28818	55	32	of	of	ADP
ajst-28818	55	33	freedom	freedom	NOUN
ajst-28818	55	34	the	the	DET
ajst-28818	55	35	potential	potential	ADJ
ajst-28818	55	36	energy	energy	NOUN
ajst-28818	55	37	1	1	NUM
ajst-28818	55	38	2	2	NUM
ajst-28818	55	39	12	12	NUM
ajst-28818	55	40	(	(	PUNCT
ajst-28818	55	41	,	,	PUNCT
ajst-28818	55	42	,	,	PUNCT
ajst-28818	55	43	...	...	PUNCT
ajst-28818	55	44	,	,	PUNCT
ajst-28818	55	45	)	)	PUNCT
ajst-28818	55	46	v	v	X
ajst-28818	56	1	d	d	X
ajst-28818	56	2	d	d	PROPN
ajst-28818	56	3	d	d	PROPN
ajst-28818	56	4	of	of	ADP
ajst-28818	56	5	drill	drill	NOUN
ajst-28818	56	6	-	-	PUNCT
ajst-28818	56	7	string	string	NOUN
ajst-28818	56	8	element	element	NOUN
ajst-28818	56	9	is	be	AUX
ajst-28818	56	10	a	a	DET
ajst-28818	56	11	function	function	NOUN
ajst-28818	56	12	of	of	ADP
ajst-28818	56	13	the	the	DET
ajst-28818	56	14	generalized	generalized	ADJ
ajst-28818	56	15	displacement	displacement	NOUN
ajst-28818	56	16	of	of	ADP
ajst-28818	56	17	the	the	DET
ajst-28818	56	18	element	element	NOUN
ajst-28818	56	19	,	,	PUNCT
ajst-28818	56	20	and	and	CCONJ
ajst-28818	56	21	v	v	NOUN
ajst-28818	56	22	is	be	AUX
ajst-28818	56	23	assumed	assume	VERB
ajst-28818	56	24	to	to	PART
ajst-28818	56	25	be	be	AUX
ajst-28818	56	26	zero	zero	NUM
ajst-28818	56	27	at	at	ADP
ajst-28818	56	28	the	the	DET
ajst-28818	56	29	equilibrium	equilibrium	NOUN
ajst-28818	56	30	position	position	NOUN
ajst-28818	56	31	of	of	ADP
ajst-28818	56	32	the	the	DET
ajst-28818	56	33	drill	drill	NOUN
ajst-28818	56	34	-	-	PUNCT
ajst-28818	56	35	string	string	NOUN
ajst-28818	56	36	element	element	NOUN
ajst-28818	56	37	.	.	PUNCT
ajst-28818	57	1	expanding	expand	VERB
ajst-28818	57	2	v	v	NOUN
ajst-28818	57	3	in	in	ADP
ajst-28818	57	4	taylor	taylor	PROPN
ajst-28818	57	5	series	series	NOUN
ajst-28818	57	6	and	and	CCONJ
ajst-28818	57	7	retaining	retain	VERB
ajst-28818	57	8	the	the	DET
ajst-28818	57	9	second	second	ADJ
ajst-28818	57	10	-	-	PUNCT
ajst-28818	57	11	order	order	NOUN
ajst-28818	57	12	small	small	ADJ
ajst-28818	57	13	quantities	quantity	NOUN
ajst-28818	57	14	of	of	ADP
ajst-28818	57	15	the	the	DET
ajst-28818	57	16	generalized	generalized	ADJ
ajst-28818	57	17	shift	shift	NOUN
ajst-28818	57	18	,	,	PUNCT
ajst-28818	57	19	one	one	PRON
ajst-28818	57	20	obtains	obtain	VERB
ajst-28818	57	21	:	:	PUNCT
ajst-28818	58	1	12	12	NUM
ajst-28818	58	2	12	12	NUM
ajst-28818	58	3	1	1	NUM
ajst-28818	58	4	1	1	NUM
ajst-28818	58	5	1	1	NUM
ajst-28818	58	6	2	2	NUM
ajst-28818	58	7	ij	ij	NOUN
ajst-28818	59	1	i	i	NOUN
ajst-28818	59	2	j	j	VERB
ajst-28818	60	1	i	i	PRON
ajst-28818	60	2	j	j	PROPN
ajst-28818	61	1	v	v	INTJ
ajst-28818	61	2	k	k	PROPN
ajst-28818	62	1	d	d	PROPN
ajst-28818	62	2	d	d	PROPN
ajst-28818	62	3			PROPN
ajst-28818	63	1			NUM
ajst-28818	63	2			NOUN
ajst-28818	64	1			PRON
ajst-28818	64	2	(	(	PUNCT
ajst-28818	64	3	2	2	NUM
ajst-28818	64	4	)	)	PUNCT
ajst-28818	64	5	where	where	SCONJ
ajst-28818	64	6	ijk	ijk	PROPN
ajst-28818	64	7	is	be	AUX
ajst-28818	64	8	the	the	DET
ajst-28818	64	9	stiffness	stiffness	ADJ
ajst-28818	64	10	coefficient	coefficient	NOUN
ajst-28818	64	11	and	and	CCONJ
ajst-28818	64	12	is	be	AUX
ajst-28818	64	13	expressed	express	VERB
ajst-28818	64	14	as	as	SCONJ
ajst-28818	64	15	follows	follow	VERB
ajst-28818	64	16	:	:	PUNCT
ajst-28818	64	17	2	2	NUM
ajst-28818	64	18	(	(	PUNCT
ajst-28818	64	19	,	,	PUNCT
ajst-28818	64	20	1	1	NUM
ajst-28818	64	21	,	,	PUNCT
ajst-28818	64	22	2,	2,	NUM
ajst-28818	64	23	...	...	PUNCT
ajst-28818	64	24	,12)ij	,12)ij	PUNCT
ajst-28818	65	1	i	i	PRON
ajst-28818	65	2	j	j	PROPN
ajst-28818	66	1	v	v	INTJ
ajst-28818	66	2	k	k	NOUN
ajst-28818	67	1	i	i	PRON
ajst-28818	67	2	j	j	PROPN
ajst-28818	68	1	d	d	X
ajst-28818	68	2	d	d	PROPN
ajst-28818	68	3			ADJ
ajst-28818	68	4			PROPN
ajst-28818	68	5			PROPN
ajst-28818	68	6			ADJ
ajst-28818	68	7			ADJ
ajst-28818	68	8	(	(	PUNCT
ajst-28818	68	9	3	3	NUM
ajst-28818	68	10	)	)	PUNCT
ajst-28818	68	11	similarly	similarly	ADV
ajst-28818	68	12	,	,	PUNCT
ajst-28818	68	13	the	the	DET
ajst-28818	68	14	kinetic	kinetic	ADJ
ajst-28818	68	15	energy	energy	NOUN
ajst-28818	68	16	1	1	NUM
ajst-28818	68	17	2	2	NUM
ajst-28818	68	18	12	12	NUM
ajst-28818	68	19	(	(	PUNCT
ajst-28818	68	20	,	,	PUNCT
ajst-28818	68	21	,	,	PUNCT
ajst-28818	68	22	...	...	PUNCT
ajst-28818	68	23	,	,	PUNCT
ajst-28818	68	24	)	)	PUNCT
ajst-28818	68	25	t	t	PROPN
ajst-28818	69	1	d	d	X
ajst-28818	69	2	d	d	PROPN
ajst-28818	69	3	d	d	PROPN
ajst-28818	69	4	,	,	PUNCT
ajst-28818	69	5	expressed	express	VERB
ajst-28818	69	6	by	by	ADP
ajst-28818	69	7	the	the	DET
ajst-28818	69	8	generalized	generalized	ADJ
ajst-28818	69	9	displacement	displacement	NOUN
ajst-28818	69	10	of	of	ADP
ajst-28818	69	11	the	the	DET
ajst-28818	69	12	drill	drill	NOUN
ajst-28818	69	13	-	-	PUNCT
ajst-28818	69	14	string	string	NOUN
ajst-28818	69	15	element	element	NOUN
ajst-28818	69	16	,	,	PUNCT
ajst-28818	69	17	and	and	CCONJ
ajst-28818	69	18	the	the	DET
ajst-28818	69	19	mass	mass	ADJ
ajst-28818	69	20	coefficient	coefficient	NOUN
ajst-28818	69	21	ijm	ijm	PROPN
ajst-28818	69	22	can	can	AUX
ajst-28818	69	23	be	be	AUX
ajst-28818	69	24	obtained	obtain	VERB
ajst-28818	69	25	.	.	PUNCT
ajst-28818	70	1	12	12	NUM
ajst-28818	70	2	12	12	NUM
ajst-28818	70	3	1	1	NUM
ajst-28818	70	4	1	1	NUM
ajst-28818	70	5	2	2	NUM
ajst-28818	70	6	1	1	NUM
ajst-28818	70	7	2	2	NUM
ajst-28818	70	8	(	(	PUNCT
ajst-28818	70	9	,	,	PUNCT
ajst-28818	70	10	1	1	NUM
ajst-28818	70	11	,	,	PUNCT
ajst-28818	70	12	2,	2,	NUM
ajst-28818	70	13	...	...	PUNCT
ajst-28818	70	14	,12	,12	PUNCT
ajst-28818	70	15	)	)	PUNCT
ajst-28818	71	1	ij	ij	INTJ
ajst-28818	72	1	i	i	PRON
ajst-28818	72	2	j	j	PROPN
ajst-28818	73	1	i	i	PRON
ajst-28818	73	2	j	j	INTJ
ajst-28818	74	1	ij	ij	INTJ
ajst-28818	75	1	i	i	PRON
ajst-28818	75	2	j	j	PROPN
ajst-28818	76	1	t	t	NOUN
ajst-28818	76	2	m	m	PROPN
ajst-28818	76	3	d	d	PROPN
ajst-28818	77	1	d	d	X
ajst-28818	77	2	t	t	PROPN
ajst-28818	77	3	m	m	VERB
ajst-28818	77	4	i	i	INTJ
ajst-28818	77	5	j	j	PROPN
ajst-28818	78	1	d	d	PROPN
ajst-28818	78	2	d	d	PROPN
ajst-28818	78	3			NOUN
ajst-28818	78	4			NOUN
ajst-28818	78	5			NOUN
ajst-28818	78	6			VERB
ajst-28818	78	7			NUM
ajst-28818	78	8			PROPN
ajst-28818	79	1			NUM
ajst-28818	79	2			PRON
ajst-28818	79	3			NUM
ajst-28818	79	4			PROPN
ajst-28818	79	5			PROPN
ajst-28818	79	6			ADJ
ajst-28818	79	7			ADJ
ajst-28818	79	8			NOUN
ajst-28818	79	9			NOUN
ajst-28818	79	10			NOUN
ajst-28818	79	11	(	(	PUNCT
ajst-28818	79	12	4	4	NUM
ajst-28818	79	13	)	)	PUNCT
ajst-28818	79	14	by	by	ADP
ajst-28818	79	15	introducing	introduce	VERB
ajst-28818	79	16	the	the	DET
ajst-28818	79	17	drill	drill	NOUN
ajst-28818	79	18	-	-	PUNCT
ajst-28818	79	19	string	string	NOUN
ajst-28818	79	20	element	element	NOUN
ajst-28818	79	21	generalized	generalize	VERB
ajst-28818	79	22	displacement	displacement	NOUN
ajst-28818	79	23	array	array	NOUN
ajst-28818	79	24	(	(	PUNCT
ajst-28818	79	25	)	)	PUNCT
ajst-28818	79	26	idd	idd	NOUN
ajst-28818	79	27	,	,	PUNCT
ajst-28818	79	28	the	the	DET
ajst-28818	79	29	stiffness	stiffness	NOUN
ajst-28818	79	30	matrix	matrix	NOUN
ajst-28818	79	31	(	(	PUNCT
ajst-28818	79	32	)	)	PUNCT
ajst-28818	79	33	ijkk	ijkk	NUM
ajst-28818	79	34	,	,	PUNCT
ajst-28818	79	35	and	and	CCONJ
ajst-28818	79	36	the	the	DET
ajst-28818	79	37	mass	mass	ADJ
ajst-28818	79	38	matrix	matrix	NOUN
ajst-28818	79	39	(	(	PUNCT
ajst-28818	79	40	)	)	PUNCT
ajst-28818	79	41	ijmm	ijmm	PROPN
ajst-28818	79	42	,	,	PUNCT
ajst-28818	79	43	the	the	DET
ajst-28818	79	44	potential	potential	ADJ
ajst-28818	79	45	energy	energy	NOUN
ajst-28818	79	46	v	v	NOUN
ajst-28818	79	47	and	and	CCONJ
ajst-28818	79	48	kinetic	kinetic	ADJ
ajst-28818	79	49	energy	energy	NOUN
ajst-28818	79	50	t	t	PROPN
ajst-28818	79	51	of	of	ADP
ajst-28818	79	52	drill	drill	NOUN
ajst-28818	79	53	-	-	PUNCT
ajst-28818	79	54	string	string	NOUN
ajst-28818	79	55	element	element	NOUN
ajst-28818	79	56	can	can	AUX
ajst-28818	79	57	be	be	AUX
ajst-28818	79	58	expressed	express	VERB
ajst-28818	79	59	as	as	ADP
ajst-28818	79	60	:	:	PUNCT
ajst-28818	79	61	t	t	PROPN
ajst-28818	79	62	t	t	PROPN
ajst-28818	79	63	1	1	NUM
ajst-28818	79	64	2	2	NUM
ajst-28818	79	65	1	1	NUM
ajst-28818	79	66	2	2	NUM
ajst-28818	79	67	v	v	ADP
ajst-28818	79	68	t	t	NOUN
ajst-28818	79	69			NOUN
ajst-28818	79	70			VERB
ajst-28818	80	1			NUM
ajst-28818	80	2			NUM
ajst-28818	80	3			NOUN
ajst-28818	80	4			PROPN
ajst-28818	80	5	d	d	X
ajst-28818	80	6	kd	kd	PROPN
ajst-28818	80	7	d	d	PROPN
ajst-28818	80	8	md	md	PROPN
ajst-28818	80	9			NOUN
ajst-28818	80	10	(	(	PUNCT
ajst-28818	80	11	5	5	NUM
ajst-28818	80	12	)	)	PUNCT
ajst-28818	80	13	therefore	therefore	ADV
ajst-28818	80	14	,	,	PUNCT
ajst-28818	80	15	the	the	DET
ajst-28818	80	16	element	element	ADJ
ajst-28818	80	17	stiffness	stiffness	NOUN
ajst-28818	80	18	matrix	matrix	NOUN
ajst-28818	80	19	and	and	CCONJ
ajst-28818	80	20	the	the	DET
ajst-28818	80	21	element	element	NOUN
ajst-28818	80	22	mass	mass	NOUN
ajst-28818	80	23	matrix	matrix	NOUN
ajst-28818	80	24	can	can	AUX
ajst-28818	80	25	be	be	AUX
ajst-28818	80	26	obtained	obtain	VERB
ajst-28818	80	27	by	by	ADP
ajst-28818	80	28	obtaining	obtain	VERB
ajst-28818	80	29	the	the	DET
ajst-28818	80	30	expressions	expression	NOUN
ajst-28818	80	31	of	of	ADP
ajst-28818	80	32	potential	potential	ADJ
ajst-28818	80	33	energy	energy	NOUN
ajst-28818	80	34	and	and	CCONJ
ajst-28818	80	35	kinetic	kinetic	ADJ
ajst-28818	80	36	energy	energy	NOUN
ajst-28818	80	37	of	of	ADP
ajst-28818	80	38	the	the	DET
ajst-28818	80	39	drill	drill	NOUN
ajst-28818	80	40	-	-	PUNCT
ajst-28818	80	41	string	string	NOUN
ajst-28818	80	42	element	element	NOUN
ajst-28818	80	43	.	.	PUNCT
ajst-28818	81	1	fig	fig	NOUN
ajst-28818	81	2	.	.	PUNCT
ajst-28818	82	1	4	4	NUM
ajst-28818	82	2	(	(	PUNCT
ajst-28818	82	3	a	a	X
ajst-28818	82	4	)	)	PUNCT
ajst-28818	82	5	three	three	NUM
ajst-28818	82	6	-	-	PUNCT
ajst-28818	82	7	dimensional	dimensional	ADJ
ajst-28818	82	8	cartesian	cartesian	ADJ
ajst-28818	82	9	coordinate	coordinate	NOUN
ajst-28818	82	10	system	system	NOUN
ajst-28818	82	11	was	be	AUX
ajst-28818	82	12	established	establish	VERB
ajst-28818	82	13	.	.	PUNCT
ajst-28818	83	1	the	the	DET
ajst-28818	83	2	center	center	NOUN
ajst-28818	83	3	of	of	ADP
ajst-28818	83	4	the	the	DET
ajst-28818	83	5	upper	upper	ADJ
ajst-28818	83	6	end	end	NOUN
ajst-28818	83	7	of	of	ADP
ajst-28818	83	8	the	the	DET
ajst-28818	83	9	drill	drill	NOUN
ajst-28818	83	10	-	-	PUNCT
ajst-28818	83	11	string	string	NOUN
ajst-28818	83	12	is	be	AUX
ajst-28818	83	13	the	the	DET
ajst-28818	83	14	origin	origin	NOUN
ajst-28818	83	15	of	of	ADP
ajst-28818	83	16	the	the	DET
ajst-28818	83	17	coordinate	coordinate	NOUN
ajst-28818	83	18	,	,	PUNCT
ajst-28818	83	19	and	and	CCONJ
ajst-28818	83	20	the	the	DET
ajst-28818	83	21	axis	axis	NOUN
ajst-28818	83	22	is	be	AUX
ajst-28818	83	23	oriented	orient	VERB
ajst-28818	83	24	vertically	vertically	ADV
ajst-28818	83	25	downward	downward	ADJ
ajst-28818	83	26	,	,	PUNCT
ajst-28818	83	27	consistent	consistent	ADJ
ajst-28818	83	28	with	with	ADP
ajst-28818	83	29	the	the	DET
ajst-28818	83	30	direction	direction	NOUN
ajst-28818	83	31	of	of	ADP
ajst-28818	83	32	gravity	gravity	NOUN
ajst-28818	83	33	.	.	PUNCT
ajst-28818	84	1	the	the	DET
ajst-28818	84	2	structure	structure	NOUN
ajst-28818	84	3	and	and	CCONJ
ajst-28818	84	4	forces	force	NOUN
ajst-28818	84	5	of	of	ADP
ajst-28818	84	6	the	the	DET
ajst-28818	84	7	rmr	rmr	PROPN
ajst-28818	84	8	drill	drill	PROPN
ajst-28818	84	9	-	-	PUNCT
ajst-28818	84	10	string	string	NOUN
ajst-28818	84	11	are	be	AUX
ajst-28818	84	12	extremely	extremely	ADV
ajst-28818	84	13	complex	complex	ADJ
ajst-28818	84	14	.	.	PUNCT
ajst-28818	85	1	to	to	PART
ajst-28818	85	2	facilitate	facilitate	VERB
ajst-28818	85	3	the	the	DET
ajst-28818	85	4	derivation	derivation	NOUN
ajst-28818	85	5	of	of	ADP
ajst-28818	85	6	the	the	DET
ajst-28818	85	7	kinetic	kinetic	ADJ
ajst-28818	85	8	and	and	CCONJ
ajst-28818	85	9	potential	potential	ADJ
ajst-28818	85	10	energy	energy	NOUN
ajst-28818	85	11	equations	equation	NOUN
ajst-28818	85	12	for	for	ADP
ajst-28818	85	13	the	the	DET
ajst-28818	85	14	drill	drill	NOUN
ajst-28818	85	15	-	-	PUNCT
ajst-28818	85	16	string	string	NOUN
ajst-28818	85	17	element	element	NOUN
ajst-28818	85	18	,	,	PUNCT
ajst-28818	85	19	the	the	DET
ajst-28818	85	20	following	follow	VERB
ajst-28818	85	21	assumptions	assumption	NOUN
ajst-28818	85	22	are	be	AUX
ajst-28818	85	23	made	make	VERB
ajst-28818	85	24	:	:	PUNCT
ajst-28818	85	25	(	(	PUNCT
ajst-28818	85	26	1	1	X
ajst-28818	85	27	)	)	PUNCT
ajst-28818	85	28	the	the	DET
ajst-28818	85	29	cross	cross	NOUN
ajst-28818	85	30	section	section	NOUN
ajst-28818	85	31	of	of	ADP
ajst-28818	85	32	the	the	DET
ajst-28818	85	33	drill	drill	NOUN
ajst-28818	85	34	-	-	PUNCT
ajst-28818	85	35	string	string	NOUN
ajst-28818	85	36	is	be	AUX
ajst-28818	85	37	a	a	DET
ajst-28818	85	38	ring	ring	NOUN
ajst-28818	85	39	,	,	PUNCT
ajst-28818	85	40	and	and	CCONJ
ajst-28818	85	41	each	each	DET
ajst-28818	85	42	position	position	NOUN
ajst-28818	85	43	can	can	AUX
ajst-28818	85	44	have	have	VERB
ajst-28818	85	45	any	any	DET
ajst-28818	85	46	geometric	geometric	ADJ
ajst-28818	85	47	size	size	NOUN
ajst-28818	85	48	and	and	CCONJ
ajst-28818	85	49	material	material	NOUN
ajst-28818	85	50	properties	property	NOUN
ajst-28818	85	51	,	,	PUNCT
ajst-28818	85	52	but	but	CCONJ
ajst-28818	85	53	each	each	DET
ajst-28818	85	54	segment	segment	NOUN
ajst-28818	85	55	remains	remain	VERB
ajst-28818	85	56	constant	constant	ADJ
ajst-28818	85	57	.	.	PUNCT
ajst-28818	86	1	(	(	PUNCT
ajst-28818	86	2	2	2	X
ajst-28818	86	3	)	)	PUNCT
ajst-28818	86	4	the	the	DET
ajst-28818	86	5	effect	effect	NOUN
ajst-28818	86	6	of	of	ADP
ajst-28818	86	7	the	the	DET
ajst-28818	86	8	drill	drill	NOUN
ajst-28818	86	9	-	-	PUNCT
ajst-28818	86	10	string	string	NOUN
ajst-28818	86	11	joints	joint	NOUN
ajst-28818	86	12	is	be	AUX
ajst-28818	86	13	neglected	neglect	VERB
ajst-28818	86	14	.	.	PUNCT
ajst-28818	87	1	(	(	PUNCT
ajst-28818	87	2	3	3	X
ajst-28818	87	3	)	)	PUNCT
ajst-28818	87	4	the	the	DET
ajst-28818	87	5	upper	upper	ADJ
ajst-28818	87	6	end	end	NOUN
ajst-28818	87	7	of	of	ADP
ajst-28818	87	8	the	the	DET
ajst-28818	87	9	drill	drill	NOUN
ajst-28818	87	10	-	-	PUNCT
ajst-28818	87	11	string	string	NOUN
ajst-28818	87	12	rotates	rotate	NOUN
ajst-28818	87	13	at	at	ADP
ajst-28818	87	14	a	a	DET
ajst-28818	87	15	constant	constant	ADJ
ajst-28818	87	16	speed	speed	NOUN
ajst-28818	87	17	.	.	PUNCT
ajst-28818	88	1	(	(	PUNCT
ajst-28818	88	2	4	4	X
ajst-28818	88	3	)	)	PUNCT
ajst-28818	88	4	the	the	DET
ajst-28818	88	5	contact	contact	NOUN
ajst-28818	88	6	between	between	ADP
ajst-28818	88	7	drill	drill	NOUN
ajst-28818	88	8	-	-	PUNCT
ajst-28818	88	9	string	string	NOUN
ajst-28818	88	10	and	and	CCONJ
ajst-28818	88	11	borehole	borehole	NOUN
ajst-28818	88	12	wall	wall	NOUN
ajst-28818	88	13	is	be	AUX
ajst-28818	88	14	regarded	regard	VERB
ajst-28818	88	15	as	as	ADP
ajst-28818	88	16	elastic	elastic	ADJ
ajst-28818	88	17	collision	collision	NOUN
ajst-28818	88	18	.	.	PUNCT
ajst-28818	89	1	284	284	NUM
ajst-28818	89	2	o1	o1	NOUN
ajst-28818	89	3	x	x	SYM
ajst-28818	89	4	y	y	NOUN
ajst-28818	89	5			PROPN
ajst-28818	89	6	,	,	PUNCT
ajst-28818	89	7	r	r	NOUN
ajst-28818	89	8			NOUN
ajst-28818	89	9	（	（	PUNCT
ajst-28818	89	10	）	）	PUNCT
ajst-28818	89	11	,	,	PUNCT
ajst-28818	89	12	r	r	NOUN
ajst-28818	89	13			X
ajst-28818	89	14			PROPN
ajst-28818	89	15	（	（	PROPN
ajst-28818	89	16	）	）	PUNCT
ajst-28818	90	1	y	y	PROPN
ajst-28818	90	2	z	z	PROPN
ajst-28818	90	3	o1	o1	PROPN
ajst-28818	90	4	u	u	NOUN
ajst-28818	90	5	v	v	NOUN
ajst-28818	90	6	x	x	PROPN
ajst-28818	90	7	w	w	PROPN
ajst-28818	90	8	o2	o2	PROPN
ajst-28818	90	9	o2	o2	PROPN
ajst-28818	90	10	(	(	PUNCT
ajst-28818	90	11	a	a	NOUN
ajst-28818	90	12	)	)	PUNCT
ajst-28818	90	13	(	(	PUNCT
ajst-28818	90	14	b	b	X
ajst-28818	90	15	)	)	PUNCT
ajst-28818	90	16	figure	figure	NOUN
ajst-28818	90	17	4	4	NUM
ajst-28818	90	18	.	.	PUNCT
ajst-28818	91	1	(	(	PUNCT
ajst-28818	91	2	a	a	X
ajst-28818	91	3	)	)	PUNCT
ajst-28818	91	4	3d	3d	PROPN
ajst-28818	91	5	coordinates	coordinate	NOUN
ajst-28818	91	6	of	of	ADP
ajst-28818	91	7	drill	drill	NOUN
ajst-28818	91	8	-	-	PUNCT
ajst-28818	91	9	string	string	NOUN
ajst-28818	91	10	system	system	NOUN
ajst-28818	91	11	;	;	PUNCT
ajst-28818	91	12	(	(	PUNCT
ajst-28818	91	13	b	b	X
ajst-28818	91	14	)	)	PUNCT
ajst-28818	91	15	sketch	sketch	NOUN
ajst-28818	91	16	of	of	ADP
ajst-28818	91	17	drill	drill	NOUN
ajst-28818	91	18	-	-	PUNCT
ajst-28818	91	19	string	string	NOUN
ajst-28818	91	20	cross	cross	PROPN
ajst-28818	91	21	section	section	PROPN
ajst-28818	91	22	figure	figure	NOUN
ajst-28818	91	23	4	4	NUM
ajst-28818	91	24	(	(	PUNCT
ajst-28818	91	25	b	b	NOUN
ajst-28818	91	26	)	)	PUNCT
ajst-28818	91	27	is	be	AUX
ajst-28818	91	28	the	the	DET
ajst-28818	91	29	schematic	schematic	ADJ
ajst-28818	91	30	diagram	diagram	NOUN
ajst-28818	91	31	of	of	ADP
ajst-28818	91	32	the	the	DET
ajst-28818	91	33	torsion	torsion	NOUN
ajst-28818	91	34	deformation	deformation	NOUN
ajst-28818	91	35	of	of	ADP
ajst-28818	91	36	the	the	DET
ajst-28818	91	37	drill	drill	NOUN
ajst-28818	91	38	-	-	PUNCT
ajst-28818	91	39	string	string	NOUN
ajst-28818	91	40	,	,	PUNCT
ajst-28818	91	41	and	and	CCONJ
ajst-28818	91	42	2o	2o	NOUN
ajst-28818	91	43	is	be	AUX
ajst-28818	91	44	the	the	DET
ajst-28818	91	45	section	section	NOUN
ajst-28818	91	46	centroid	centroid	NOUN
ajst-28818	91	47	.	.	PUNCT
ajst-28818	92	1	1o	1o	PROPN
ajst-28818	92	2	is	be	AUX
ajst-28818	92	3	the	the	DET
ajst-28818	92	4	initial	initial	ADJ
ajst-28818	92	5	position	position	NOUN
ajst-28818	92	6	of	of	ADP
ajst-28818	92	7	the	the	DET
ajst-28818	92	8	drill	drill	NOUN
ajst-28818	92	9	-	-	PUNCT
ajst-28818	92	10	string	string	NOUN
ajst-28818	92	11	axis	axis	NOUN
ajst-28818	92	12	;	;	PUNCT
ajst-28818	92	13	,	,	PUNCT
ajst-28818	92	14	z	z	PROPN
ajst-28818	92	15	z	z	PROPN
ajst-28818	92	16	t	t	PROPN
ajst-28818	92	17	（	（	PROPN
ajst-28818	93	1	）	）	PUNCT
ajst-28818	93	2	is	be	AUX
ajst-28818	93	3	the	the	DET
ajst-28818	93	4	torsional	torsional	ADJ
ajst-28818	93	5	angular	angular	ADJ
ajst-28818	93	6	displacement	displacement	NOUN
ajst-28818	93	7	of	of	ADP
ajst-28818	93	8	the	the	DET
ajst-28818	93	9	cross	cross	NOUN
ajst-28818	93	10	section	section	PROPN
ajst-28818	93	11	,	,	PUNCT
ajst-28818	93	12	rad	rad	PROPN
ajst-28818	93	13	.	.	PROPN
ajst-28818	94	1	then	then	ADV
ajst-28818	94	2	the	the	DET
ajst-28818	94	3	relative	relative	ADJ
ajst-28818	94	4	torsional	torsional	ADJ
ajst-28818	94	5	angular	angular	ADJ
ajst-28818	94	6	displacement	displacement	NOUN
ajst-28818	94	7	of	of	ADP
ajst-28818	94	8	any	any	DET
ajst-28818	94	9	profile	profile	NOUN
ajst-28818	94	10	is	be	AUX
ajst-28818	94	11	z	z	PROPN
ajst-28818	94	12	t	t	PRON
ajst-28818	94	13			PROPN
ajst-28818	94	14			PROPN
ajst-28818	94	15	(	(	PUNCT
ajst-28818	94	16	6	6	NUM
ajst-28818	94	17	)	)	PUNCT
ajst-28818	94	18	where	where	SCONJ
ajst-28818	94	19	,	,	PUNCT
ajst-28818	94	20			PROPN
ajst-28818	94	21	is	be	AUX
ajst-28818	94	22	the	the	DET
ajst-28818	94	23	rotation	rotation	NOUN
ajst-28818	94	24	speed	speed	NOUN
ajst-28818	94	25	of	of	ADP
ajst-28818	94	26	the	the	DET
ajst-28818	94	27	platform	platform	NOUN
ajst-28818	94	28	turntable	turntable	NOUN
ajst-28818	94	29	,	,	PUNCT
ajst-28818	94	30	rad	rad	PROPN
ajst-28818	94	31	/	/	SYM
ajst-28818	94	32	s.	s.	PROPN
ajst-28818	94	33	2.1	2.1	NUM
ajst-28818	94	34	.	.	PUNCT
ajst-28818	95	1	kinetic	kinetic	ADJ
ajst-28818	95	2	energy	energy	NOUN
ajst-28818	95	3	the	the	DET
ajst-28818	95	4	displacements	displacement	NOUN
ajst-28818	95	5	of	of	ADP
ajst-28818	95	6	the	the	DET
ajst-28818	95	7	drill	drill	NOUN
ajst-28818	95	8	-	-	PUNCT
ajst-28818	95	9	string	string	NOUN
ajst-28818	95	10	elements	element	NOUN
ajst-28818	95	11	include	include	VERB
ajst-28818	95	12	translational	translational	ADJ
ajst-28818	95	13	and	and	CCONJ
ajst-28818	95	14	torsional	torsional	ADJ
ajst-28818	95	15	displacements	displacement	NOUN
ajst-28818	95	16	.	.	PUNCT
ajst-28818	96	1	as	as	SCONJ
ajst-28818	96	2	shown	show	VERB
ajst-28818	96	3	in	in	ADP
ajst-28818	96	4	fig	fig	NOUN
ajst-28818	96	5	.	.	PUNCT
ajst-28818	97	1	4	4	NUM
ajst-28818	97	2	(	(	PUNCT
ajst-28818	97	3	a	a	NOUN
ajst-28818	97	4	)	)	PUNCT
ajst-28818	97	5	,	,	PUNCT
ajst-28818	97	6	(	(	PUNCT
ajst-28818	97	7	,	,	PUNCT
ajst-28818	97	8	)	)	PUNCT
ajst-28818	97	9	u	u	PROPN
ajst-28818	97	10	z	z	PROPN
ajst-28818	97	11	t	t	PROPN
ajst-28818	97	12	and	and	CCONJ
ajst-28818	97	13	(	(	PUNCT
ajst-28818	97	14	,	,	PUNCT
ajst-28818	97	15	)	)	PUNCT
ajst-28818	97	16	v	v	NOUN
ajst-28818	97	17	z	z	PROPN
ajst-28818	97	18	t	t	PROPN
ajst-28818	97	19	represent	represent	VERB
ajst-28818	97	20	the	the	DET
ajst-28818	97	21	transverse	transverse	NOUN
ajst-28818	97	22	displacements	displacement	NOUN
ajst-28818	97	23	along	along	ADP
ajst-28818	97	24	the	the	DET
ajst-28818	97	25	x	x	NOUN
ajst-28818	97	26	and	and	CCONJ
ajst-28818	97	27	y	y	PROPN
ajst-28818	97	28	axes	axis	NOUN
ajst-28818	97	29	,	,	PUNCT
ajst-28818	97	30	respectively	respectively	ADV
ajst-28818	97	31	,	,	PUNCT
ajst-28818	97	32	while	while	SCONJ
ajst-28818	97	33	the	the	DET
ajst-28818	97	34	axial	axial	ADJ
ajst-28818	97	35	displacements	displacement	NOUN
ajst-28818	97	36	along	along	ADP
ajst-28818	97	37	the	the	DET
ajst-28818	97	38	z	z	NOUN
ajst-28818	97	39	axis	axis	NOUN
ajst-28818	97	40	are	be	AUX
ajst-28818	97	41	represented	represent	VERB
ajst-28818	97	42	by	by	ADP
ajst-28818	97	43	(	(	PUNCT
ajst-28818	97	44	,	,	PUNCT
ajst-28818	97	45	)	)	PUNCT
ajst-28818	97	46	w	w	PROPN
ajst-28818	97	47	z	z	PROPN
ajst-28818	97	48	t	t	PROPN
ajst-28818	97	49	.	.	PUNCT
ajst-28818	98	1	thus	thus	ADV
ajst-28818	98	2	,	,	PUNCT
ajst-28818	98	3	the	the	DET
ajst-28818	98	4	translational	translational	ADJ
ajst-28818	98	5	displacement	displacement	NOUN
ajst-28818	98	6	of	of	ADP
ajst-28818	98	7	the	the	DET
ajst-28818	98	8	drillstring	drillstring	NOUN
ajst-28818	98	9	element	element	NOUN
ajst-28818	98	10	can	can	AUX
ajst-28818	98	11	be	be	AUX
ajst-28818	98	12	obtained	obtain	VERB
ajst-28818	98	13	.	.	PUNCT
ajst-28818	99	1	cr	cr	PROPN
ajst-28818	99	2	ui	ui	PROPN
ajst-28818	99	3	vj	vj	PROPN
ajst-28818	99	4	wk	wk	PROPN
ajst-28818	99	5			ADV
ajst-28818	99	6			PUNCT
ajst-28818	99	7			PROPN
ajst-28818	99	8			PROPN
ajst-28818	99	9			PROPN
ajst-28818	99	10	(	(	PUNCT
ajst-28818	99	11	7	7	X
ajst-28818	99	12	)	)	PUNCT
ajst-28818	99	13	equation	equation	NOUN
ajst-28818	99	14	(	(	PUNCT
ajst-28818	99	15	7	7	X
ajst-28818	99	16	)	)	PUNCT
ajst-28818	99	17	is	be	AUX
ajst-28818	99	18	applied	apply	VERB
ajst-28818	99	19	to	to	PART
ajst-28818	99	20	obtain	obtain	VERB
ajst-28818	99	21	the	the	DET
ajst-28818	99	22	first	first	ADJ
ajst-28818	99	23	partial	partial	ADJ
ajst-28818	99	24	derivative	derivative	NOUN
ajst-28818	99	25	of	of	ADP
ajst-28818	99	26	time	time	NOUN
ajst-28818	99	27	to	to	PART
ajst-28818	99	28	obtain	obtain	VERB
ajst-28818	99	29	the	the	DET
ajst-28818	99	30	translational	translational	ADJ
ajst-28818	99	31	velocity	velocity	NOUN
ajst-28818	99	32	of	of	ADP
ajst-28818	99	33	the	the	DET
ajst-28818	99	34	element	element	NOUN
ajst-28818	99	35	:	:	PUNCT
ajst-28818	99	36	c	c	PROPN
ajst-28818	99	37	cv	cv	PROPN
ajst-28818	99	38	r	r	NOUN
ajst-28818	99	39	ui	ui	PROPN
ajst-28818	99	40	vj	vj	INTJ
ajst-28818	99	41	wk	wk	PROPN
ajst-28818	100	1			PROPN
ajst-28818	100	2			PROPN
ajst-28818	100	3			PUNCT
ajst-28818	100	4			PROPN
ajst-28818	100	5			PROPN
ajst-28818	100	6			VERB
ajst-28818	100	7			PROPN
ajst-28818	100	8			NOUN
ajst-28818	100	9			NOUN
ajst-28818	100	10			NOUN
ajst-28818	100	11	(	(	PUNCT
ajst-28818	100	12	8)	8)	NUM
ajst-28818	100	13	thus	thus	ADV
ajst-28818	100	14	,	,	PUNCT
ajst-28818	100	15	the	the	DET
ajst-28818	100	16	translational	translational	ADJ
ajst-28818	100	17	kinetic	kinetic	ADJ
ajst-28818	100	18	energy	energy	NOUN
ajst-28818	100	19	ktt	ktt	PROPN
ajst-28818	100	20	of	of	ADP
ajst-28818	100	21	the	the	DET
ajst-28818	100	22	drillstring	drillstring	NOUN
ajst-28818	100	23	element	element	NOUN
ajst-28818	100	24	can	can	AUX
ajst-28818	100	25	be	be	AUX
ajst-28818	100	26	expressed	express	VERB
ajst-28818	100	27	as	as	SCONJ
ajst-28818	100	28	follows	follow	VERB
ajst-28818	100	29	:	:	PUNCT
ajst-28818	100	30			NOUN
ajst-28818	100	31	2	2	ADJ
ajst-28818	100	32	2	2	NUM
ajst-28818	100	33	2	2	NUM
ajst-28818	100	34	2	2	NUM
ajst-28818	100	35	0	0	NUM
ajst-28818	100	36	0	0	NUM
ajst-28818	100	37	1	1	NUM
ajst-28818	100	38	1	1	NUM
ajst-28818	100	39	d	d	NOUN
ajst-28818	100	40	d	d	SYM
ajst-28818	100	41	2	2	NUM
ajst-28818	100	42	2	2	NUM
ajst-28818	100	43	e	e	NOUN
ajst-28818	100	44	el	el	PROPN
ajst-28818	100	45	l	l	PROPN
ajst-28818	100	46	kt	kt	PROPN
ajst-28818	101	1	ct	ct	INTJ
ajst-28818	101	2	av	av	PROPN
ajst-28818	101	3	z	z	PROPN
ajst-28818	102	1	a	a	DET
ajst-28818	102	2	u	u	PROPN
ajst-28818	102	3	v	v	PROPN
ajst-28818	102	4	w	w	PROPN
ajst-28818	102	5	z	z	NUM
ajst-28818	102	6			PROPN
ajst-28818	102	7			PROPN
ajst-28818	102	8			X
ajst-28818	102	9			NUM
ajst-28818	102	10			ADP
ajst-28818	102	11			NOUN
ajst-28818	102	12			NOUN
ajst-28818	102	13			NOUN
ajst-28818	102	14	(	(	PUNCT
ajst-28818	102	15	9	9	NUM
ajst-28818	102	16	)	)	PUNCT
ajst-28818	102	17	where	where	SCONJ
ajst-28818	102	18	,	,	PUNCT
ajst-28818	102	19			ADJ
ajst-28818	102	20	is	be	AUX
ajst-28818	102	21	the	the	DET
ajst-28818	102	22	density	density	NOUN
ajst-28818	102	23	of	of	ADP
ajst-28818	102	24	the	the	DET
ajst-28818	102	25	drill	drill	NOUN
ajst-28818	102	26	-	-	PUNCT
ajst-28818	102	27	string	string	NOUN
ajst-28818	102	28	,	,	PUNCT
ajst-28818	102	29	a	a	PRON
ajst-28818	102	30	is	be	AUX
ajst-28818	102	31	the	the	DET
ajst-28818	102	32	cross	cross	ADJ
ajst-28818	102	33	-	-	ADJ
ajst-28818	102	34	sectional	sectional	ADJ
ajst-28818	102	35	area	area	NOUN
ajst-28818	102	36	of	of	ADP
ajst-28818	102	37	the	the	DET
ajst-28818	102	38	drill	drill	NOUN
ajst-28818	102	39	-	-	PUNCT
ajst-28818	102	40	string	string	PROPN
ajst-28818	102	41	,	,	PUNCT
ajst-28818	102	42	el	el	PROPN
ajst-28818	102	43	is	be	AUX
ajst-28818	102	44	the	the	DET
ajst-28818	102	45	length	length	NOUN
ajst-28818	102	46	of	of	ADP
ajst-28818	102	47	the	the	DET
ajst-28818	102	48	drill	drill	NOUN
ajst-28818	102	49	-	-	PUNCT
ajst-28818	102	50	string	string	NOUN
ajst-28818	102	51	element	element	NOUN
ajst-28818	102	52	.	.	PUNCT
ajst-28818	103	1	the	the	DET
ajst-28818	103	2	rotational	rotational	ADJ
ajst-28818	103	3	kinetic	kinetic	ADJ
ajst-28818	103	4	energy	energy	NOUN
ajst-28818	103	5	of	of	ADP
ajst-28818	103	6	the	the	DET
ajst-28818	103	7	drill	drill	NOUN
ajst-28818	103	8	-	-	PUNCT
ajst-28818	103	9	string	string	NOUN
ajst-28818	103	10	element	element	NOUN
ajst-28818	103	11	is	be	AUX
ajst-28818	103	12	divided	divide	VERB
ajst-28818	103	13	into	into	ADP
ajst-28818	103	14	three	three	NUM
ajst-28818	103	15	parts	part	NOUN
ajst-28818	103	16	,	,	PUNCT
ajst-28818	103	17	namely	namely	ADV
ajst-28818	103	18	the	the	DET
ajst-28818	103	19	rotational	rotational	ADJ
ajst-28818	103	20	kinetic	kinetic	ADJ
ajst-28818	103	21	energy	energy	NOUN
ajst-28818	103	22	around	around	ADP
ajst-28818	103	23	the	the	DET
ajst-28818	103	24	x	x	X
ajst-28818	103	25	,	,	PUNCT
ajst-28818	103	26	y	y	PROPN
ajst-28818	103	27	and	and	CCONJ
ajst-28818	103	28	z	z	NOUN
ajst-28818	103	29	axes	axis	NOUN
ajst-28818	103	30	.	.	PUNCT
ajst-28818	104	1	the	the	DET
ajst-28818	104	2	drill	drill	NOUN
ajst-28818	104	3	-	-	PUNCT
ajst-28818	104	4	string	string	NOUN
ajst-28818	104	5	has	have	VERB
ajst-28818	104	6	a	a	DET
ajst-28818	104	7	circular	circular	ADJ
ajst-28818	104	8	cross	cross	NOUN
ajst-28818	104	9	-	-	NOUN
ajst-28818	104	10	section	section	NOUN
ajst-28818	104	11	,	,	PUNCT
ajst-28818	104	12	so	so	CCONJ
ajst-28818	104	13	the	the	DET
ajst-28818	104	14	moment	moment	NOUN
ajst-28818	104	15	of	of	ADP
ajst-28818	104	16	inertia	inertia	NOUN
ajst-28818	104	17	with	with	ADP
ajst-28818	104	18	respect	respect	NOUN
ajst-28818	104	19	to	to	ADP
ajst-28818	104	20	the	the	DET
ajst-28818	104	21	x	x	NOUN
ajst-28818	104	22	and	and	CCONJ
ajst-28818	104	23	y	y	PROPN
ajst-28818	104	24	axis	axis	NOUN
ajst-28818	104	25	is	be	AUX
ajst-28818	104	26	the	the	DET
ajst-28818	104	27	same	same	ADJ
ajst-28818	104	28	,	,	PUNCT
ajst-28818	104	29	but	but	CCONJ
ajst-28818	104	30	the	the	DET
ajst-28818	104	31	moment	moment	NOUN
ajst-28818	104	32	of	of	ADP
ajst-28818	104	33	inertia	inertia	NOUN
ajst-28818	104	34	with	with	ADP
ajst-28818	104	35	respect	respect	NOUN
ajst-28818	104	36	to	to	ADP
ajst-28818	104	37	the	the	DET
ajst-28818	104	38	z	z	NOUN
ajst-28818	104	39	axis	axis	NOUN
ajst-28818	104	40	is	be	AUX
ajst-28818	104	41	different	different	ADJ
ajst-28818	104	42	.	.	PUNCT
ajst-28818	105	1	the	the	DET
ajst-28818	105	2	drill	drill	NOUN
ajst-28818	105	3	-	-	PUNCT
ajst-28818	105	4	string	string	NOUN
ajst-28818	105	5	element	element	NOUN
ajst-28818	105	6	rotational	rotational	ADJ
ajst-28818	105	7	velocity	velocity	NOUN
ajst-28818	105	8	is	be	AUX
ajst-28818	105	9	denoted	denote	VERB
ajst-28818	105	10	as	as	ADP
ajst-28818	105	11	:	:	PUNCT
ajst-28818	105	12	x	x	SYM
ajst-28818	105	13	y	y	PROPN
ajst-28818	105	14	zi	zi	PROPN
ajst-28818	105	15	j	j	PROPN
ajst-28818	106	1	k	k	X
ajst-28818	107	1			PROPN
ajst-28818	107	2			X
ajst-28818	107	3			X
ajst-28818	107	4			PROPN
ajst-28818	107	5			PUNCT
ajst-28818	107	6			PROPN
ajst-28818	107	7			PROPN
ajst-28818	107	8			PROPN
ajst-28818	107	9	(	(	PUNCT
ajst-28818	107	10	10	10	NUM
ajst-28818	107	11	)	)	PUNCT
ajst-28818	107	12	the	the	DET
ajst-28818	107	13	rotation	rotation	NOUN
ajst-28818	107	14	angle	angle	NOUN
ajst-28818	107	15	of	of	ADP
ajst-28818	107	16	the	the	DET
ajst-28818	107	17	drill	drill	NOUN
ajst-28818	107	18	-	-	PUNCT
ajst-28818	107	19	string	string	NOUN
ajst-28818	107	20	around	around	ADP
ajst-28818	107	21	the	the	DET
ajst-28818	107	22	x	x	NOUN
ajst-28818	107	23	and	and	CCONJ
ajst-28818	107	24	y	y	PROPN
ajst-28818	107	25	axes	axis	NOUN
ajst-28818	107	26	is	be	AUX
ajst-28818	107	27	related	relate	VERB
ajst-28818	107	28	to	to	ADP
ajst-28818	107	29	the	the	DET
ajst-28818	107	30	transverse	transverse	NOUN
ajst-28818	107	31	displacements	displacement	NOUN
ajst-28818	107	32	u	u	NOUN
ajst-28818	107	33	and	and	CCONJ
ajst-28818	107	34	v	v	NOUN
ajst-28818	107	35	as	as	SCONJ
ajst-28818	107	36	follows	follow	VERB
ajst-28818	107	37	.	.	PUNCT
ajst-28818	108	1	tan	tan	PROPN
ajst-28818	108	2	,	,	PUNCT
ajst-28818	108	3	tanx	tanx	VERB
ajst-28818	108	4	y	y	PROPN
ajst-28818	108	5	u	u	PROPN
ajst-28818	108	6	v	v	ADP
ajst-28818	108	7	z	z	NOUN
ajst-28818	108	8	z	z	NOUN
ajst-28818	108	9			X
ajst-28818	109	1			PROPN
ajst-28818	109	2			PROPN
ajst-28818	109	3			PROPN
ajst-28818	109	4			PROPN
ajst-28818	109	5			ADJ
ajst-28818	109	6			NOUN
ajst-28818	109	7	(	(	PUNCT
ajst-28818	109	8	11	11	NUM
ajst-28818	109	9	)	)	PUNCT
ajst-28818	109	10	on	on	ADP
ajst-28818	109	11	the	the	DET
ajst-28818	109	12	other	other	ADJ
ajst-28818	109	13	hand	hand	NOUN
ajst-28818	109	14	,	,	PUNCT
ajst-28818	109	15	in	in	ADP
ajst-28818	109	16	the	the	DET
ajst-28818	109	17	drill	drill	NOUN
ajst-28818	109	18	-	-	PUNCT
ajst-28818	109	19	string	string	NOUN
ajst-28818	109	20	,	,	PUNCT
ajst-28818	109	21	which	which	PRON
ajst-28818	109	22	has	have	VERB
ajst-28818	109	23	a	a	DET
ajst-28818	109	24	extremely	extremely	ADV
ajst-28818	109	25	high	high	ADJ
ajst-28818	109	26	slenderness	slenderness	NOUN
ajst-28818	109	27	ratio	ratio	NOUN
ajst-28818	109	28	,	,	PUNCT
ajst-28818	109	29	the	the	DET
ajst-28818	109	30	angle	angle	NOUN
ajst-28818	109	31	is	be	AUX
ajst-28818	109	32	small	small	ADJ
ajst-28818	109	33	,	,	PUNCT
ajst-28818	109	34	so	so	ADV
ajst-28818	109	35	:	:	PUNCT
ajst-28818	109	36	tan	tan	PROPN
ajst-28818	109	37	,	,	PUNCT
ajst-28818	109	38	tanx	tanx	NOUN
ajst-28818	109	39	x	x	PUNCT
ajst-28818	109	40	y	y	PROPN
ajst-28818	109	41	y	y	PROPN
ajst-28818	109	42	u	u	PROPN
ajst-28818	109	43	v	v	ADP
ajst-28818	109	44	z	z	NOUN
ajst-28818	109	45	z	z	NOUN
ajst-28818	109	46			PROPN
ajst-28818	109	47			X
ajst-28818	109	48			PROPN
ajst-28818	110	1			PROPN
ajst-28818	110	2			PROPN
ajst-28818	110	3			NUM
ajst-28818	110	4			X
ajst-28818	110	5			NOUN
ajst-28818	110	6			PUNCT
ajst-28818	110	7			ADJ
ajst-28818	110	8			NOUN
ajst-28818	110	9	(	(	PUNCT
ajst-28818	110	10	12	12	NUM
ajst-28818	110	11	)	)	PUNCT
ajst-28818	110	12	the	the	DET
ajst-28818	110	13	angular	angular	ADJ
ajst-28818	110	14	velocities	velocity	NOUN
ajst-28818	110	15	x	x	PROPN
ajst-28818	110	16	and	and	CCONJ
ajst-28818	110	17	y	y	NOUN
ajst-28818	110	18	of	of	ADP
ajst-28818	110	19	the	the	DET
ajst-28818	110	20	drill	drill	NOUN
ajst-28818	110	21	-	-	PUNCT
ajst-28818	110	22	string	string	NOUN
ajst-28818	110	23	element	element	NOUN
ajst-28818	110	24	around	around	ADP
ajst-28818	110	25	the	the	DET
ajst-28818	110	26	x	x	NOUN
ajst-28818	110	27	and	and	CCONJ
ajst-28818	110	28	y	y	PROPN
ajst-28818	110	29	axes	axis	NOUN
ajst-28818	110	30	can	can	AUX
ajst-28818	110	31	be	be	AUX
ajst-28818	110	32	obtained	obtain	VERB
ajst-28818	110	33	by	by	ADP
ajst-28818	110	34	computing	compute	VERB
ajst-28818	110	35	the	the	DET
ajst-28818	110	36	first	first	ADJ
ajst-28818	110	37	-	-	PUNCT
ajst-28818	110	38	order	order	NOUN
ajst-28818	110	39	partial	partial	ADJ
ajst-28818	110	40	derivatives	derivative	NOUN
ajst-28818	110	41	of	of	ADP
ajst-28818	110	42	the	the	DET
ajst-28818	110	43	angular	angular	ADJ
ajst-28818	110	44	velocity	velocity	NOUN
ajst-28818	110	45	with	with	ADP
ajst-28818	110	46	respect	respect	NOUN
ajst-28818	110	47	to	to	ADP
ajst-28818	110	48	time	time	NOUN
ajst-28818	110	49	.	.	PUNCT
ajst-28818	111	1	similarly	similarly	ADV
ajst-28818	111	2	,	,	PUNCT
ajst-28818	111	3	the	the	DET
ajst-28818	111	4	angular	angular	ADJ
ajst-28818	111	5	velocity	velocity	NOUN
ajst-28818	111	6	z	z	PROPN
ajst-28818	111	7	of	of	ADP
ajst-28818	111	8	the	the	DET
ajst-28818	111	9	drill	drill	NOUN
ajst-28818	111	10	-	-	PUNCT
ajst-28818	111	11	string	string	NOUN
ajst-28818	111	12	element	element	NOUN
ajst-28818	111	13	around	around	ADP
ajst-28818	111	14	the	the	DET
ajst-28818	111	15	z	z	NOUN
ajst-28818	111	16	axis	axis	NOUN
ajst-28818	111	17	can	can	AUX
ajst-28818	111	18	be	be	AUX
ajst-28818	111	19	obtained	obtain	VERB
ajst-28818	111	20	by	by	ADP
ajst-28818	111	21	computing	compute	VERB
ajst-28818	111	22	the	the	DET
ajst-28818	111	23	first	first	ADJ
ajst-28818	111	24	order	order	NOUN
ajst-28818	111	25	partial	partial	ADJ
ajst-28818	111	26	derivative	derivative	NOUN
ajst-28818	111	27	of	of	ADP
ajst-28818	111	28	the	the	DET
ajst-28818	111	29	twist	twist	NOUN
ajst-28818	111	30	angle	angle	NOUN
ajst-28818	111	31	(	(	PUNCT
ajst-28818	111	32	,	,	PUNCT
ajst-28818	111	33	)	)	PUNCT
ajst-28818	111	34	z	z	NOUN
ajst-28818	111	35	z	z	NOUN
ajst-28818	111	36	t	t	NOUN
ajst-28818	111	37	with	with	ADP
ajst-28818	111	38	respect	respect	NOUN
ajst-28818	111	39	to	to	ADP
ajst-28818	111	40	time	time	NOUN
ajst-28818	111	41	,	,	PUNCT
ajst-28818	111	42	,	,	PUNCT
ajst-28818	111	43	x	x	PUNCT
ajst-28818	111	44	y	y	PROPN
ajst-28818	111	45	z	z	PROPN
ajst-28818	111	46	zu	zu	PROPN
ajst-28818	111	47	v	v	ADP
ajst-28818	111	48			X
ajst-28818	111	49			X
ajst-28818	111	50			X
ajst-28818	111	51			NOUN
ajst-28818	111	52			NUM
ajst-28818	112	1			NUM
ajst-28818	112	2			NOUN
ajst-28818	112	3			NOUN
ajst-28818	112	4			NOUN
ajst-28818	112	5	(	(	PUNCT
ajst-28818	112	6	13	13	NUM
ajst-28818	112	7	)	)	PUNCT
ajst-28818	112	8	where	where	SCONJ
ajst-28818	112	9	,	,	PUNCT
ajst-28818	112	10			PROPN
ajst-28818	112	11			PROPN
ajst-28818	112	12			NOUN
ajst-28818	112	13			PROPN
ajst-28818	112	14	'	'	PART
ajst-28818	112	15	z	z	NOUN
ajst-28818	112	16			PROPN
ajst-28818	113	1			PROPN
ajst-28818	113	2			ADJ
ajst-28818	113	3	,	,	PUNCT
ajst-28818	113	4	similarly	similarly	ADV
ajst-28818	113	5	,	,	PUNCT
ajst-28818	113	6			PROPN
ajst-28818	113	7			SYM
ajst-28818	113	8			NOUN
ajst-28818	113	9			NOUN
ajst-28818	113	10	2	2	NUM
ajst-28818	113	11	2	2	NUM
ajst-28818	113	12	''	''	PUNCT
ajst-28818	113	13	z	z	NOUN
ajst-28818	113	14			PROPN
ajst-28818	114	1			PROPN
ajst-28818	114	2			PROPN
ajst-28818	114	3	.	.	PUNCT
ajst-28818	115	1	by	by	ADP
ajst-28818	115	2	substituting	substitute	VERB
ajst-28818	115	3	equation	equation	NOUN
ajst-28818	115	4	(	(	PUNCT
ajst-28818	115	5	13	13	NUM
ajst-28818	115	6	)	)	PUNCT
ajst-28818	115	7	into	into	ADP
ajst-28818	115	8	equation	equation	NOUN
ajst-28818	115	9	(	(	PUNCT
ajst-28818	115	10	10	10	NUM
ajst-28818	115	11	)	)	PUNCT
ajst-28818	115	12	,	,	PUNCT
ajst-28818	115	13	the	the	DET
ajst-28818	115	14	rotational	rotational	ADJ
ajst-28818	115	15	speed	speed	NOUN
ajst-28818	115	16	of	of	ADP
ajst-28818	115	17	drill	drill	NOUN
ajst-28818	115	18	-	-	PUNCT
ajst-28818	115	19	string	string	NOUN
ajst-28818	115	20	element	element	NOUN
ajst-28818	115	21	can	can	AUX
ajst-28818	115	22	be	be	AUX
ajst-28818	115	23	obtained	obtain	VERB
ajst-28818	115	24	:	:	PUNCT
ajst-28818	115	25	zu	zu	INTJ
ajst-28818	115	26	i	i	PRON
ajst-28818	115	27	v	v	PROPN
ajst-28818	115	28	j	j	PROPN
ajst-28818	115	29	k	k	NOUN
ajst-28818	115	30			PROPN
ajst-28818	115	31			PROPN
ajst-28818	115	32			PROPN
ajst-28818	115	33			VERB
ajst-28818	115	34			PROPN
ajst-28818	115	35			PROPN
ajst-28818	115	36			VERB
ajst-28818	115	37			NOUN
ajst-28818	115	38			NOUN
ajst-28818	115	39	(	(	PUNCT
ajst-28818	115	40	14	14	NUM
ajst-28818	115	41	)	)	PUNCT
ajst-28818	115	42	thus	thus	ADV
ajst-28818	115	43	,	,	PUNCT
ajst-28818	115	44	the	the	DET
ajst-28818	115	45	rotational	rotational	ADJ
ajst-28818	115	46	kinetic	kinetic	ADJ
ajst-28818	115	47	energy	energy	NOUN
ajst-28818	115	48	of	of	ADP
ajst-28818	115	49	the	the	DET
ajst-28818	115	50	drill	drill	NOUN
ajst-28818	115	51	-	-	PUNCT
ajst-28818	115	52	string	string	NOUN
ajst-28818	115	53	element	element	NOUN
ajst-28818	115	54	can	can	AUX
ajst-28818	115	55	be	be	AUX
ajst-28818	115	56	expressed	express	VERB
ajst-28818	115	57	as	as	ADP
ajst-28818	115	58			NOUN
ajst-28818	116	1	2	2	ADJ
ajst-28818	116	2	2	2	NUM
ajst-28818	116	3	2	2	NUM
ajst-28818	116	4	0	0	NUM
ajst-28818	116	5	0	0	NUM
ajst-28818	116	6	0	0	NUM
ajst-28818	116	7	0	0	NUM
ajst-28818	116	8	1	1	NUM
ajst-28818	116	9	1	1	NUM
ajst-28818	116	10	0	0	NUM
ajst-28818	116	11	0	0	NUM
ajst-28818	117	1	d	d	NOUN
ajst-28818	117	2	d	d	SYM
ajst-28818	117	3	2	2	NUM
ajst-28818	117	4	2	2	NUM
ajst-28818	117	5	0	0	NUM
ajst-28818	117	6	0	0	NUM
ajst-28818	117	7	e	e	NOUN
ajst-28818	117	8	e	e	X
ajst-28818	117	9	x	x	X
ajst-28818	117	10	l	l	NOUN
ajst-28818	117	11	l	l	NOUN
ajst-28818	117	12	kr	kr	X
ajst-28818	117	13	x	x	SYM
ajst-28818	117	14	y	y	PROPN
ajst-28818	117	15	z	z	PROPN
ajst-28818	117	16	y	y	PROPN
ajst-28818	117	17	z	z	PROPN
ajst-28818	117	18	z	z	NOUN
ajst-28818	118	1	i	i	PRON
ajst-28818	118	2	t	t	VERB
ajst-28818	119	1	i	i	PRON
ajst-28818	119	2	z	z	VERB
ajst-28818	119	3	iu	iu	ADV
ajst-28818	120	1	iv	iv	INTJ
ajst-28818	121	1	i	i	PRON
ajst-28818	121	2	z	z	VERB
ajst-28818	122	1	i	i	PRON
ajst-28818	122	2			ADV
ajst-28818	122	3			ADP
ajst-28818	122	4			PROPN
ajst-28818	122	5			ADP
ajst-28818	122	6			X
ajst-28818	122	7			X
ajst-28818	122	8			X
ajst-28818	122	9			X
ajst-28818	122	10			ADP
ajst-28818	122	11			PROPN
ajst-28818	122	12			X
ajst-28818	122	13			NOUN
ajst-28818	122	14			VERB
ajst-28818	122	15			X
ajst-28818	122	16			PROPN
ajst-28818	122	17			NOUN
ajst-28818	122	18			PRON
ajst-28818	122	19			PROPN
ajst-28818	122	20			PROPN
ajst-28818	122	21			NOUN
ajst-28818	122	22			NOUN
ajst-28818	122	23			ADP
ajst-28818	122	24			NOUN
ajst-28818	122	25			PROPN
ajst-28818	122	26			NUM
ajst-28818	122	27			PUNCT
ajst-28818	122	28			VERB
ajst-28818	122	29			NOUN
ajst-28818	122	30			PROPN
ajst-28818	122	31			NOUN
ajst-28818	122	32			NOUN
ajst-28818	122	33			NOUN
ajst-28818	122	34			NOUN
ajst-28818	122	35			NUM
ajst-28818	122	36			PROPN
ajst-28818	122	37			PROPN
ajst-28818	122	38			NOUN
ajst-28818	122	39			NUM
ajst-28818	122	40			NOUN
ajst-28818	123	1			NOUN
ajst-28818	123	2			PROPN
ajst-28818	123	3			X
ajst-28818	123	4			ADP
ajst-28818	123	5			NOUN
ajst-28818	123	6			NOUN
ajst-28818	123	7	(	(	PUNCT
ajst-28818	123	8	15	15	NUM
ajst-28818	123	9	)	)	PUNCT
ajst-28818	123	10	where	where	SCONJ
ajst-28818	123	11	,	,	PUNCT
ajst-28818	123	12	i	i	PRON
ajst-28818	123	13	is	be	AUX
ajst-28818	123	14	the	the	DET
ajst-28818	123	15	moment	moment	NOUN
ajst-28818	123	16	of	of	ADP
ajst-28818	123	17	inertia	inertia	NOUN
ajst-28818	123	18	of	of	ADP
ajst-28818	123	19	drill	drill	NOUN
ajst-28818	123	20	-	-	PUNCT
ajst-28818	123	21	string	string	NOUN
ajst-28818	123	22	section	section	NOUN
ajst-28818	123	23	,	,	PUNCT
ajst-28818	123	24	i	i	PRON
ajst-28818	123	25	is	be	AUX
ajst-28818	123	26	the	the	DET
ajst-28818	123	27	polar	polar	ADJ
ajst-28818	123	28	moment	moment	NOUN
ajst-28818	123	29	of	of	ADP
ajst-28818	123	30	inertia	inertia	NOUN
ajst-28818	123	31	of	of	ADP
ajst-28818	123	32	the	the	DET
ajst-28818	123	33	section	section	NOUN
ajst-28818	123	34	therefore	therefore	ADV
ajst-28818	123	35	,	,	PUNCT
ajst-28818	123	36	the	the	DET
ajst-28818	123	37	kinetic	kinetic	ADJ
ajst-28818	123	38	energy	energy	NOUN
ajst-28818	123	39	of	of	ADP
ajst-28818	123	40	the	the	DET
ajst-28818	123	41	drill	drill	NOUN
ajst-28818	123	42	-	-	PUNCT
ajst-28818	123	43	string	string	NOUN
ajst-28818	123	44	element	element	NOUN
ajst-28818	123	45	is	be	AUX
ajst-28818	123	46			NOUN
ajst-28818	123	47			NUM
ajst-28818	123	48			NOUN
ajst-28818	123	49	2	2	ADJ
ajst-28818	124	1	2	2	NUM
ajst-28818	124	2	2	2	NUM
ajst-28818	124	3	2	2	NUM
ajst-28818	124	4	2	2	NUM
ajst-28818	124	5	2	2	NUM
ajst-28818	124	6	0	0	NUM
ajst-28818	124	7	0	0	NUM
ajst-28818	124	8	1	1	NUM
ajst-28818	124	9	1	1	NUM
ajst-28818	124	10	d	d	NOUN
ajst-28818	124	11	d	d	SYM
ajst-28818	124	12	2	2	NUM
ajst-28818	124	13	2	2	NUM
ajst-28818	124	14	e	e	NOUN
ajst-28818	124	15	el	el	PROPN
ajst-28818	124	16	l	l	PROPN
ajst-28818	124	17	kt	kt	PROPN
ajst-28818	124	18	kr	kr	PROPN
ajst-28818	124	19	zt	zt	PROPN
ajst-28818	124	20	t	t	PROPN
ajst-28818	124	21	t	t	PROPN
ajst-28818	124	22	a	a	DET
ajst-28818	124	23	u	u	PROPN
ajst-28818	124	24	v	v	PROPN
ajst-28818	124	25	w	w	PROPN
ajst-28818	124	26	z	z	NOUN
ajst-28818	124	27	iu	iu	ADP
ajst-28818	124	28	iv	iv	ADP
ajst-28818	125	1	i	i	PROPN
ajst-28818	125	2	z	z	PROPN
ajst-28818	125	3			ADP
ajst-28818	125	4			PROPN
ajst-28818	125	5			PROPN
ajst-28818	125	6			PROPN
ajst-28818	125	7			PROPN
ajst-28818	125	8			PROPN
ajst-28818	125	9			PUNCT
ajst-28818	125	10			PUNCT
ajst-28818	125	11			PUNCT
ajst-28818	125	12			NUM
ajst-28818	125	13			PUNCT
ajst-28818	125	14			NOUN
ajst-28818	125	15			NOUN
ajst-28818	125	16			NOUN
ajst-28818	125	17			NOUN
ajst-28818	125	18			NOUN
ajst-28818	125	19	(	(	PUNCT
ajst-28818	125	20	16	16	NUM
ajst-28818	125	21	)	)	PUNCT
ajst-28818	125	22	2.2	2.2	NUM
ajst-28818	125	23	.	.	PUNCT
ajst-28818	126	1	potential	potential	ADJ
ajst-28818	126	2	energy	energy	NOUN
ajst-28818	126	3	in	in	ADP
ajst-28818	126	4	order	order	NOUN
ajst-28818	126	5	to	to	PART
ajst-28818	126	6	derive	derive	VERB
ajst-28818	126	7	the	the	DET
ajst-28818	126	8	potential	potential	ADJ
ajst-28818	126	9	energy	energy	NOUN
ajst-28818	126	10	of	of	ADP
ajst-28818	126	11	the	the	DET
ajst-28818	126	12	drill	drill	NOUN
ajst-28818	126	13	-	-	PUNCT
ajst-28818	126	14	string	string	NOUN
ajst-28818	126	15	element	element	NOUN
ajst-28818	126	16	,	,	PUNCT
ajst-28818	126	17	the	the	DET
ajst-28818	126	18	nonlinear	nonlinear	ADJ
ajst-28818	126	19	geometric	geometric	ADJ
ajst-28818	126	20	equations	equation	NOUN
ajst-28818	126	21	for	for	ADP
ajst-28818	126	22	the	the	DET
ajst-28818	126	23	drill	drill	NOUN
ajst-28818	126	24	-	-	PUNCT
ajst-28818	126	25	string	string	NOUN
ajst-28818	126	26	element	element	NOUN
ajst-28818	126	27	must	must	AUX
ajst-28818	126	28	first	first	ADV
ajst-28818	126	29	be	be	AUX
ajst-28818	126	30	given	give	VERB
ajst-28818	126	31	.	.	PUNCT
ajst-28818	127	1	in	in	ADP
ajst-28818	127	2	the	the	DET
ajst-28818	127	3	derivation	derivation	NOUN
ajst-28818	127	4	,	,	PUNCT
ajst-28818	127	5	the	the	DET
ajst-28818	127	6	drill	drill	NOUN
ajst-28818	127	7	-	-	PUNCT
ajst-28818	127	8	string	string	NOUN
ajst-28818	127	9	motion	motion	NOUN
ajst-28818	127	10	is	be	AUX
ajst-28818	127	11	treated	treat	VERB
ajst-28818	127	12	as	as	ADP
ajst-28818	127	13	the	the	DET
ajst-28818	127	14	combined	combined	ADJ
ajst-28818	127	15	motion	motion	NOUN
ajst-28818	127	16	of	of	ADP
ajst-28818	127	17	translation	translation	NOUN
ajst-28818	127	18	and	and	CCONJ
ajst-28818	127	19	rotation	rotation	NOUN
ajst-28818	127	20	.	.	PUNCT
ajst-28818	128	1	as	as	SCONJ
ajst-28818	128	2	shown	show	VERB
ajst-28818	128	3	in	in	ADP
ajst-28818	128	4	fig	fig	NOUN
ajst-28818	128	5	.	.	PUNCT
ajst-28818	129	1	4	4	NUM
ajst-28818	129	2	(	(	PUNCT
ajst-28818	129	3	b	b	NOUN
ajst-28818	129	4	)	)	PUNCT
ajst-28818	129	5	,	,	PUNCT
ajst-28818	129	6	the	the	DET
ajst-28818	129	7	displacement	displacement	NOUN
ajst-28818	129	8	of	of	ADP
ajst-28818	129	9	any	any	DET
ajst-28818	129	10	point	point	NOUN
ajst-28818	129	11	285	285	NUM
ajst-28818	129	12	in	in	ADP
ajst-28818	129	13	the	the	DET
ajst-28818	129	14	cross	cross	NOUN
ajst-28818	129	15	section	section	NOUN
ajst-28818	129	16	is	be	AUX
ajst-28818	129	17	equal	equal	ADJ
ajst-28818	129	18	to	to	ADP
ajst-28818	129	19	the	the	DET
ajst-28818	129	20	displacement	displacement	NOUN
ajst-28818	129	21	of	of	ADP
ajst-28818	129	22	the	the	DET
ajst-28818	129	23	section	section	NOUN
ajst-28818	129	24	centroid	centroid	NOUN
ajst-28818	129	25	2o	2o	NOUN
ajst-28818	129	26	plus	plus	CCONJ
ajst-28818	129	27	the	the	DET
ajst-28818	129	28	displacement	displacement	NOUN
ajst-28818	129	29	of	of	ADP
ajst-28818	129	30	the	the	DET
ajst-28818	129	31	torsional	torsional	ADJ
ajst-28818	129	32	deformation	deformation	NOUN
ajst-28818	129	33			NOUN
ajst-28818	129	34	,	,	PUNCT
ajst-28818	129	35	so	so	ADV
ajst-28818	129	36	the	the	DET
ajst-28818	129	37	displacements	displacement	NOUN
ajst-28818	129	38	of	of	ADP
ajst-28818	129	39	any	any	DET
ajst-28818	129	40	point	point	NOUN
ajst-28818	129	41			NOUN
ajst-28818	129	42	,r	,r	VERB
ajst-28818	129	43			NOUN
ajst-28818	129	44	on	on	ADP
ajst-28818	129	45	the	the	DET
ajst-28818	129	46	section	section	NOUN
ajst-28818	129	47	along	along	ADP
ajst-28818	129	48	the	the	DET
ajst-28818	129	49	x	x	NOUN
ajst-28818	129	50	and	and	CCONJ
ajst-28818	129	51	y	y	PROPN
ajst-28818	129	52	axes	axis	NOUN
ajst-28818	129	53	are	be	AUX
ajst-28818	129	54	:	:	PUNCT
ajst-28818	129	55			NOUN
ajst-28818	129	56			PROPN
ajst-28818	129	57			NOUN
ajst-28818	129	58			PUNCT
ajst-28818	129	59	cos	cos	PROPN
ajst-28818	129	60	cos	cos	PROPN
ajst-28818	129	61	cos	cos	PROPN
ajst-28818	129	62	sin	sin	PROPN
ajst-28818	129	63	sin	sin	NOUN
ajst-28818	129	64	sin	sin	NOUN
ajst-28818	129	65	cos	cos	ADP
ajst-28818	129	66	sin	sin	NOUN
ajst-28818	129	67	x	x	X
ajst-28818	129	68	y	y	VERB
ajst-28818	129	69	u	u	NOUN
ajst-28818	129	70	u	u	NOUN
ajst-28818	130	1	r	r	NOUN
ajst-28818	130	2	r	r	NOUN
ajst-28818	130	3	u	u	NOUN
ajst-28818	130	4	x	x	NOUN
ajst-28818	130	5	x	x	VERB
ajst-28818	130	6	y	y	VERB
ajst-28818	130	7	u	u	NOUN
ajst-28818	130	8	v	v	ADP
ajst-28818	130	9	r	r	NOUN
ajst-28818	130	10	r	r	NOUN
ajst-28818	130	11	v	v	NOUN
ajst-28818	130	12	y	y	NOUN
ajst-28818	130	13	x	x	SYM
ajst-28818	130	14	y	y	NOUN
ajst-28818	130	15			NOUN
ajst-28818	130	16			X
ajst-28818	130	17			X
ajst-28818	130	18			X
ajst-28818	130	19			SYM
ajst-28818	130	20			X
ajst-28818	130	21			X
ajst-28818	130	22			X
ajst-28818	130	23			X
ajst-28818	130	24			X
ajst-28818	130	25			SYM
ajst-28818	131	1			PROPN
ajst-28818	131	2			PROPN
ajst-28818	131	3			PROPN
ajst-28818	131	4			ADJ
ajst-28818	131	5			X
ajst-28818	131	6			PRON
ajst-28818	131	7			PROPN
ajst-28818	131	8			NOUN
ajst-28818	131	9			ADV
ajst-28818	131	10			NOUN
ajst-28818	131	11			NOUN
ajst-28818	131	12			PROPN
ajst-28818	131	13			NUM
ajst-28818	131	14			PROPN
ajst-28818	131	15			PROPN
ajst-28818	131	16			PROPN
ajst-28818	131	17			ADJ
ajst-28818	131	18			X
ajst-28818	131	19			NOUN
ajst-28818	131	20			PROPN
ajst-28818	131	21			ADV
ajst-28818	131	22			PUNCT
ajst-28818	131	23			NOUN
ajst-28818	131	24			X
ajst-28818	131	25			X
ajst-28818	131	26	(	(	PUNCT
ajst-28818	131	27	17	17	NUM
ajst-28818	131	28	)	)	PUNCT
ajst-28818	131	29	when	when	SCONJ
ajst-28818	131	30			PROPN
ajst-28818	131	31	is	be	AUX
ajst-28818	131	32	small	small	ADJ
ajst-28818	131	33	,	,	PUNCT
ajst-28818	131	34	cos	cos	ADJ
ajst-28818	131	35	1	1	NUM
ajst-28818	131	36	,	,	PUNCT
ajst-28818	131	37	sin	sin	PROPN
ajst-28818	131	38			PROPN
ajst-28818	131	39			PROPN
ajst-28818	131	40			X
ajst-28818	131	41	,	,	PUNCT
ajst-28818	131	42	plugging	plug	VERB
ajst-28818	131	43	into	into	ADP
ajst-28818	131	44	the	the	DET
ajst-28818	131	45	above	above	ADJ
ajst-28818	131	46	equation	equation	NOUN
ajst-28818	131	47	to	to	PART
ajst-28818	131	48	sort	sort	VERB
ajst-28818	131	49	:	:	PUNCT
ajst-28818	131	50	x	x	NUM
ajst-28818	131	51	yu	yu	PROPN
ajst-28818	131	52	u	u	NOUN
ajst-28818	131	53	y	y	PROPN
ajst-28818	131	54	u	u	X
ajst-28818	131	55	v	v	PROPN
ajst-28818	131	56	x	x	PROPN
ajst-28818	131	57			PROPN
ajst-28818	131	58			PROPN
ajst-28818	131	59			PROPN
ajst-28818	131	60			PROPN
ajst-28818	131	61	，	，	PUNCT
ajst-28818	131	62	(	(	PUNCT
ajst-28818	131	63	18	18	NUM
ajst-28818	131	64	)	)	PUNCT
ajst-28818	131	65	then	then	ADV
ajst-28818	131	66	the	the	DET
ajst-28818	131	67	displacement	displacement	NOUN
ajst-28818	131	68	(	(	PUNCT
ajst-28818	131	69	xu	xu	INTJ
ajst-28818	131	70	,	,	PUNCT
ajst-28818	131	71	yu	yu	PROPN
ajst-28818	131	72	,	,	PUNCT
ajst-28818	131	73	zu	zu	PROPN
ajst-28818	131	74	)	)	PUNCT
ajst-28818	131	75	is	be	AUX
ajst-28818	131	76	the	the	DET
ajst-28818	131	77	displacement	displacement	ADJ
ajst-28818	131	78	field	field	NOUN
ajst-28818	131	79	function	function	NOUN
ajst-28818	131	80	of	of	ADP
ajst-28818	131	81	the	the	DET
ajst-28818	131	82	coordinate	coordinate	NOUN
ajst-28818	131	83	system	system	NOUN
ajst-28818	131	84	(	(	PUNCT
ajst-28818	131	85	x	x	X
ajst-28818	131	86	,	,	PUNCT
ajst-28818	131	87	y	y	PROPN
ajst-28818	131	88	,	,	PUNCT
ajst-28818	131	89	z	z	PROPN
ajst-28818	131	90	)	)	PUNCT
ajst-28818	131	91	,	,	PUNCT
ajst-28818	131	92	whose	whose	DET
ajst-28818	131	93	expression	expression	NOUN
ajst-28818	131	94	is	be	AUX
ajst-28818	131	95	as	as	SCONJ
ajst-28818	131	96	follows	follow	VERB
ajst-28818	131	97	:	:	PUNCT
ajst-28818	131	98	,	,	PUNCT
ajst-28818	131	99	,	,	PUNCT
ajst-28818	131	100	x	x	X
ajst-28818	131	101	y	y	NOUN
ajst-28818	131	102	z	z	NOUN
ajst-28818	131	103	x	x	SYM
ajst-28818	131	104	y	y	VERB
ajst-28818	131	105	u	u	NOUN
ajst-28818	131	106	u	u	VERB
ajst-28818	131	107	y	y	PROPN
ajst-28818	131	108	u	u	X
ajst-28818	131	109	v	v	NOUN
ajst-28818	131	110	x	x	SYM
ajst-28818	131	111	u	u	PROPN
ajst-28818	131	112	w	w	PROPN
ajst-28818	131	113	xu	xu	PROPN
ajst-28818	131	114	yu	yu	PROPN
ajst-28818	131	115	w	w	PROPN
ajst-28818	131	116	xu	xu	PROPN
ajst-28818	131	117	yv	yv	PROPN
ajst-28818	131	118			PROPN
ajst-28818	131	119			PROPN
ajst-28818	131	120			PROPN
ajst-28818	131	121			PROPN
ajst-28818	131	122			NOUN
ajst-28818	131	123			NUM
ajst-28818	132	1			CCONJ
ajst-28818	132	2			ADP
ajst-28818	133	1			ADJ
ajst-28818	133	2			PROPN
ajst-28818	133	3			PROPN
ajst-28818	133	4			PROPN
ajst-28818	133	5			PROPN
ajst-28818	133	6			PROPN
ajst-28818	133	7			PROPN
ajst-28818	133	8	(	(	PUNCT
ajst-28818	133	9	19	19	NUM
ajst-28818	133	10	)	)	PUNCT
ajst-28818	133	11	following	follow	VERB
ajst-28818	133	12	green	green	PROPN
ajst-28818	133	13	's	's	PART
ajst-28818	133	14	strain	strain	NOUN
ajst-28818	133	15	formula	formula	NOUN
ajst-28818	133	16	,	,	PUNCT
ajst-28818	133	17	the	the	DET
ajst-28818	133	18	strain	strain	NOUN
ajst-28818	133	19	in	in	ADP
ajst-28818	133	20	the	the	DET
ajst-28818	133	21	displacement	displacement	ADJ
ajst-28818	133	22	field	field	NOUN
ajst-28818	133	23	can	can	AUX
ajst-28818	133	24	be	be	AUX
ajst-28818	133	25	expressed	express	VERB
ajst-28818	133	26	as	as	ADP
ajst-28818	133	27	(	(	PUNCT
ajst-28818	133	28	yin	yin	PROPN
ajst-28818	133	29	,	,	PUNCT
ajst-28818	133	30	2019	2019	NUM
ajst-28818	133	31	):	):	PUNCT
ajst-28818	133	32			NOUN
ajst-28818	133	33	1	1	ADJ
ajst-28818	133	34	1	1	NUM
ajst-28818	133	35	,	,	PUNCT
ajst-28818	133	36	,	,	PUNCT
ajst-28818	133	37	,	,	PUNCT
ajst-28818	133	38	,	,	PUNCT
ajst-28818	133	39	2	2	NUM
ajst-28818	133	40	2	2	NUM
ajst-28818	134	1	i	i	NOUN
ajst-28818	134	2	j	j	PROPN
ajst-28818	135	1	k	k	PROPN
ajst-28818	135	2	k	k	PROPN
ajst-28818	136	1	ij	ij	INTJ
ajst-28818	136	2	u	u	X
ajst-28818	136	3	u	u	X
ajst-28818	136	4	u	u	NOUN
ajst-28818	136	5	u	u	NOUN
ajst-28818	136	6	i	i	NOUN
ajst-28818	136	7	j	j	PROPN
ajst-28818	137	1	k	k	NOUN
ajst-28818	137	2	x	x	PUNCT
ajst-28818	137	3	y	y	VERB
ajst-28818	137	4	z	z	NOUN
ajst-28818	138	1	i	i	PRON
ajst-28818	138	2	i	i	PRON
ajst-28818	139	1	i	i	VERB
ajst-28818	139	2	j	j	PROPN
ajst-28818	139	3			PROPN
ajst-28818	139	4			VERB
ajst-28818	139	5			NOUN
ajst-28818	139	6			NOUN
ajst-28818	139	7			ADJ
ajst-28818	139	8			PROPN
ajst-28818	139	9			PROPN
ajst-28818	139	10			PROPN
ajst-28818	139	11			ADV
ajst-28818	139	12			X
ajst-28818	139	13			PUNCT
ajst-28818	139	14			X
ajst-28818	140	1			X
ajst-28818	140	2			ADJ
ajst-28818	140	3			PROPN
ajst-28818	140	4			ADJ
ajst-28818	140	5			NOUN
ajst-28818	140	6			PROPN
ajst-28818	140	7			NOUN
ajst-28818	140	8	(	(	PUNCT
ajst-28818	140	9	20	20	NUM
ajst-28818	140	10	)	)	PUNCT
ajst-28818	140	11	where	where	SCONJ
ajst-28818	140	12			NOUN
ajst-28818	140	13	is	be	AUX
ajst-28818	140	14	the	the	DET
ajst-28818	140	15	nonlinearity	nonlinearity	NOUN
ajst-28818	140	16	or	or	CCONJ
ajst-28818	140	17	coupling	coupling	NOUN
ajst-28818	140	18	factor	factor	NOUN
ajst-28818	140	19	and	and	CCONJ
ajst-28818	140	20	=	=	NOUN
ajst-28818	140	21	1	1	PROPN
ajst-28818	140	22	is	be	AUX
ajst-28818	140	23	the	the	DET
ajst-28818	140	24	actual	actual	ADJ
ajst-28818	140	25	nonlinear	nonlinear	ADJ
ajst-28818	140	26	geometric	geometric	ADJ
ajst-28818	140	27	equation	equation	NOUN
ajst-28818	140	28	of	of	ADP
ajst-28818	140	29	the	the	DET
ajst-28818	140	30	element	element	NOUN
ajst-28818	140	31	.	.	PUNCT
ajst-28818	141	1	when	when	SCONJ
ajst-28818	141	2	=	=	X
ajst-28818	141	3	0	0	NUM
ajst-28818	141	4	,	,	PUNCT
ajst-28818	141	5	equation	equation	NOUN
ajst-28818	141	6	(	(	PUNCT
ajst-28818	141	7	20	20	NUM
ajst-28818	141	8	)	)	PUNCT
ajst-28818	141	9	degenerates	degenerate	NOUN
ajst-28818	141	10	into	into	ADP
ajst-28818	141	11	a	a	DET
ajst-28818	141	12	linear	linear	ADJ
ajst-28818	141	13	geometric	geometric	ADJ
ajst-28818	141	14	equation	equation	NOUN
ajst-28818	141	15	.	.	PUNCT
ajst-28818	142	1	for	for	ADP
ajst-28818	142	2	drill	drill	NOUN
ajst-28818	142	3	-	-	PUNCT
ajst-28818	142	4	string	string	NOUN
ajst-28818	142	5	with	with	ADP
ajst-28818	142	6	ultra	ultra	ADJ
ajst-28818	142	7	-	-	ADJ
ajst-28818	142	8	long	long	ADJ
ajst-28818	142	9	and	and	CCONJ
ajst-28818	142	10	fine	fine	ADJ
ajst-28818	142	11	ratio	ratio	NOUN
ajst-28818	142	12	,	,	PUNCT
ajst-28818	142	13	the	the	DET
ajst-28818	142	14	stress	stress	NOUN
ajst-28818	142	15	of	of	ADP
ajst-28818	142	16	the	the	DET
ajst-28818	142	17	drill	drill	NOUN
ajst-28818	142	18	-	-	PUNCT
ajst-28818	142	19	string	string	NOUN
ajst-28818	142	20	can	can	AUX
ajst-28818	142	21	be	be	AUX
ajst-28818	142	22	assumed	assume	VERB
ajst-28818	142	23	to	to	PART
ajst-28818	142	24	be	be	AUX
ajst-28818	142	25	dominated	dominate	VERB
ajst-28818	142	26	by	by	ADP
ajst-28818	142	27	axial	axial	ADJ
ajst-28818	142	28	stress	stress	NOUN
ajst-28818	142	29	.	.	PUNCT
ajst-28818	143	1	0,x	0,x	PROPN
ajst-28818	143	2	y	y	PROPN
ajst-28818	143	3	xy	xy	PROPN
ajst-28818	143	4			PROPN
ajst-28818	143	5			VERB
ajst-28818	144	1			NUM
ajst-28818	144	2			NUM
ajst-28818	144	3	0,xy	0,xy	NUM
ajst-28818	144	4	x	x	PUNCT
ajst-28818	144	5	y	y	PROPN
ajst-28818	144	6	z	z	PROPN
ajst-28818	144	7			PROPN
ajst-28818	144	8			PROPN
ajst-28818	144	9			PROPN
ajst-28818	144	10			PROPN
ajst-28818	145	1			PROPN
ajst-28818	145	2			NOUN
ajst-28818	145	3	(	(	PUNCT
ajst-28818	145	4	21	21	NUM
ajst-28818	145	5	)	)	PUNCT
ajst-28818	145	6	where	where	SCONJ
ajst-28818	145	7	,	,	PUNCT
ajst-28818	145	8			ADJ
ajst-28818	145	9	is	be	AUX
ajst-28818	145	10	the	the	DET
ajst-28818	145	11	poisson	poisson	NOUN
ajst-28818	145	12	's	's	PART
ajst-28818	145	13	ratio	ratio	NOUN
ajst-28818	145	14	.	.	PUNCT
ajst-28818	146	1	the	the	DET
ajst-28818	146	2	strain	strain	NOUN
ajst-28818	146	3	can	can	AUX
ajst-28818	146	4	be	be	AUX
ajst-28818	146	5	obtained	obtain	VERB
ajst-28818	146	6	according	accord	VERB
ajst-28818	146	7	to	to	ADP
ajst-28818	146	8	einstein	einstein	PROPN
ajst-28818	146	9	's	's	PART
ajst-28818	146	10	summation	summation	NOUN
ajst-28818	146	11	rule	rule	NOUN
ajst-28818	146	12	.	.	PUNCT
ajst-28818	147	1	22	22	NUM
ajst-28818	147	2	2	2	NUM
ajst-28818	147	3	2	2	NUM
ajst-28818	147	4	2	2	NUM
ajst-28818	147	5	2	2	NUM
ajst-28818	147	6	1	1	NUM
ajst-28818	147	7	2	2	NUM
ajst-28818	147	8	1	1	NUM
ajst-28818	147	9	(	(	PUNCT
ajst-28818	147	10	)	)	PUNCT
ajst-28818	147	11	(	(	PUNCT
ajst-28818	147	12	)	)	PUNCT
ajst-28818	147	13	(	(	PUNCT
ajst-28818	147	14	)	)	PUNCT
ajst-28818	147	15	2	2	NUM
ajst-28818	147	16	yxz	yxz	NOUN
ajst-28818	147	17	z	z	NOUN
ajst-28818	147	18	z	z	NOUN
ajst-28818	147	19	z	z	NOUN
ajst-28818	147	20	z	z	NOUN
ajst-28818	147	21	uuu	uuu	NOUN
ajst-28818	147	22	u	u	PROPN
ajst-28818	147	23	z	z	PROPN
ajst-28818	147	24	z	z	PROPN
ajst-28818	147	25	z	z	NOUN
ajst-28818	147	26	z	z	NOUN
ajst-28818	147	27	w	w	PROPN
ajst-28818	147	28	xu	xu	PROPN
ajst-28818	148	1	yv	yv	PROPN
ajst-28818	148	2	u	u	PROPN
ajst-28818	148	3	y	y	PROPN
ajst-28818	148	4	v	v	NOUN
ajst-28818	148	5	x	x	PROPN
ajst-28818	148	6	w	w	PROPN
ajst-28818	148	7	xu	xu	PROPN
ajst-28818	148	8	yv	yv	PROPN
ajst-28818	148	9			PROPN
ajst-28818	148	10			NOUN
ajst-28818	148	11			NOUN
ajst-28818	148	12			X
ajst-28818	148	13			PROPN
ajst-28818	148	14			PROPN
ajst-28818	148	15			PROPN
ajst-28818	148	16			PROPN
ajst-28818	148	17			PROPN
ajst-28818	148	18			PROPN
ajst-28818	148	19			PROPN
ajst-28818	148	20			PROPN
ajst-28818	148	21			PROPN
ajst-28818	148	22			PUNCT
ajst-28818	148	23			PROPN
ajst-28818	148	24			VERB
ajst-28818	148	25			PROPN
ajst-28818	148	26			PROPN
ajst-28818	148	27			VERB
ajst-28818	149	1			X
ajst-28818	149	2			ADJ
ajst-28818	149	3			PROPN
ajst-28818	149	4			VERB
ajst-28818	149	5			NOUN
ajst-28818	149	6			NOUN
ajst-28818	149	7			NOUN
ajst-28818	149	8			PROPN
ajst-28818	149	9			PROPN
ajst-28818	149	10			PROPN
ajst-28818	149	11			PROPN
ajst-28818	149	12			PROPN
ajst-28818	149	13			PROPN
ajst-28818	149	14			PROPN
ajst-28818	149	15			ADV
ajst-28818	149	16			ADV
ajst-28818	149	17			ADV
ajst-28818	149	18			PROPN
ajst-28818	149	19			PROPN
ajst-28818	149	20			PROPN
ajst-28818	149	21			PROPN
ajst-28818	149	22			PUNCT
ajst-28818	149	23			PROPN
ajst-28818	149	24			PUNCT
ajst-28818	149	25			CCONJ
ajst-28818	149	26			PUNCT
ajst-28818	149	27			PROPN
ajst-28818	149	28			PROPN
ajst-28818	149	29			VERB
ajst-28818	149	30			PROPN
ajst-28818	149	31	(	(	PUNCT
ajst-28818	149	32	22a	22a	NUM
ajst-28818	149	33	)	)	PUNCT
ajst-28818	149	34			NOUN
ajst-28818	149	35			PUNCT
ajst-28818	149	36	1	1	NUM
ajst-28818	149	37	1	1	NUM
ajst-28818	149	38	2	2	NUM
ajst-28818	149	39	2	2	NUM
ajst-28818	149	40	1	1	NUM
ajst-28818	149	41	1	1	NUM
ajst-28818	149	42	=	=	SYM
ajst-28818	149	43	(	(	PUNCT
ajst-28818	149	44	)	)	PUNCT
ajst-28818	149	45	(	(	PUNCT
ajst-28818	149	46	)	)	PUNCT
ajst-28818	149	47	2	2	NUM
ajst-28818	149	48	2	2	NUM
ajst-28818	149	49	y	y	NOUN
ajst-28818	149	50	yx	yx	X
ajst-28818	149	51	x	x	PUNCT
ajst-28818	149	52	xz	xz	PROPN
ajst-28818	149	53	z	z	PROPN
ajst-28818	149	54	z	z	PROPN
ajst-28818	150	1	xz	xz	PROPN
ajst-28818	150	2	z	z	PROPN
ajst-28818	150	3	z	z	PROPN
ajst-28818	150	4	z	z	X
ajst-28818	150	5	u	u	NOUN
ajst-28818	150	6	uu	uu	PRON
ajst-28818	150	7	u	u	NOUN
ajst-28818	150	8	uu	uu	ADP
ajst-28818	150	9	u	u	NOUN
ajst-28818	150	10	u	u	NOUN
ajst-28818	150	11	z	z	NOUN
ajst-28818	150	12	x	x	X
ajst-28818	150	13	z	z	NOUN
ajst-28818	150	14	x	x	X
ajst-28818	150	15	z	z	NOUN
ajst-28818	150	16	x	x	X
ajst-28818	151	1	z	z	NOUN
ajst-28818	151	2	x	x	SYM
ajst-28818	151	3	y	y	NOUN
ajst-28818	151	4	v	v	NOUN
ajst-28818	151	5	x	x	PROPN
ajst-28818	151	6	w	w	PROPN
ajst-28818	151	7	xu	xu	PROPN
ajst-28818	151	8	yv	yv	PROPN
ajst-28818	151	9	u	u	PROPN
ajst-28818	151	10			PROPN
ajst-28818	151	11			NOUN
ajst-28818	151	12			X
ajst-28818	151	13			VERB
ajst-28818	151	14			X
ajst-28818	151	15			PROPN
ajst-28818	151	16			PROPN
ajst-28818	152	1			NUM
ajst-28818	152	2			PROPN
ajst-28818	152	3			ADJ
ajst-28818	152	4			PROPN
ajst-28818	152	5			PROPN
ajst-28818	152	6			PROPN
ajst-28818	152	7			PROPN
ajst-28818	152	8			PROPN
ajst-28818	152	9			VERB
ajst-28818	152	10			PUNCT
ajst-28818	152	11			PROPN
ajst-28818	152	12			X
ajst-28818	152	13			PROPN
ajst-28818	152	14			ADJ
ajst-28818	152	15			ADJ
ajst-28818	152	16			ADJ
ajst-28818	152	17			ADJ
ajst-28818	152	18			PROPN
ajst-28818	152	19			PROPN
ajst-28818	152	20			ADJ
ajst-28818	152	21			NOUN
ajst-28818	152	22			PROPN
ajst-28818	152	23			NOUN
ajst-28818	152	24			VERB
ajst-28818	152	25			PROPN
ajst-28818	152	26			PROPN
ajst-28818	152	27			PROPN
ajst-28818	152	28			PROPN
ajst-28818	152	29			PROPN
ajst-28818	152	30			PUNCT
ajst-28818	152	31			PUNCT
ajst-28818	152	32			PROPN
ajst-28818	152	33			PROPN
ajst-28818	152	34			PROPN
ajst-28818	152	35	(	(	PUNCT
ajst-28818	152	36	22b	22b	NOUN
ajst-28818	152	37	)	)	PUNCT
ajst-28818	152	38			NOUN
ajst-28818	153	1			PUNCT
ajst-28818	153	2	1	1	NUM
ajst-28818	153	3	1	1	NUM
ajst-28818	153	4	2	2	NUM
ajst-28818	153	5	2	2	NUM
ajst-28818	153	6	1	1	NUM
ajst-28818	153	7	1	1	NUM
ajst-28818	153	8	(	(	PUNCT
ajst-28818	153	9	)	)	PUNCT
ajst-28818	153	10	(	(	PUNCT
ajst-28818	153	11	)	)	PUNCT
ajst-28818	153	12	2	2	NUM
ajst-28818	153	13	2	2	NUM
ajst-28818	153	14	y	y	NOUN
ajst-28818	153	15	y	y	PROPN
ajst-28818	153	16	yx	yx	PROPN
ajst-28818	154	1	xz	xz	PROPN
ajst-28818	154	2	z	z	PROPN
ajst-28818	154	3	z	z	PROPN
ajst-28818	154	4	yz	yz	PROPN
ajst-28818	155	1	z	z	PROPN
ajst-28818	155	2	z	z	NOUN
ajst-28818	155	3	z	z	PUNCT
ajst-28818	155	4	u	u	NOUN
ajst-28818	155	5	u	u	NOUN
ajst-28818	155	6	uu	uu	PUNCT
ajst-28818	155	7	uu	uu	VERB
ajst-28818	155	8	u	u	NOUN
ajst-28818	155	9	u	u	NOUN
ajst-28818	155	10	z	z	PROPN
ajst-28818	155	11	y	y	PROPN
ajst-28818	155	12	z	z	PROPN
ajst-28818	155	13	y	y	PROPN
ajst-28818	155	14	z	z	VERB
ajst-28818	155	15	y	y	PROPN
ajst-28818	155	16	z	z	NOUN
ajst-28818	155	17	y	y	PROPN
ajst-28818	155	18	x	x	SYM
ajst-28818	155	19	u	u	VERB
ajst-28818	155	20	y	y	PROPN
ajst-28818	155	21	w	w	PROPN
ajst-28818	155	22	xu	xu	PROPN
ajst-28818	155	23	yv	yv	PROPN
ajst-28818	155	24	v	v	PROPN
ajst-28818	155	25			PROPN
ajst-28818	155	26			NOUN
ajst-28818	155	27			X
ajst-28818	155	28			VERB
ajst-28818	155	29			X
ajst-28818	155	30			PROPN
ajst-28818	155	31			PROPN
ajst-28818	155	32			PROPN
ajst-28818	155	33			SYM
ajst-28818	155	34			PROPN
ajst-28818	155	35			NOUN
ajst-28818	155	36			PROPN
ajst-28818	155	37			PROPN
ajst-28818	155	38			PROPN
ajst-28818	155	39			PROPN
ajst-28818	155	40			PROPN
ajst-28818	155	41			PROPN
ajst-28818	155	42			PUNCT
ajst-28818	155	43			PUNCT
ajst-28818	155	44			PROPN
ajst-28818	155	45			PROPN
ajst-28818	156	1			PROPN
ajst-28818	156	2			PROPN
ajst-28818	156	3			ADJ
ajst-28818	156	4			ADJ
ajst-28818	156	5			ADJ
ajst-28818	156	6			ADJ
ajst-28818	156	7			PROPN
ajst-28818	156	8			PROPN
ajst-28818	156	9			ADJ
ajst-28818	156	10			NOUN
ajst-28818	156	11			PROPN
ajst-28818	156	12			NOUN
ajst-28818	156	13			VERB
ajst-28818	156	14			PROPN
ajst-28818	156	15			PROPN
ajst-28818	156	16			PROPN
ajst-28818	156	17			PROPN
ajst-28818	156	18			PROPN
ajst-28818	156	19			PROPN
ajst-28818	156	20			PROPN
ajst-28818	156	21			PUNCT
ajst-28818	156	22			PROPN
ajst-28818	156	23			PROPN
ajst-28818	156	24	(	(	PUNCT
ajst-28818	156	25	22c	22c	NOUN
ajst-28818	156	26	)	)	PUNCT
ajst-28818	156	27	it	it	PRON
ajst-28818	156	28	can	can	AUX
ajst-28818	156	29	be	be	AUX
ajst-28818	156	30	obtained	obtain	VERB
ajst-28818	156	31	from	from	ADP
ajst-28818	156	32	the	the	DET
ajst-28818	156	33	element	element	ADJ
ajst-28818	156	34	potential	potential	ADJ
ajst-28818	156	35	energy	energy	NOUN
ajst-28818	156	36	formula	formula	NOUN
ajst-28818	156	37	.	.	PUNCT
ajst-28818	157	1	2	2	NUM
ajst-28818	157	2	2	2	NUM
ajst-28818	157	3	0	0	NUM
ajst-28818	157	4	1	1	NUM
ajst-28818	157	5	d	d	NOUN
ajst-28818	157	6	(	(	PUNCT
ajst-28818	157	7	)	)	PUNCT
ajst-28818	157	8	d	d	SYM
ajst-28818	158	1	d	d	PROPN
ajst-28818	158	2	2	2	NUM
ajst-28818	158	3	el	el	PROPN
ajst-28818	158	4	a	a	PRON
ajst-28818	158	5	v	v	X
ajst-28818	158	6	e	e	NOUN
ajst-28818	158	7	g	g	ADP
ajst-28818	158	8	a	a	DET
ajst-28818	158	9	z	z	ADJ
ajst-28818	158	10			PROPN
ajst-28818	158	11			PROPN
ajst-28818	158	12			PROPN
ajst-28818	158	13			NUM
ajst-28818	158	14			PRON
ajst-28818	158	15			NOUN
ajst-28818	158	16			PUNCT
ajst-28818	158	17			PUNCT
ajst-28818	158	18	(	(	PUNCT
ajst-28818	158	19	23	23	NUM
ajst-28818	158	20	)	)	PUNCT
ajst-28818	158	21	where	where	SCONJ
ajst-28818	158	22	,	,	PUNCT
ajst-28818	158	23	e	e	X
ajst-28818	158	24	is	be	AUX
ajst-28818	158	25	the	the	DET
ajst-28818	158	26	modulus	modulus	NOUN
ajst-28818	158	27	of	of	ADP
ajst-28818	158	28	elasticity	elasticity	NOUN
ajst-28818	158	29	,	,	PUNCT
ajst-28818	158	30	g	g	PROPN
ajst-28818	158	31	is	be	AUX
ajst-28818	158	32	the	the	DET
ajst-28818	158	33	modulus	modulus	NOUN
ajst-28818	158	34	of	of	ADP
ajst-28818	158	35	shear	shear	NOUN
ajst-28818	158	36	,	,	PUNCT
ajst-28818	158	37			PROPN
ajst-28818	158	38	is	be	AUX
ajst-28818	158	39	the	the	DET
ajst-28818	158	40	shear	shear	NOUN
ajst-28818	158	41	strain	strain	NOUN
ajst-28818	158	42	,	,	PUNCT
ajst-28818	159	1			NOUN
ajst-28818	159	2			SYM
ajst-28818	159	3			NOUN
ajst-28818	159	4	222	222	NOUN
ajst-28818	159	5	=	=	SYM
ajst-28818	159	6	2	2	NUM
ajst-28818	159	7	2xz	2xz	ADJ
ajst-28818	159	8	yz	yz	NOUN
ajst-28818	159	9			PROPN
ajst-28818	159	10			PROPN
ajst-28818	159	11	.	.	PUNCT
ajst-28818	160	1	it	it	PRON
ajst-28818	160	2	has	have	AUX
ajst-28818	160	3	also	also	ADV
ajst-28818	160	4	been	be	AUX
ajst-28818	160	5	argued	argue	VERB
ajst-28818	160	6	that	that	SCONJ
ajst-28818	160	7	the	the	DET
ajst-28818	160	8	following	follow	VERB
ajst-28818	160	9	relations	relation	NOUN
ajst-28818	160	10	exist	exist	VERB
ajst-28818	160	11	in	in	ADP
ajst-28818	160	12	the	the	DET
ajst-28818	160	13	integration	integration	NOUN
ajst-28818	160	14	process	process	NOUN
ajst-28818	160	15	:	:	PUNCT
ajst-28818	160	16			NOUN
ajst-28818	160	17			PROPN
ajst-28818	160	18	3	3	NUM
ajst-28818	160	19	3	3	NUM
ajst-28818	160	20	2	2	NUM
ajst-28818	160	21	2	2	NUM
ajst-28818	160	22	2	2	NUM
ajst-28818	160	23	2	2	NUM
ajst-28818	160	24	2	2	NUM
ajst-28818	160	25	2	2	NUM
ajst-28818	160	26	d	d	NOUN
ajst-28818	160	27	0	0	NUM
ajst-28818	161	1	d	d	NOUN
ajst-28818	161	2	0	0	NUM
ajst-28818	162	1	d	d	NOUN
ajst-28818	162	2	0	0	NUM
ajst-28818	163	1	d	d	NOUN
ajst-28818	163	2	0	0	NUM
ajst-28818	164	1	d	d	NOUN
ajst-28818	164	2	0	0	NUM
ajst-28818	165	1	d	d	NOUN
ajst-28818	165	2	0	0	NUM
ajst-28818	166	1	d	d	NOUN
ajst-28818	166	2	0	0	PUNCT
ajst-28818	167	1	d	d	NOUN
ajst-28818	167	2	d	d	PROPN
ajst-28818	167	3	d	d	PROPN
ajst-28818	167	4	a	a	PRON
ajst-28818	167	5	a	a	DET
ajst-28818	167	6	a	a	DET
ajst-28818	167	7	a	a	DET
ajst-28818	167	8	a	a	DET
ajst-28818	167	9	a	a	DET
ajst-28818	167	10	a	a	DET
ajst-28818	167	11	a	a	DET
ajst-28818	167	12	a	a	DET
ajst-28818	167	13	a	a	NOUN
ajst-28818	167	14	x	x	SYM
ajst-28818	167	15	a	a	DET
ajst-28818	167	16	y	y	PROPN
ajst-28818	167	17	a	a	X
ajst-28818	167	18	x	x	X
ajst-28818	167	19	a	a	DET
ajst-28818	167	20	y	y	PROPN
ajst-28818	167	21	a	a	DET
ajst-28818	167	22	xy	xy	PROPN
ajst-28818	168	1	a	a	DET
ajst-28818	168	2	xy	xy	PROPN
ajst-28818	168	3	a	a	X
ajst-28818	168	4	x	x	X
ajst-28818	168	5	y	y	PROPN
ajst-28818	168	6	a	a	NOUN
ajst-28818	168	7	x	x	X
ajst-28818	168	8	a	a	PRON
ajst-28818	168	9	i	i	NOUN
ajst-28818	168	10	y	y	PROPN
ajst-28818	168	11	a	a	INTJ
ajst-28818	168	12	i	i	INTJ
ajst-28818	168	13	x	x	PROPN
ajst-28818	168	14	y	y	NOUN
ajst-28818	168	15	a	a	DET
ajst-28818	168	16	i	i	ADJ
ajst-28818	168	17			PROPN
ajst-28818	168	18			PROPN
ajst-28818	168	19			PROPN
ajst-28818	168	20			VERB
ajst-28818	168	21			ADV
ajst-28818	168	22			ADV
ajst-28818	168	23			PROPN
ajst-28818	168	24			PROPN
ajst-28818	168	25			PROPN
ajst-28818	168	26			ADP
ajst-28818	169	1			PROPN
ajst-28818	170	1			NUM
ajst-28818	170	2			PROPN
ajst-28818	170	3			NOUN
ajst-28818	170	4			NUM
ajst-28818	170	5			NUM
ajst-28818	170	6			NOUN
ajst-28818	170	7			PROPN
ajst-28818	170	8			PROPN
ajst-28818	170	9			NUM
ajst-28818	171	1			NUM
ajst-28818	171	2			NOUN
ajst-28818	171	3			PROPN
ajst-28818	171	4			PUNCT
ajst-28818	171	5			NOUN
ajst-28818	171	6			X
ajst-28818	171	7			ADJ
ajst-28818	171	8			ADJ
ajst-28818	171	9			ADJ
ajst-28818	171	10			ADJ
ajst-28818	171	11			ADJ
ajst-28818	171	12			ADJ
ajst-28818	171	13			ADJ
ajst-28818	171	14			X
ajst-28818	171	15			ADV
ajst-28818	171	16	(	(	PUNCT
ajst-28818	171	17	24	24	NUM
ajst-28818	171	18	)	)	PUNCT
ajst-28818	171	19	in	in	ADP
ajst-28818	171	20	combination	combination	NOUN
ajst-28818	171	21	with	with	ADP
ajst-28818	171	22	equations	equation	NOUN
ajst-28818	171	23	(	(	PUNCT
ajst-28818	171	24	22)-(24	22)-(24	NUM
ajst-28818	171	25	)	)	PUNCT
ajst-28818	171	26	,	,	PUNCT
ajst-28818	171	27	the	the	DET
ajst-28818	171	28	potential	potential	ADJ
ajst-28818	171	29	energy	energy	NOUN
ajst-28818	171	30	v	v	NOUN
ajst-28818	171	31	expression	expression	NOUN
ajst-28818	171	32	of	of	ADP
ajst-28818	171	33	the	the	DET
ajst-28818	171	34	drill	drill	NOUN
ajst-28818	171	35	-	-	PUNCT
ajst-28818	171	36	string	string	NOUN
ajst-28818	171	37	element	element	NOUN
ajst-28818	171	38	is	be	AUX
ajst-28818	171	39	obtained	obtain	VERB
ajst-28818	171	40	by	by	ADP
ajst-28818	171	41	ignoring	ignore	VERB
ajst-28818	171	42	the	the	DET
ajst-28818	171	43	higher	high	ADJ
ajst-28818	171	44	-	-	PUNCT
ajst-28818	171	45	order	order	NOUN
ajst-28818	171	46	minor	minor	ADJ
ajst-28818	171	47	terms	term	NOUN
ajst-28818	171	48	:	:	PUNCT
ajst-28818	171	49			NOUN
ajst-28818	171	50			SYM
ajst-28818	171	51			NOUN
ajst-28818	171	52			SYM
ajst-28818	171	53			NOUN
ajst-28818	171	54			NOUN
ajst-28818	171	55	2	2	NUM
ajst-28818	171	56	2	2	NUM
ajst-28818	171	57	2	2	NUM
ajst-28818	171	58	3	3	NUM
ajst-28818	171	59	2	2	NUM
ajst-28818	171	60	0	0	NUM
ajst-28818	171	61	0	0	NUM
ajst-28818	171	62	2	2	NUM
ajst-28818	171	63	2	2	NUM
ajst-28818	171	64	2	2	NUM
ajst-28818	171	65	2	2	NUM
ajst-28818	171	66	2	2	NUM
ajst-28818	171	67	0	0	NUM
ajst-28818	172	1	d	d	NOUN
ajst-28818	172	2	2	2	NUM
ajst-28818	172	3	2	2	NUM
ajst-28818	172	4	d	d	SYM
ajst-28818	172	5	2	2	NUM
ajst-28818	172	6	2	2	NUM
ajst-28818	172	7	2	2	NUM
ajst-28818	172	8	2	2	NUM
ajst-28818	172	9	2	2	NUM
ajst-28818	172	10	3	3	NUM
ajst-28818	172	11	3	3	NUM
ajst-28818	172	12	d	d	SYM
ajst-28818	172	13	2	2	NUM
ajst-28818	172	14	e	e	NOUN
ajst-28818	172	15	e	e	X
ajst-28818	172	16	e	e	X
ajst-28818	172	17	l	l	NOUN
ajst-28818	172	18	l	l	X
ajst-28818	172	19	z	z	NOUN
ajst-28818	172	20	z	z	NOUN
ajst-28818	172	21	z	z	NOUN
ajst-28818	172	22	l	l	NOUN
ajst-28818	172	23	z	z	NOUN
ajst-28818	172	24	z	z	NOUN
ajst-28818	172	25	z	z	NOUN
ajst-28818	172	26	ea	ea	NOUN
ajst-28818	172	27	gi	gi	NOUN
ajst-28818	172	28	v	v	PROPN
ajst-28818	172	29	w	w	PROPN
ajst-28818	172	30	w	w	PROPN
ajst-28818	172	31	u	u	PROPN
ajst-28818	172	32	w	w	PROPN
ajst-28818	172	33	v	v	PROPN
ajst-28818	172	34	w	w	PROPN
ajst-28818	172	35	z	z	PROPN
ajst-28818	172	36	u	u	NOUN
ajst-28818	172	37	v	v	ADP
ajst-28818	172	38	u	u	NOUN
ajst-28818	172	39	v	v	ADP
ajst-28818	172	40	z	z	NOUN
ajst-28818	172	41	ei	ei	ADP
ajst-28818	172	42	u	u	PROPN
ajst-28818	172	43	v	v	PROPN
ajst-28818	172	44	w	w	PROPN
ajst-28818	172	45	u	u	PROPN
ajst-28818	172	46	v	v	ADP
ajst-28818	172	47	u	u	NOUN
ajst-28818	172	48	v	v	NOUN
ajst-28818	172	49	w	w	NOUN
ajst-28818	172	50	u	u	PROPN
ajst-28818	172	51	w	w	PROPN
ajst-28818	172	52	v	v	NOUN
ajst-28818	172	53	z	z	NOUN
ajst-28818	172	54			NOUN
ajst-28818	173	1			X
ajst-28818	173	2			VERB
ajst-28818	173	3			X
ajst-28818	173	4			X
ajst-28818	173	5			VERB
ajst-28818	173	6			X
ajst-28818	174	1			PROPN
ajst-28818	174	2			PROPN
ajst-28818	174	3			PROPN
ajst-28818	175	1			PROPN
ajst-28818	176	1			ADV
ajst-28818	176	2			NOUN
ajst-28818	177	1			PROPN
ajst-28818	178	1			CCONJ
ajst-28818	179	1			ADV
ajst-28818	180	1			ADV
ajst-28818	181	1			ADV
ajst-28818	182	1			ADV
ajst-28818	182	2			ADP
ajst-28818	182	3			PROPN
ajst-28818	182	4			PROPN
ajst-28818	182	5			PROPN
ajst-28818	182	6			PROPN
ajst-28818	182	7			VERB
ajst-28818	182	8			PUNCT
ajst-28818	182	9			PUNCT
ajst-28818	182	10			NOUN
ajst-28818	182	11			NOUN
ajst-28818	182	12			PROPN
ajst-28818	182	13			VERB
ajst-28818	182	14			PROPN
ajst-28818	182	15			PROPN
ajst-28818	182	16			PROPN
ajst-28818	182	17			PROPN
ajst-28818	182	18			PROPN
ajst-28818	182	19			NOUN
ajst-28818	182	20			PROPN
ajst-28818	182	21			PROPN
ajst-28818	182	22			ADP
ajst-28818	182	23			PROPN
ajst-28818	182	24			PROPN
ajst-28818	182	25			ADV
ajst-28818	182	26			ADP
ajst-28818	182	27			PROPN
ajst-28818	183	1			ADV
ajst-28818	183	2			VERB
ajst-28818	183	3			PROPN
ajst-28818	183	4			PUNCT
ajst-28818	183	5			PUNCT
ajst-28818	183	6			PROPN
ajst-28818	183	7			VERB
ajst-28818	183	8			PROPN
ajst-28818	183	9			PROPN
ajst-28818	183	10			PROPN
ajst-28818	183	11			X
ajst-28818	183	12			X
ajst-28818	183	13			X
ajst-28818	183	14	(	(	PUNCT
ajst-28818	183	15	25	25	NUM
ajst-28818	183	16	)	)	PUNCT
ajst-28818	183	17	2.3	2.3	NUM
ajst-28818	183	18	.	.	PUNCT
ajst-28818	184	1	drill	drill	NOUN
ajst-28818	184	2	-	-	PUNCT
ajst-28818	184	3	string	string	NOUN
ajst-28818	184	4	element	element	NOUN
ajst-28818	184	5	shape	shape	NOUN
ajst-28818	184	6	function	function	NOUN
ajst-28818	184	7	in	in	ADP
ajst-28818	184	8	the	the	DET
ajst-28818	184	9	above	above	ADJ
ajst-28818	184	10	derivation	derivation	NOUN
ajst-28818	184	11	of	of	ADP
ajst-28818	184	12	the	the	DET
ajst-28818	184	13	expressions	expression	NOUN
ajst-28818	184	14	of	of	ADP
ajst-28818	184	15	drill	drill	NOUN
ajst-28818	184	16	-	-	PUNCT
ajst-28818	184	17	string	string	NOUN
ajst-28818	184	18	kinetic	kinetic	ADJ
ajst-28818	184	19	energy	energy	NOUN
ajst-28818	184	20	and	and	CCONJ
ajst-28818	184	21	potential	potential	ADJ
ajst-28818	184	22	energy	energy	NOUN
ajst-28818	184	23	,	,	PUNCT
ajst-28818	184	24	the	the	DET
ajst-28818	184	25	continuous	continuous	ADJ
ajst-28818	184	26	displacement	displacement	NOUN
ajst-28818	184	27	function	function	NOUN
ajst-28818	184	28	is	be	AUX
ajst-28818	184	29	used	use	VERB
ajst-28818	184	30	,	,	PUNCT
ajst-28818	184	31	while	while	SCONJ
ajst-28818	184	32	the	the	DET
ajst-28818	184	33	expressions	expression	NOUN
ajst-28818	184	34	of	of	ADP
ajst-28818	184	35	drillstring	drillstring	NOUN
ajst-28818	184	36	element	element	NOUN
ajst-28818	184	37	kinetic	kinetic	ADJ
ajst-28818	184	38	energy	energy	NOUN
ajst-28818	184	39	and	and	CCONJ
ajst-28818	184	40	potential	potential	ADJ
ajst-28818	184	41	energy	energy	NOUN
ajst-28818	184	42	in	in	ADP
ajst-28818	184	43	equation	equation	NOUN
ajst-28818	184	44	(	(	PUNCT
ajst-28818	184	45	5	5	NUM
ajst-28818	184	46	)	)	PUNCT
ajst-28818	184	47	are	be	AUX
ajst-28818	184	48	expressed	express	VERB
ajst-28818	184	49	by	by	ADP
ajst-28818	184	50	the	the	DET
ajst-28818	184	51	generalized	generalized	ADJ
ajst-28818	184	52	displacement	displacement	NOUN
ajst-28818	184	53	of	of	ADP
ajst-28818	184	54	drillstring	drillstring	ADJ
ajst-28818	184	55	element	element	NOUN
ajst-28818	184	56	nodes	node	NOUN
ajst-28818	184	57	.	.	PUNCT
ajst-28818	185	1	therefore	therefore	ADV
ajst-28818	185	2	,	,	PUNCT
ajst-28818	185	3	the	the	DET
ajst-28818	185	4	continuous	continuous	ADJ
ajst-28818	185	5	displacements	displacement	NOUN
ajst-28818	185	6	in	in	ADP
ajst-28818	185	7	equations	equation	NOUN
ajst-28818	185	8	(	(	PUNCT
ajst-28818	185	9	16	16	NUM
ajst-28818	185	10	)	)	PUNCT
ajst-28818	185	11	and	and	CCONJ
ajst-28818	185	12	(	(	PUNCT
ajst-28818	185	13	25	25	NUM
ajst-28818	185	14	)	)	PUNCT
ajst-28818	185	15	need	need	VERB
ajst-28818	185	16	to	to	PART
ajst-28818	185	17	be	be	AUX
ajst-28818	185	18	replaced	replace	VERB
ajst-28818	185	19	by	by	ADP
ajst-28818	185	20	nodal	nodal	ADJ
ajst-28818	185	21	displacements	displacement	NOUN
ajst-28818	185	22	,	,	PUNCT
ajst-28818	185	23	which	which	PRON
ajst-28818	185	24	can	can	AUX
ajst-28818	185	25	be	be	AUX
ajst-28818	185	26	done	do	VERB
ajst-28818	185	27	by	by	ADP
ajst-28818	185	28	introducing	introduce	VERB
ajst-28818	185	29	a	a	DET
ajst-28818	185	30	shape	shape	NOUN
ajst-28818	185	31	function	function	NOUN
ajst-28818	185	32	.	.	PUNCT
ajst-28818	186	1	as	as	SCONJ
ajst-28818	186	2	can	can	AUX
ajst-28818	186	3	be	be	AUX
ajst-28818	186	4	seen	see	VERB
ajst-28818	186	5	from	from	ADP
ajst-28818	186	6	the	the	DET
ajst-28818	186	7	derivation	derivation	NOUN
ajst-28818	186	8	,	,	PUNCT
ajst-28818	186	9	the	the	DET
ajst-28818	186	10	drillstring	drillstring	ADJ
ajst-28818	186	11	displacement	displacement	NOUN
ajst-28818	186	12	consists	consist	VERB
ajst-28818	186	13	of	of	ADP
ajst-28818	186	14	two	two	NUM
ajst-28818	186	15	lateral	lateral	ADJ
ajst-28818	186	16	displacements	displacement	NOUN
ajst-28818	186	17	u	u	NOUN
ajst-28818	186	18	and	and	CCONJ
ajst-28818	186	19	v	v	NOUN
ajst-28818	186	20	,	,	PUNCT
ajst-28818	186	21	one	one	NUM
ajst-28818	186	22	axial	axial	ADJ
ajst-28818	186	23	displacement	displacement	NOUN
ajst-28818	186	24	w	w	NOUN
ajst-28818	186	25	,	,	PUNCT
ajst-28818	186	26	two	two	NUM
ajst-28818	186	27	lateral	lateral	ADJ
ajst-28818	186	28	rotation	rotation	NOUN
ajst-28818	186	29	angles	angle	VERB
ajst-28818	186	30	x	x	PROPN
ajst-28818	186	31	and	and	CCONJ
ajst-28818	186	32	y	y	NOUN
ajst-28818	186	33	,	,	PUNCT
ajst-28818	186	34	and	and	CCONJ
ajst-28818	186	35	one	one	NUM
ajst-28818	186	36	torsional	torsional	ADJ
ajst-28818	186	37	angle	angle	NOUN
ajst-28818	186	38	z	z	PROPN
ajst-28818	186	39	.	.	PUNCT
ajst-28818	187	1	according	accord	VERB
ajst-28818	187	2	to	to	ADP
ajst-28818	187	3	equation	equation	NOUN
ajst-28818	187	4	(	(	PUNCT
ajst-28818	187	5	12	12	NUM
ajst-28818	187	6	)	)	PUNCT
ajst-28818	187	7	,	,	PUNCT
ajst-28818	187	8	the	the	DET
ajst-28818	187	9	two	two	NUM
ajst-28818	187	10	lateral	lateral	ADJ
ajst-28818	187	11	angles	angle	NOUN
ajst-28818	187	12	are	be	AUX
ajst-28818	187	13	not	not	PART
ajst-28818	187	14	independent	independent	ADJ
ajst-28818	187	15	degrees	degree	NOUN
ajst-28818	187	16	of	of	ADP
ajst-28818	187	17	freedom	freedom	NOUN
ajst-28818	187	18	and	and	CCONJ
ajst-28818	187	19	can	can	AUX
ajst-28818	187	20	be	be	AUX
ajst-28818	187	21	obtained	obtain	VERB
ajst-28818	187	22	from	from	ADP
ajst-28818	187	23	the	the	DET
ajst-28818	187	24	lateral	lateral	ADJ
ajst-28818	187	25	displacement	displacement	NOUN
ajst-28818	187	26	to	to	ADP
ajst-28818	187	27	the	the	DET
ajst-28818	187	28	axial	axial	ADJ
ajst-28818	187	29	partial	partial	ADJ
ajst-28818	187	30	derivative	derivative	NOUN
ajst-28818	187	31	.	.	PUNCT
ajst-28818	188	1	thus	thus	ADV
ajst-28818	188	2	,	,	PUNCT
ajst-28818	188	3	the	the	DET
ajst-28818	188	4	cubic	cubic	ADJ
ajst-28818	188	5	hermite	hermite	ADJ
ajst-28818	188	6	interpolation	interpolation	NOUN
ajst-28818	188	7	function	function	NOUN
ajst-28818	188	8	is	be	AUX
ajst-28818	188	9	used	use	VERB
ajst-28818	188	10	to	to	PART
ajst-28818	188	11	express	express	VERB
ajst-28818	188	12	the	the	DET
ajst-28818	188	13	transverse	transverse	ADJ
ajst-28818	188	14	displacement	displacement	NOUN
ajst-28818	188	15	of	of	ADP
ajst-28818	188	16	the	the	DET
ajst-28818	188	17	drill	drill	NOUN
ajst-28818	188	18	-	-	PUNCT
ajst-28818	188	19	string	string	NOUN
ajst-28818	188	20	in	in	ADP
ajst-28818	188	21	the	the	DET
ajst-28818	188	22	x	x	NOUN
ajst-28818	188	23	and	and	CCONJ
ajst-28818	188	24	y	y	PROPN
ajst-28818	188	25	directions	direction	NOUN
ajst-28818	188	26	,	,	PUNCT
ajst-28818	188	27	and	and	CCONJ
ajst-28818	188	28	the	the	DET
ajst-28818	188	29	lagrangian	lagrangian	ADJ
ajst-28818	188	30	interpolation	interpolation	NOUN
ajst-28818	188	31	function	function	NOUN
ajst-28818	188	32	is	be	AUX
ajst-28818	188	33	used	use	VERB
ajst-28818	188	34	to	to	PART
ajst-28818	188	35	express	express	VERB
ajst-28818	188	36	the	the	DET
ajst-28818	188	37	axial	axial	ADJ
ajst-28818	188	38	and	and	CCONJ
ajst-28818	188	39	torsional	torsional	ADJ
ajst-28818	188	40	displacements	displacement	NOUN
ajst-28818	188	41	:	:	PUNCT
ajst-28818	188	42	t	t	PROPN
ajst-28818	188	43	t	t	PROPN
ajst-28818	188	44	1	1	NUM
ajst-28818	188	45	2	2	NUM
ajst-28818	188	46	t	t	NOUN
ajst-28818	188	47	t	t	NOUN
ajst-28818	188	48	3	3	NUM
ajst-28818	188	49	4	4	NUM
ajst-28818	188	50	,	,	PUNCT
ajst-28818	188	51	,	,	PUNCT
ajst-28818	188	52	z	z	NOUN
ajst-28818	188	53	u	u	NOUN
ajst-28818	188	54	v	v	X
ajst-28818	188	55	w	w	NOUN
ajst-28818	188	56			X
ajst-28818	188	57			ADP
ajst-28818	189	1			PROPN
ajst-28818	189	2			NOUN
ajst-28818	190	1			NUM
ajst-28818	190	2			NUM
ajst-28818	190	3			NOUN
ajst-28818	190	4	φ	φ	PROPN
ajst-28818	190	5	d	d	PROPN
ajst-28818	190	6	φ	φ	PROPN
ajst-28818	190	7	d	d	PROPN
ajst-28818	190	8	φ	φ	PROPN
ajst-28818	190	9	d	d	PROPN
ajst-28818	190	10	φ	φ	PROPN
ajst-28818	190	11	d	d	PROPN
ajst-28818	190	12	(	(	PUNCT
ajst-28818	190	13	26	26	NUM
ajst-28818	190	14	)	)	PUNCT
ajst-28818	190	15	where	where	SCONJ
ajst-28818	190	16	:	:	PUNCT
ajst-28818	190	17	1	1	NUM
ajst-28818	190	18	1	1	NUM
ajst-28818	190	19	2	2	NUM
ajst-28818	190	20	2	2	NUM
ajst-28818	190	21	t	t	NOUN
ajst-28818	190	22	1	1	NUM
ajst-28818	190	23	1	1	NUM
ajst-28818	190	24	1	1	NUM
ajst-28818	190	25	1	1	NUM
ajst-28818	190	26	2	2	NUM
ajst-28818	190	27	2	2	NUM
ajst-28818	190	28	2	2	NUM
ajst-28818	190	29	2	2	NUM
ajst-28818	190	30	2	2	NUM
ajst-28818	190	31	3	3	NUM
ajst-28818	190	32	2	2	NUM
ajst-28818	190	33	3	3	NUM
ajst-28818	190	34	2	2	NUM
ajst-28818	190	35	3	3	NUM
ajst-28818	190	36	3	3	NUM
ajst-28818	190	37	2	2	NUM
ajst-28818	190	38	t	t	NOUN
ajst-28818	190	39	1	1	NUM
ajst-28818	190	40	2	2	NUM
ajst-28818	190	41	3	3	NUM
ajst-28818	190	42	2	2	NUM
ajst-28818	190	43	2	2	NUM
ajst-28818	190	44	3	3	NUM
ajst-28818	190	45	2	2	NUM
ajst-28818	190	46	2	2	NUM
ajst-28818	190	47	3	3	NUM
ajst-28818	190	48	2	2	NUM
ajst-28818	190	49	3	3	NUM
ajst-28818	190	50	t	t	NOUN
ajst-28818	190	51	2	2	NUM
ajst-28818	190	52	2	2	NUM
ajst-28818	190	53	3	3	NUM
ajst-28818	190	54	2	2	NUM
ajst-28818	190	55	3	3	NUM
ajst-28818	190	56	2	2	NUM
ajst-28818	190	57	2	2	NUM
ajst-28818	190	58	3	3	NUM
ajst-28818	190	59	21	21	NUM
ajst-28818	190	60	,	,	PUNCT
ajst-28818	190	61	,	,	PUNCT
ajst-28818	190	62	0,0,0,0	0,0,0,0	NOUN
ajst-28818	190	63	,	,	PUNCT
ajst-28818	190	64	,	,	PUNCT
ajst-28818	190	65	,	,	PUNCT
ajst-28818	190	66	0,0,0,0	0,0,0,0	NOUN
ajst-28818	190	67	3	3	NUM
ajst-28818	190	68	2	2	NUM
ajst-28818	190	69	20,0,1	20,0,1	NUM
ajst-28818	190	70	,	,	PUNCT
ajst-28818	190	71	,	,	PUNCT
ajst-28818	190	72	0,0,0	0,0,0	X
ajst-28818	190	73	z	z	NOUN
ajst-28818	190	74	z	z	NOUN
ajst-28818	190	75	e	e	NOUN
ajst-28818	190	76	e	e	X
ajst-28818	190	77	e	e	X
ajst-28818	190	78	e	e	X
ajst-28818	190	79	e	e	X
ajst-28818	190	80	e	e	X
ajst-28818	190	81	e	e	X
ajst-28818	190	82	e	e	X
ajst-28818	190	83	e	e	X
ajst-28818	190	84	e	e	X
ajst-28818	190	85	e	e	X
ajst-28818	190	86	e	e	X
ajst-28818	190	87	u	u	NOUN
ajst-28818	190	88	v	v	ADP
ajst-28818	190	89	u	u	X
ajst-28818	190	90	vu	vu	X
ajst-28818	190	91	v	v	NOUN
ajst-28818	190	92	w	w	PROPN
ajst-28818	190	93	u	u	PROPN
ajst-28818	190	94	v	v	PROPN
ajst-28818	190	95	w	w	PROPN
ajst-28818	190	96	z	z	PROPN
ajst-28818	190	97	z	z	NOUN
ajst-28818	190	98	z	z	NOUN
ajst-28818	190	99	z	z	NOUN
ajst-28818	190	100	z	z	NOUN
ajst-28818	190	101	z	z	NOUN
ajst-28818	190	102	z	z	NOUN
ajst-28818	190	103	z	z	NOUN
ajst-28818	190	104	z	z	NOUN
ajst-28818	190	105	z	z	NOUN
ajst-28818	190	106	z	z	NOUN
ajst-28818	190	107	zz	zz	NOUN
ajst-28818	190	108	l	l	NOUN
ajst-28818	190	109	l	l	X
ajst-28818	190	110	l	l	X
ajst-28818	190	111	l	l	NOUN
ajst-28818	190	112	l	l	NOUN
ajst-28818	190	113	l	l	NOUN
ajst-28818	190	114	l	l	X
ajst-28818	190	115	l	l	NOUN
ajst-28818	190	116	z	z	NOUN
ajst-28818	190	117	z	z	NOUN
ajst-28818	190	118	z	z	NOUN
ajst-28818	190	119	zz	zz	NOUN
ajst-28818	190	120	l	l	NOUN
ajst-28818	190	121	l	l	X
ajst-28818	190	122	l	l	X
ajst-28818	190	123	l	l	X
ajst-28818	190	124			X
ajst-28818	191	1			PROPN
ajst-28818	191	2			PROPN
ajst-28818	191	3			PROPN
ajst-28818	191	4			PROPN
ajst-28818	191	5			PROPN
ajst-28818	191	6			PROPN
ajst-28818	191	7			PROPN
ajst-28818	191	8			PROPN
ajst-28818	191	9			PROPN
ajst-28818	191	10			PROPN
ajst-28818	191	11			PROPN
ajst-28818	191	12			PROPN
ajst-28818	191	13			PROPN
ajst-28818	191	14			PROPN
ajst-28818	191	15			VERB
ajst-28818	191	16			PROPN
ajst-28818	191	17			VERB
ajst-28818	191	18			PROPN
ajst-28818	191	19			PROPN
ajst-28818	191	20			PROPN
ajst-28818	191	21			PROPN
ajst-28818	191	22			PROPN
ajst-28818	191	23			PROPN
ajst-28818	191	24			VERB
ajst-28818	191	25			PROPN
ajst-28818	191	26			PROPN
ajst-28818	191	27	d	d	PROPN
ajst-28818	191	28	φ	φ	PROPN
ajst-28818	191	29	φ	φ	PROPN
ajst-28818	191	30	2	2	NUM
ajst-28818	191	31	3	3	NUM
ajst-28818	191	32	3	3	NUM
ajst-28818	191	33	2	2	NUM
ajst-28818	191	34	2	2	NUM
ajst-28818	191	35	3	3	NUM
ajst-28818	191	36	2	2	NUM
ajst-28818	191	37	t	t	NOUN
ajst-28818	191	38	3	3	NUM
ajst-28818	191	39	t	t	NOUN
ajst-28818	191	40	4	4	NUM
ajst-28818	191	41	3	3	NUM
ajst-28818	191	42	2,0	2,0	NUM
ajst-28818	191	43	,	,	PUNCT
ajst-28818	191	44	,	,	PUNCT
ajst-28818	191	45	,	,	PUNCT
ajst-28818	191	46	0,0	0,0	NUM
ajst-28818	191	47	0,0,0,0,1	0,0,0,0,1	NUM
ajst-28818	191	48	,	,	PUNCT
ajst-28818	191	49	0,0,0,0,0	0,0,0,0,0	NOUN
ajst-28818	191	50	,	,	PUNCT
ajst-28818	191	51	,	,	PUNCT
ajst-28818	191	52	0	0	NUM
ajst-28818	191	53	0,0,0,0,0,1	0,0,0,0,0,1	NUM
ajst-28818	191	54	,	,	PUNCT
ajst-28818	191	55	0,0,0,0,0	0,0,0,0,0	NOUN
ajst-28818	191	56	,	,	PUNCT
ajst-28818	191	57	e	e	X
ajst-28818	191	58	e	e	X
ajst-28818	191	59	e	e	X
ajst-28818	191	60	e	e	X
ajst-28818	191	61	e	e	X
ajst-28818	191	62	e	e	X
ajst-28818	191	63	e	e	X
ajst-28818	191	64	e	e	X
ajst-28818	191	65	z	z	PROPN
ajst-28818	191	66	z	z	NOUN
ajst-28818	191	67	z	z	NOUN
ajst-28818	191	68	z	z	NOUN
ajst-28818	191	69	l	l	NOUN
ajst-28818	191	70	l	l	NOUN
ajst-28818	191	71	l	l	X
ajst-28818	191	72	l	l	X
ajst-28818	191	73	z	z	NOUN
ajst-28818	191	74	z	z	NOUN
ajst-28818	191	75	l	l	NOUN
ajst-28818	191	76	l	l	NOUN
ajst-28818	191	77	z	z	NOUN
ajst-28818	191	78	z	z	NOUN
ajst-28818	191	79	l	l	NOUN
ajst-28818	191	80	l	l	NOUN
ajst-28818	191	81			NOUN
ajst-28818	191	82			NUM
ajst-28818	191	83			NUM
ajst-28818	191	84			NUM
ajst-28818	191	85			NUM
ajst-28818	191	86			NUM
ajst-28818	191	87			PROPN
ajst-28818	191	88			PROPN
ajst-28818	191	89			NOUN
ajst-28818	191	90			VERB
ajst-28818	191	91			ADJ
ajst-28818	191	92			NOUN
ajst-28818	191	93			NUM
ajst-28818	191	94			PROPN
ajst-28818	191	95			PROPN
ajst-28818	191	96			PROPN
ajst-28818	191	97			DET
ajst-28818	191	98			ADJ
ajst-28818	191	99			NOUN
ajst-28818	191	100			PROPN
ajst-28818	191	101			PROPN
ajst-28818	191	102			NUM
ajst-28818	191	103			PROPN
ajst-28818	191	104			VERB
ajst-28818	191	105			NOUN
ajst-28818	191	106			PROPN
ajst-28818	191	107	φ	φ	PROPN
ajst-28818	191	108	φ	φ	X
ajst-28818	191	109	(	(	PUNCT
ajst-28818	191	110	27	27	NUM
ajst-28818	191	111	)	)	PUNCT
ajst-28818	191	112	286	286	NUM
ajst-28818	191	113	the	the	DET
ajst-28818	191	114	shape	shape	NOUN
ajst-28818	191	115	functions	function	NOUN
ajst-28818	191	116	of	of	ADP
ajst-28818	191	117	the	the	DET
ajst-28818	191	118	drill	drill	NOUN
ajst-28818	191	119	-	-	PUNCT
ajst-28818	191	120	string	string	NOUN
ajst-28818	191	121	element	element	NOUN
ajst-28818	191	122	:	:	PUNCT
ajst-28818	191	123	1φ	1φ	NUM
ajst-28818	191	124	,	,	PUNCT
ajst-28818	191	125	2φ	2φ	NUM
ajst-28818	191	126	,	,	PUNCT
ajst-28818	191	127	3φ	3φ	NOUN
ajst-28818	191	128	and	and	CCONJ
ajst-28818	191	129	4φ	4φ	NOUN
ajst-28818	191	130	are	be	AUX
ajst-28818	191	131	obtained	obtain	VERB
ajst-28818	191	132	above	above	ADP
ajst-28818	191	133	,	,	PUNCT
ajst-28818	191	134	which	which	PRON
ajst-28818	191	135	can	can	AUX
ajst-28818	191	136	be	be	AUX
ajst-28818	191	137	put	put	VERB
ajst-28818	191	138	into	into	ADP
ajst-28818	191	139	equations	equation	NOUN
ajst-28818	191	140	(	(	PUNCT
ajst-28818	191	141	16	16	NUM
ajst-28818	191	142	)	)	PUNCT
ajst-28818	191	143	and	and	CCONJ
ajst-28818	191	144	(	(	PUNCT
ajst-28818	191	145	25	25	NUM
ajst-28818	191	146	)	)	PUNCT
ajst-28818	191	147	to	to	PART
ajst-28818	191	148	obtain	obtain	VERB
ajst-28818	191	149	the	the	DET
ajst-28818	191	150	kinetic	kinetic	ADJ
ajst-28818	191	151	and	and	CCONJ
ajst-28818	191	152	potential	potential	ADJ
ajst-28818	191	153	energy	energy	NOUN
ajst-28818	191	154	of	of	ADP
ajst-28818	191	155	the	the	DET
ajst-28818	191	156	drill	drill	NOUN
ajst-28818	191	157	-	-	PUNCT
ajst-28818	191	158	string	string	NOUN
ajst-28818	191	159	element	element	NOUN
ajst-28818	191	160	expressed	express	VERB
ajst-28818	191	161	by	by	ADP
ajst-28818	191	162	the	the	DET
ajst-28818	191	163	generalized	generalized	ADJ
ajst-28818	191	164	displacement	displacement	NOUN
ajst-28818	191	165	of	of	ADP
ajst-28818	191	166	the	the	DET
ajst-28818	191	167	drill	drill	NOUN
ajst-28818	191	168	-	-	PUNCT
ajst-28818	191	169	string	string	NOUN
ajst-28818	191	170	element	element	NOUN
ajst-28818	191	171	node	node	NOUN
ajst-28818	191	172	.	.	PUNCT
ajst-28818	192	1	2.4	2.4	NUM
ajst-28818	192	2	.	.	PUNCT
ajst-28818	192	3	dynamic	dynamic	ADJ
ajst-28818	192	4	equation	equation	NOUN
ajst-28818	192	5	for	for	ADP
ajst-28818	192	6	the	the	DET
ajst-28818	192	7	drill	drill	NOUN
ajst-28818	192	8	-	-	PUNCT
ajst-28818	192	9	string	string	NOUN
ajst-28818	192	10	element	element	NOUN
ajst-28818	192	11	let	let	VERB
ajst-28818	192	12			NOUN
ajst-28818	192	13	iff	iff	PUNCT
ajst-28818	192	14	be	be	AUX
ajst-28818	192	15	the	the	DET
ajst-28818	192	16	conservative	conservative	ADJ
ajst-28818	192	17	generalized	generalized	ADJ
ajst-28818	192	18	force	force	NOUN
ajst-28818	192	19	corresponding	correspond	VERB
ajst-28818	192	20	to	to	ADP
ajst-28818	192	21	the	the	DET
ajst-28818	192	22	generalized	generalized	ADJ
ajst-28818	192	23	displacement	displacement	NOUN
ajst-28818	192	24	of	of	ADP
ajst-28818	192	25	the	the	DET
ajst-28818	192	26	drillstring	drillstring	NOUN
ajst-28818	192	27	element	element	NOUN
ajst-28818	192	28	and	and	CCONJ
ajst-28818	192	29	l	l	PROPN
ajst-28818	192	30	t	t	PROPN
ajst-28818	192	31	v	v	ADV
ajst-28818	192	32			NOUN
ajst-28818	192	33	be	be	AUX
ajst-28818	192	34	the	the	DET
ajst-28818	192	35	lagrangian	lagrangian	ADJ
ajst-28818	192	36	function	function	NOUN
ajst-28818	192	37	.	.	PUNCT
ajst-28818	193	1	general	general	ADJ
ajst-28818	193	2	form	form	NOUN
ajst-28818	193	3	of	of	ADP
ajst-28818	193	4	the	the	DET
ajst-28818	193	5	lagrangian	lagrangian	NOUN
ajst-28818	193	6	of	of	ADP
ajst-28818	193	7	the	the	DET
ajst-28818	193	8	second	second	ADJ
ajst-28818	193	9	kind	kind	NOUN
ajst-28818	193	10	:	:	PUNCT
ajst-28818	193	11	d	d	X
ajst-28818	193	12	(	(	PUNCT
ajst-28818	193	13	1	1	NUM
ajst-28818	193	14	,	,	PUNCT
ajst-28818	193	15	2	2	NUM
ajst-28818	193	16	,	,	PUNCT
ajst-28818	193	17	...	...	PUNCT
ajst-28818	193	18	,	,	PUNCT
ajst-28818	193	19	12	12	NUM
ajst-28818	193	20	)	)	PUNCT
ajst-28818	194	1	d	d	NOUN
ajst-28818	194	2	i	i	PRON
ajst-28818	194	3	ii	ii	NOUN
ajst-28818	195	1	l	l	NOUN
ajst-28818	195	2	l	l	NOUN
ajst-28818	196	1	f	f	X
ajst-28818	196	2	i	i	PRON
ajst-28818	196	3	t	t	VERB
ajst-28818	196	4	dd	dd	VERB
ajst-28818	196	5			PROPN
ajst-28818	196	6			PROPN
ajst-28818	196	7			PROPN
ajst-28818	196	8			VERB
ajst-28818	196	9			PRON
ajst-28818	196	10			PUNCT
ajst-28818	196	11			PROPN
ajst-28818	196	12			PROPN
ajst-28818	196	13			PROPN
ajst-28818	196	14	(	(	PUNCT
ajst-28818	196	15	28	28	NUM
ajst-28818	196	16	)	)	PUNCT
ajst-28818	196	17	combined	combine	VERB
ajst-28818	196	18	with	with	ADP
ajst-28818	196	19	equations	equation	NOUN
ajst-28818	196	20	(	(	PUNCT
ajst-28818	196	21	2	2	NUM
ajst-28818	196	22	)	)	PUNCT
ajst-28818	196	23	and	and	CCONJ
ajst-28818	196	24	(	(	PUNCT
ajst-28818	196	25	4	4	NUM
ajst-28818	196	26	)	)	PUNCT
ajst-28818	196	27	,	,	PUNCT
ajst-28818	196	28	the	the	DET
ajst-28818	196	29	dynamics	dynamic	NOUN
ajst-28818	196	30	equation	equation	NOUN
ajst-28818	196	31	of	of	ADP
ajst-28818	196	32	the	the	DET
ajst-28818	196	33	drill	drill	NOUN
ajst-28818	196	34	-	-	PUNCT
ajst-28818	196	35	string	string	NOUN
ajst-28818	196	36	element	element	NOUN
ajst-28818	196	37	can	can	AUX
ajst-28818	196	38	be	be	AUX
ajst-28818	196	39	obtained	obtain	VERB
ajst-28818	196	40	:	:	PUNCT
ajst-28818	196	41	12	12	NUM
ajst-28818	196	42	1	1	NUM
ajst-28818	196	43	(	(	PUNCT
ajst-28818	196	44	)	)	PUNCT
ajst-28818	196	45	(	(	PUNCT
ajst-28818	196	46	1,2,	1,2,	NUM
ajst-28818	196	47	...	...	PUNCT
ajst-28818	196	48	,12)ij	,12)ij	PUNCT
ajst-28818	197	1	j	j	PROPN
ajst-28818	198	1	ij	ij	INTJ
ajst-28818	198	2	j	j	PROPN
ajst-28818	199	1	i	i	PRON
ajst-28818	199	2	j	j	PROPN
ajst-28818	200	1	m	m	VERB
ajst-28818	200	2	d	d	X
ajst-28818	201	1	k	k	PROPN
ajst-28818	201	2	d	d	X
ajst-28818	201	3	f	f	PROPN
ajst-28818	202	1	i	i	PRON
ajst-28818	202	2			VERB
ajst-28818	202	3			PUNCT
ajst-28818	202	4			NUM
ajst-28818	202	5			PROPN
ajst-28818	202	6			NOUN
ajst-28818	202	7	(	(	PUNCT
ajst-28818	202	8	29	29	NUM
ajst-28818	202	9	)	)	PUNCT
ajst-28818	202	10	write	write	NOUN
ajst-28818	202	11	matrix	matrix	NOUN
ajst-28818	202	12	form	form	NOUN
ajst-28818	202	13	as	as	ADP
ajst-28818	202	14	:	:	PUNCT
ajst-28818	202	15	e	e	PROPN
ajst-28818	202	16	ie	ie	PROPN
ajst-28818	202	17	m	m	PROPN
ajst-28818	202	18	d	d	X
ajst-28818	202	19	k	k	PROPN
ajst-28818	202	20	d	d	X
ajst-28818	202	21	f	f	PROPN
ajst-28818	202	22	(	(	PUNCT
ajst-28818	202	23	30	30	NUM
ajst-28818	202	24	)	)	PUNCT
ajst-28818	202	25	the	the	DET
ajst-28818	202	26	mass	mass	ADJ
ajst-28818	202	27	matrix	matrix	NOUN
ajst-28818	202	28	em	em	PRON
ajst-28818	202	29	and	and	CCONJ
ajst-28818	202	30	stiffness	stiffness	ADJ
ajst-28818	202	31	matrix	matrix	NOUN
ajst-28818	202	32	iek	iek	NOUN
ajst-28818	202	33	of	of	ADP
ajst-28818	202	34	the	the	DET
ajst-28818	202	35	drill	drill	NOUN
ajst-28818	202	36	-	-	PUNCT
ajst-28818	202	37	string	string	NOUN
ajst-28818	202	38	element	element	NOUN
ajst-28818	202	39	:	:	PUNCT
ajst-28818	202	40	1	1	NUM
ajst-28818	202	41	2	2	NUM
ajst-28818	202	42	3	3	NUM
ajst-28818	202	43	4	4	NUM
ajst-28818	202	44	t	t	NOUN
ajst-28818	202	45	t	t	NOUN
ajst-28818	202	46	t	t	PROPN
ajst-28818	202	47	t	t	PROPN
ajst-28818	202	48	1	1	NUM
ajst-28818	202	49	2	2	NUM
ajst-28818	202	50	3	3	NUM
ajst-28818	202	51	4	4	NUM
ajst-28818	202	52	4	4	NUM
ajst-28818	202	53	5	5	NUM
ajst-28818	202	54	5	5	NUM
ajst-28818	202	55	6	6	NUM
ajst-28818	202	56	6	6	NUM
ajst-28818	202	57	7	7	NUM
ajst-28818	202	58	7	7	NUM
ajst-28818	202	59	8	8	NUM
ajst-28818	202	60	e	e	X
ajst-28818	202	61	ie	ie	X
ajst-28818	203	1	i	i	PRON
ajst-28818	204	1	i	i	PRON
ajst-28818	205	1	i	i	PRON
ajst-28818	206	1	i	i	PRON
ajst-28818	207	1	i	i	PRON
ajst-28818	208	1	i	i	PRON
ajst-28818	208	2			VERB
ajst-28818	208	3			ADV
ajst-28818	208	4			X
ajst-28818	208	5			VERB
ajst-28818	208	6			NUM
ajst-28818	208	7			PROPN
ajst-28818	208	8			ADV
ajst-28818	208	9			PUNCT
ajst-28818	208	10			PROPN
ajst-28818	208	11			PROPN
ajst-28818	208	12			PROPN
ajst-28818	208	13			PROPN
ajst-28818	208	14			PUNCT
ajst-28818	208	15			PUNCT
ajst-28818	208	16			PROPN
ajst-28818	208	17	m	m	NOUN
ajst-28818	208	18	m	m	VERB
ajst-28818	208	19	m	m	VERB
ajst-28818	208	20	m	m	VERB
ajst-28818	208	21	m	m	VERB
ajst-28818	208	22	k	k	X
ajst-28818	209	1	k	k	PROPN
ajst-28818	209	2	k	k	PROPN
ajst-28818	210	1	k	k	PROPN
ajst-28818	210	2	k	k	PROPN
ajst-28818	211	1	k	k	PROPN
ajst-28818	211	2	k	k	PROPN
ajst-28818	211	3	k	k	PROPN
ajst-28818	211	4	k	k	PROPN
ajst-28818	211	5	k	k	PROPN
ajst-28818	211	6	k	k	PROPN
ajst-28818	211	7	k	k	X
ajst-28818	211	8	k+	k+	PROPN
ajst-28818	211	9	+	+	CCONJ
ajst-28818	211	10	(	(	PUNCT
ajst-28818	211	11	31	31	NUM
ajst-28818	211	12	)	)	PUNCT
ajst-28818	211	13	where	where	SCONJ
ajst-28818	211	14	i	i	PRON
ajst-28818	211	15	indicates	indicate	VERB
ajst-28818	211	16	different	different	ADJ
ajst-28818	211	17	coupling	coupling	NOUN
ajst-28818	211	18	vibration	vibration	NOUN
ajst-28818	211	19	modes	mode	NOUN
ajst-28818	211	20	.	.	PUNCT
ajst-28818	212	1	when	when	SCONJ
ajst-28818	212	2	i=1	i=1	X
ajst-28818	212	3	,	,	PUNCT
ajst-28818	212	4	the	the	DET
ajst-28818	212	5	transverse	transverse	NOUN
ajst-28818	212	6	and	and	CCONJ
ajst-28818	212	7	torsional	torsional	ADJ
ajst-28818	212	8	vibration	vibration	NOUN
ajst-28818	212	9	of	of	ADP
ajst-28818	212	10	the	the	DET
ajst-28818	212	11	drill	drill	NOUN
ajst-28818	212	12	-	-	PUNCT
ajst-28818	212	13	strings	string	NOUN
ajst-28818	212	14	will	will	AUX
ajst-28818	212	15	cause	cause	VERB
ajst-28818	212	16	axial	axial	ADJ
ajst-28818	212	17	coupled	couple	VERB
ajst-28818	212	18	vibration	vibration	NOUN
ajst-28818	212	19	.	.	PUNCT
ajst-28818	213	1	i=2	i=2	PROPN
ajst-28818	213	2	denotes	denote	VERB
ajst-28818	213	3	that	that	SCONJ
ajst-28818	213	4	the	the	DET
ajst-28818	213	5	axial	axial	ADJ
ajst-28818	213	6	tension	tension	NOUN
ajst-28818	213	7	affects	affect	VERB
ajst-28818	213	8	the	the	DET
ajst-28818	213	9	lateral	lateral	ADJ
ajst-28818	213	10	and	and	CCONJ
ajst-28818	213	11	torsional	torsional	ADJ
ajst-28818	213	12	stiffness	stiffness	NOUN
ajst-28818	213	13	.	.	PUNCT
ajst-28818	214	1	some	some	DET
ajst-28818	214	2	scholars	scholar	NOUN
ajst-28818	214	3	(	(	PUNCT
ajst-28818	214	4	xing	xing	PROPN
ajst-28818	214	5	and	and	CCONJ
ajst-28818	214	6	liang	liang	PROPN
ajst-28818	214	7	,	,	PUNCT
ajst-28818	214	8	2015	2015	NUM
ajst-28818	214	9	)	)	PUNCT
ajst-28818	214	10	have	have	AUX
ajst-28818	214	11	studied	study	VERB
ajst-28818	214	12	the	the	DET
ajst-28818	214	13	case	case	NOUN
ajst-28818	214	14	of	of	ADP
ajst-28818	214	15	i=1	i=1	PROPN
ajst-28818	214	16	,	,	PUNCT
ajst-28818	214	17	but	but	CCONJ
ajst-28818	214	18	more	more	ADJ
ajst-28818	214	19	scholars	scholar	NOUN
ajst-28818	214	20	(	(	PUNCT
ajst-28818	214	21	xie	xie	PROPN
ajst-28818	214	22	et	et	PROPN
ajst-28818	214	23	al	al	PROPN
ajst-28818	214	24	.	.	PROPN
ajst-28818	214	25	,	,	PUNCT
ajst-28818	214	26	2019	2019	NUM
ajst-28818	214	27	)	)	PUNCT
ajst-28818	214	28	are	be	AUX
ajst-28818	214	29	concerned	concerned	ADJ
ajst-28818	214	30	about	about	ADP
ajst-28818	214	31	the	the	DET
ajst-28818	214	32	case	case	NOUN
ajst-28818	214	33	of	of	ADP
ajst-28818	214	34	i=2	i=2	PROPN
ajst-28818	214	35	.	.	PUNCT
ajst-28818	215	1	the	the	DET
ajst-28818	215	2	linear	linear	PROPN
ajst-28818	215	3	mass	mass	NOUN
ajst-28818	215	4	and	and	CCONJ
ajst-28818	215	5	stiffness	stiffness	ADJ
ajst-28818	215	6	matrix	matrix	NOUN
ajst-28818	215	7	of	of	ADP
ajst-28818	215	8	drill	drill	NOUN
ajst-28818	215	9	-	-	PUNCT
ajst-28818	215	10	string	string	NOUN
ajst-28818	215	11	element	element	NOUN
ajst-28818	215	12	is	be	AUX
ajst-28818	215	13	as	as	SCONJ
ajst-28818	215	14	follows	follow	VERB
ajst-28818	215	15	:	:	PUNCT
ajst-28818	215	16			NOUN
ajst-28818	216	1			SYM
ajst-28818	216	2			NOUN
ajst-28818	216	3			PUNCT
ajst-28818	216	4			NOUN
ajst-28818	216	5			NOUN
ajst-28818	216	6	1	1	NUM
ajst-28818	216	7	0	0	NUM
ajst-28818	216	8	2	2	NUM
ajst-28818	216	9	0	0	NUM
ajst-28818	216	10	3	3	NUM
ajst-28818	216	11	0	0	NUM
ajst-28818	216	12	4	4	NUM
ajst-28818	216	13	0	0	NUM
ajst-28818	216	14	1	1	NUM
ajst-28818	216	15	0	0	NUM
ajst-28818	216	16	2	2	NUM
ajst-28818	216	17	0	0	NUM
ajst-28818	216	18	3	3	NUM
ajst-28818	216	19	0	0	NUM
ajst-28818	217	1	d	d	NOUN
ajst-28818	217	2	d	d	PROPN
ajst-28818	217	3	d	d	PROPN
ajst-28818	217	4	2	2	NUM
ajst-28818	217	5	d	d	NOUN
ajst-28818	217	6	d	d	PROPN
ajst-28818	217	7	d	d	PROPN
ajst-28818	217	8	2	2	NUM
ajst-28818	217	9	d	d	NOUN
ajst-28818	217	10	e	e	X
ajst-28818	217	11	e	e	X
ajst-28818	217	12	e	e	X
ajst-28818	217	13	e	e	X
ajst-28818	217	14	e	e	X
ajst-28818	217	15	e	e	X
ajst-28818	217	16	e	e	X
ajst-28818	217	17	l	l	PROPN
ajst-28818	217	18	t	t	PROPN
ajst-28818	217	19	t	t	PROPN
ajst-28818	217	20	l	l	PROPN
ajst-28818	217	21	t	t	PROPN
ajst-28818	217	22	t	t	PROPN
ajst-28818	217	23	l	l	NOUN
ajst-28818	217	24	t	t	PROPN
ajst-28818	217	25	l	l	NOUN
ajst-28818	217	26	t	t	PROPN
ajst-28818	217	27	l	l	PROPN
ajst-28818	217	28	t	t	PROPN
ajst-28818	217	29	t	t	PROPN
ajst-28818	217	30	l	l	NOUN
ajst-28818	217	31	t	t	PROPN
ajst-28818	217	32	l	l	PROPN
ajst-28818	217	33	t	t	PROPN
ajst-28818	218	1	a	a	PRON
ajst-28818	219	1	i	i	NOUN
ajst-28818	219	2	z	z	PROPN
ajst-28818	219	3	a	a	PRON
ajst-28818	220	1	i	i	PRON
ajst-28818	220	2	z	z	NOUN
ajst-28818	221	1	a	a	PRON
ajst-28818	221	2	z	z	NOUN
ajst-28818	222	1	i	i	PRON
ajst-28818	222	2	z	z	VERB
ajst-28818	222	3	ei	ei	INTJ
ajst-28818	222	4	z	z	PROPN
ajst-28818	222	5	ea	ea	PROPN
ajst-28818	222	6	z	z	PROPN
ajst-28818	222	7	gi	gi	NOUN
ajst-28818	222	8	z	z	PROPN
ajst-28818	222	9			ADP
ajst-28818	222	10			ADP
ajst-28818	222	11			X
ajst-28818	222	12			X
ajst-28818	222	13			X
ajst-28818	222	14			NOUN
ajst-28818	222	15			ADP
ajst-28818	222	16			CCONJ
ajst-28818	222	17			PROPN
ajst-28818	222	18			NOUN
ajst-28818	223	1			NUM
ajst-28818	223	2			ADJ
ajst-28818	223	3			NOUN
ajst-28818	223	4			NOUN
ajst-28818	224	1			NUM
ajst-28818	224	2			NUM
ajst-28818	224	3			NOUN
ajst-28818	224	4			X
ajst-28818	224	5			PROPN
ajst-28818	224	6			NUM
ajst-28818	224	7			X
ajst-28818	224	8			PROPN
ajst-28818	224	9			PROPN
ajst-28818	224	10			PROPN
ajst-28818	224	11			PROPN
ajst-28818	224	12			X
ajst-28818	224	13			NUM
ajst-28818	224	14			NUM
ajst-28818	224	15			PROPN
ajst-28818	224	16			ADJ
ajst-28818	224	17			NUM
ajst-28818	224	18			ADJ
ajst-28818	224	19			PROPN
ajst-28818	224	20			NOUN
ajst-28818	224	21			PUNCT
ajst-28818	224	22			X
ajst-28818	224	23			X
ajst-28818	224	24			X
ajst-28818	225	1			NOUN
ajst-28818	225	2			NOUN
ajst-28818	226	1			SYM
ajst-28818	226	2	1	1	NUM
ajst-28818	227	1	1	1	NUM
ajst-28818	227	2	1	1	NUM
ajst-28818	227	3	1	1	NUM
ajst-28818	227	4	2	2	NUM
ajst-28818	227	5	2	2	NUM
ajst-28818	227	6	2	2	NUM
ajst-28818	227	7	2	2	NUM
ajst-28818	227	8	3	3	NUM
ajst-28818	227	9	3	3	NUM
ajst-28818	227	10	4	4	NUM
ajst-28818	227	11	4	4	NUM
ajst-28818	227	12	1	1	NUM
ajst-28818	227	13	1	1	NUM
ajst-28818	227	14	2	2	NUM
ajst-28818	227	15	2	2	NUM
ajst-28818	227	16	3	3	NUM
ajst-28818	227	17	3	3	NUM
ajst-28818	227	18	4	4	NUM
ajst-28818	227	19	4	4	NUM
ajst-28818	227	20	m	m	PROPN
ajst-28818	227	21	φ	φ	PROPN
ajst-28818	227	22	φ	φ	PROPN
ajst-28818	227	23	φ	φ	PROPN
ajst-28818	227	24	φ	φ	PROPN
ajst-28818	227	25	m	m	PROPN
ajst-28818	227	26	φ	φ	PROPN
ajst-28818	227	27	φ	φ	PROPN
ajst-28818	227	28	φ	φ	PROPN
ajst-28818	227	29	φ	φ	PROPN
ajst-28818	227	30	m	m	PROPN
ajst-28818	227	31	φ	φ	PROPN
ajst-28818	227	32	φ	φ	PROPN
ajst-28818	227	33	m	m	PROPN
ajst-28818	227	34	φ	φ	PROPN
ajst-28818	227	35	φ	φ	PROPN
ajst-28818	227	36	k	k	PROPN
ajst-28818	227	37	φ	φ	PROPN
ajst-28818	227	38	φ	φ	PROPN
ajst-28818	227	39	φ	φ	PROPN
ajst-28818	227	40	φ	φ	PROPN
ajst-28818	227	41	k	k	PROPN
ajst-28818	228	1	φ	φ	PROPN
ajst-28818	228	2	φ	φ	PROPN
ajst-28818	228	3	k	k	PROPN
ajst-28818	228	4	φ	φ	PROPN
ajst-28818	228	5	φ	φ	PROPN
ajst-28818	228	6	(	(	PUNCT
ajst-28818	228	7	32a	32a	NOUN
ajst-28818	228	8	)	)	PUNCT
ajst-28818	228	9	where	where	SCONJ
ajst-28818	228	10	,	,	PUNCT
ajst-28818	228	11	1	1	NUM
ajst-28818	228	12	m	m	NOUN
ajst-28818	228	13	and	and	CCONJ
ajst-28818	228	14	2	2	NUM
ajst-28818	228	15	m	m	NOUN
ajst-28818	228	16	are	be	AUX
ajst-28818	228	17	the	the	DET
ajst-28818	228	18	lateral	lateral	ADJ
ajst-28818	228	19	mass	mass	ADJ
ajst-28818	228	20	matrices	matrix	NOUN
ajst-28818	228	21	,	,	PUNCT
ajst-28818	228	22	3	3	NUM
ajst-28818	228	23	m	m	NOUN
ajst-28818	228	24	is	be	AUX
ajst-28818	228	25	the	the	DET
ajst-28818	228	26	axial	axial	ADJ
ajst-28818	228	27	mass	mass	NOUN
ajst-28818	228	28	matrix	matrix	NOUN
ajst-28818	228	29	,	,	PUNCT
ajst-28818	228	30	4	4	NUM
ajst-28818	228	31	m	m	NOUN
ajst-28818	228	32	is	be	AUX
ajst-28818	228	33	the	the	DET
ajst-28818	228	34	torsional	torsional	ADJ
ajst-28818	228	35	mass	mass	NOUN
ajst-28818	228	36	matrix	matrix	NOUN
ajst-28818	228	37	,	,	PUNCT
ajst-28818	228	38	the	the	DET
ajst-28818	228	39	element	element	NOUN
ajst-28818	228	40	mass	mass	NOUN
ajst-28818	228	41	matrix	matrix	NOUN
ajst-28818	228	42	is	be	AUX
ajst-28818	228	43	the	the	DET
ajst-28818	228	44	same	same	ADJ
ajst-28818	228	45	as	as	ADP
ajst-28818	228	46	that	that	PRON
ajst-28818	228	47	in	in	ADP
ajst-28818	228	48	the	the	DET
ajst-28818	228	49	uncoupled	uncoupled	ADJ
ajst-28818	228	50	case	case	NOUN
ajst-28818	228	51	,	,	PUNCT
ajst-28818	228	52	because	because	SCONJ
ajst-28818	228	53	the	the	DET
ajst-28818	228	54	coupling	coupling	NOUN
ajst-28818	228	55	term	term	NOUN
ajst-28818	228	56	is	be	AUX
ajst-28818	228	57	not	not	PART
ajst-28818	228	58	considered	consider	VERB
ajst-28818	228	59	in	in	ADP
ajst-28818	228	60	the	the	DET
ajst-28818	228	61	kinetic	kinetic	ADJ
ajst-28818	228	62	energy	energy	NOUN
ajst-28818	228	63	function	function	NOUN
ajst-28818	228	64	of	of	ADP
ajst-28818	228	65	equation	equation	NOUN
ajst-28818	228	66	(	(	PUNCT
ajst-28818	228	67	16	16	NUM
ajst-28818	228	68	)	)	PUNCT
ajst-28818	228	69	.	.	PUNCT
ajst-28818	229	1	and	and	CCONJ
ajst-28818	229	2	1k	1k	NUM
ajst-28818	229	3	is	be	AUX
ajst-28818	229	4	the	the	DET
ajst-28818	229	5	lateral	lateral	ADJ
ajst-28818	229	6	linear	linear	ADJ
ajst-28818	229	7	stiffness	stiffness	NOUN
ajst-28818	229	8	matrix	matrix	NOUN
ajst-28818	229	9	,	,	PUNCT
ajst-28818	229	10	2k	2k	PROPN
ajst-28818	229	11	is	be	AUX
ajst-28818	229	12	the	the	DET
ajst-28818	229	13	axial	axial	ADJ
ajst-28818	229	14	linear	linear	ADJ
ajst-28818	229	15	stiffness	stiffness	NOUN
ajst-28818	229	16	matrix	matrix	NOUN
ajst-28818	229	17	,	,	PUNCT
ajst-28818	229	18	3k	3k	PRON
ajst-28818	229	19	is	be	AUX
ajst-28818	229	20	the	the	DET
ajst-28818	229	21	torsional	torsional	ADJ
ajst-28818	229	22	linear	linear	ADJ
ajst-28818	229	23	matrix	matrix	NOUN
ajst-28818	229	24	.	.	PUNCT
ajst-28818	230	1	the	the	DET
ajst-28818	230	2	nonlinear	nonlinear	ADJ
ajst-28818	230	3	stiffness	stiffness	NOUN
ajst-28818	230	4	matrix	matrix	NOUN
ajst-28818	230	5	of	of	ADP
ajst-28818	230	6	the	the	DET
ajst-28818	230	7	drill	drill	NOUN
ajst-28818	230	8	-	-	PUNCT
ajst-28818	230	9	string	string	NOUN
ajst-28818	230	10	element	element	NOUN
ajst-28818	230	11	is	be	AUX
ajst-28818	230	12	expressed	express	VERB
ajst-28818	230	13	as	as	SCONJ
ajst-28818	230	14	follows	follow	VERB
ajst-28818	230	15	:	:	PUNCT
ajst-28818	230	16			NOUN
ajst-28818	230	17			SYM
ajst-28818	230	18			NOUN
ajst-28818	231	1			NOUN
ajst-28818	232	1			PUNCT
ajst-28818	232	2			NOUN
ajst-28818	232	3			PUNCT
ajst-28818	232	4			NOUN
ajst-28818	232	5			NOUN
ajst-28818	232	6			PUNCT
ajst-28818	232	7			NOUN
ajst-28818	232	8			PROPN
ajst-28818	232	9	t	t	PROPN
ajst-28818	232	10	t	t	PROPN
ajst-28818	232	11	t	t	PROPN
ajst-28818	232	12	41	41	NUM
ajst-28818	232	13	30	30	NUM
ajst-28818	232	14	t	t	NOUN
ajst-28818	232	15	t	t	NOUN
ajst-28818	232	16	42	42	NUM
ajst-28818	232	17	2	2	NUM
ajst-28818	232	18	1	1	NUM
ajst-28818	232	19	0	0	NUM
ajst-28818	232	20	0	0	NUM
ajst-28818	233	1	t	t	NOUN
ajst-28818	233	2	t	t	NOUN
ajst-28818	233	3	t	t	PROPN
ajst-28818	233	4	51	51	NUM
ajst-28818	233	5	0	0	NUM
ajst-28818	233	6	t	t	NOUN
ajst-28818	233	7	t	t	NOUN
ajst-28818	233	8	52	52	NUM
ajst-28818	233	9	2	2	NUM
ajst-28818	233	10	1	1	NUM
ajst-28818	233	11	0	0	NUM
ajst-28818	233	12	0	0	NUM
ajst-28818	233	13	t	t	NOUN
ajst-28818	233	14	t	t	PROPN
ajst-28818	233	15	61	61	NUM
ajst-28818	233	16	0	0	NUM
ajst-28818	233	17	62	62	NUM
ajst-28818	233	18	2	2	NUM
ajst-28818	233	19	1	1	NUM
ajst-28818	233	20	d	d	SYM
ajst-28818	233	21	2	2	NUM
ajst-28818	233	22	d	d	NOUN
ajst-28818	233	23	d	d	NOUN
ajst-28818	233	24	2	2	NUM
ajst-28818	233	25	3	3	NUM
ajst-28818	233	26	d	d	SYM
ajst-28818	233	27	2	2	NUM
ajst-28818	233	28	3	3	NUM
ajst-28818	233	29	d	d	NOUN
ajst-28818	233	30	d	d	SYM
ajst-28818	233	31	2	2	NUM
ajst-28818	233	32	d	d	NOUN
ajst-28818	233	33	e	e	X
ajst-28818	233	34	e	e	X
ajst-28818	233	35	e	e	X
ajst-28818	233	36	e	e	X
ajst-28818	233	37	e	e	X
ajst-28818	233	38	e	e	X
ajst-28818	233	39	e	e	X
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ajst-28818	233	41	l	l	X
ajst-28818	233	42	l	l	X
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ajst-28818	233	45	l	l	X
ajst-28818	233	46	l	l	NOUN
ajst-28818	233	47	ea	ea	X
ajst-28818	233	48	z	z	PROPN
ajst-28818	233	49	ea	ea	PROPN
ajst-28818	233	50	w	w	PROPN
ajst-28818	233	51	w	w	PROPN
ajst-28818	233	52	z	z	PROPN
ajst-28818	233	53	z	z	NOUN
ajst-28818	233	54	l	l	NOUN
ajst-28818	233	55	ei	ei	X
ajst-28818	233	56	z	z	NOUN
ajst-28818	233	57	ei	ei	PROPN
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ajst-28818	233	59	w	w	PROPN
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ajst-28818	233	69			NOUN
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ajst-28818	233	71			NOUN
ajst-28818	233	72			NOUN
ajst-28818	233	73			NOUN
ajst-28818	233	74			X
ajst-28818	233	75			ADJ
ajst-28818	233	76			ADJ
ajst-28818	233	77			ADP
ajst-28818	233	78			ADJ
ajst-28818	233	79			PROPN
ajst-28818	233	80			ADJ
ajst-28818	233	81			CCONJ
ajst-28818	233	82			ADP
ajst-28818	233	83			ADJ
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ajst-28818	233	85			NOUN
ajst-28818	233	86			VERB
ajst-28818	233	87			CCONJ
ajst-28818	233	88			PROPN
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ajst-28818	233	92			X
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ajst-28818	233	97			NOUN
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ajst-28818	233	99			CCONJ
ajst-28818	233	100			ADJ
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ajst-28818	233	102			NUM
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ajst-28818	233	104			X
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ajst-28818	233	107			X
ajst-28818	233	108			NOUN
ajst-28818	233	109			NOUN
ajst-28818	233	110			SYM
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ajst-28818	233	112	1	1	NUM
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ajst-28818	233	120	1	1	NUM
ajst-28818	233	121	1	1	NUM
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ajst-28818	233	123	2	2	NUM
ajst-28818	233	124	1	1	NUM
ajst-28818	233	125	1	1	NUM
ajst-28818	233	126	2	2	NUM
ajst-28818	233	127	2	2	NUM
ajst-28818	233	128	3	3	NUM
ajst-28818	233	129	4	4	NUM
ajst-28818	233	130	4	4	NUM
ajst-28818	233	131	4	4	NUM
ajst-28818	233	132	k	k	PROPN
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ajst-28818	233	137	φ	φ	PROPN
ajst-28818	233	138	φ	φ	PROPN
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ajst-28818	235	1	φ	φ	PROPN
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ajst-28818	236	1	φ	φ	PROPN
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ajst-28818	237	1	φ	φ	PROPN
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ajst-28818	237	3			PROPN
ajst-28818	237	4			NOUN
ajst-28818	237	5			PROPN
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ajst-28818	237	9	7	7	NUM
ajst-28818	237	10	3	3	NUM
ajst-28818	237	11	32	32	NUM
ajst-28818	237	12	1	1	NUM
ajst-28818	237	13	0	0	NUM
ajst-28818	237	14	t	t	NOUN
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ajst-28818	237	16	t	t	PROPN
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ajst-28818	237	19	d	d	NOUN
ajst-28818	237	20	d	d	PROPN
ajst-28818	237	21	(	(	PUNCT
ajst-28818	237	22	)	)	PUNCT
ajst-28818	237	23	d	d	X
ajst-28818	237	24	e	e	X
ajst-28818	237	25	e	e	X
ajst-28818	237	26	e	e	X
ajst-28818	237	27	l	l	NOUN
ajst-28818	237	28	l	l	X
ajst-28818	237	29	l	l	X
ajst-28818	237	30	z	z	X
ajst-28818	237	31	ea	ea	PROPN
ajst-28818	238	1	zw	zw	PROPN
ajst-28818	238	2	w	w	PROPN
ajst-28818	238	3	l	l	PROPN
ajst-28818	238	4	e	e	NOUN
ajst-28818	238	5	g	g	NOUN
ajst-28818	238	6	i	i	PRON
ajst-28818	238	7	z	z	NOUN
ajst-28818	238	8			NOUN
ajst-28818	238	9			VERB
ajst-28818	238	10			ADP
ajst-28818	239	1			NUM
ajst-28818	239	2			NUM
ajst-28818	239	3			NUM
ajst-28818	239	4			NUM
ajst-28818	239	5			NUM
ajst-28818	239	6			NUM
ajst-28818	239	7			NUM
ajst-28818	239	8			NUM
ajst-28818	239	9			NOUN
ajst-28818	240	1			NUM
ajst-28818	240	2			NUM
ajst-28818	240	3			NUM
ajst-28818	240	4			NUM
ajst-28818	240	5			ADJ
ajst-28818	240	6			NOUN
ajst-28818	240	7			NUM
ajst-28818	240	8			NUM
ajst-28818	240	9			ADJ
ajst-28818	240	10			NOUN
ajst-28818	240	11			NOUN
ajst-28818	240	12			NUM
ajst-28818	240	13			NUM
ajst-28818	240	14			ADJ
ajst-28818	240	15			CCONJ
ajst-28818	240	16			PROPN
ajst-28818	241	1			PROPN
ajst-28818	241	2			PROPN
ajst-28818	241	3			NOUN
ajst-28818	241	4			PROPN
ajst-28818	241	5			NOUN
ajst-28818	242	1			NOUN
ajst-28818	243	1			SYM
ajst-28818	243	2	4	4	NUM
ajst-28818	243	3	4	4	NUM
ajst-28818	243	4	1	1	NUM
ajst-28818	243	5	2	2	NUM
ajst-28818	243	6	1	1	NUM
ajst-28818	243	7	2	2	NUM
ajst-28818	243	8	φ	φ	PROPN
ajst-28818	243	9	k	k	PROPN
ajst-28818	243	10	φ	φ	PROPN
ajst-28818	243	11	φ	φ	PROPN
ajst-28818	243	12	k	k	PROPN
ajst-28818	243	13	φ	φ	PROPN
ajst-28818	243	14	d	d	PROPN
ajst-28818	243	15	φ	φ	PROPN
ajst-28818	243	16	φ	φ	PROPN
ajst-28818	243	17	φ	φ	PROPN
ajst-28818	243	18	φ	φ	PROPN
ajst-28818	243	19	(	(	PUNCT
ajst-28818	243	20	32b	32b	NOUN
ajst-28818	243	21	)	)	PUNCT
ajst-28818	243	22	where	where	SCONJ
ajst-28818	243	23	,	,	PUNCT
ajst-28818	243	24	4ik	4ik	ADJ
ajst-28818	243	25	and	and	CCONJ
ajst-28818	243	26	5ik	5ik	NOUN
ajst-28818	243	27	are	be	AUX
ajst-28818	243	28	the	the	DET
ajst-28818	243	29	axial	axial	ADJ
ajst-28818	243	30	and	and	CCONJ
ajst-28818	243	31	lateral	lateral	ADJ
ajst-28818	243	32	coupling	coupling	NOUN
ajst-28818	243	33	stiffness	stiffness	ADJ
ajst-28818	243	34	matrices	matrix	NOUN
ajst-28818	243	35	,	,	PUNCT
ajst-28818	243	36	6ik	6ik	NOUN
ajst-28818	243	37	is	be	AUX
ajst-28818	243	38	the	the	DET
ajst-28818	243	39	axial	axial	ADJ
ajst-28818	243	40	and	and	CCONJ
ajst-28818	243	41	torsional	torsional	ADJ
ajst-28818	243	42	coupling	couple	VERB
ajst-28818	243	43	stiffness	stiffness	ADJ
ajst-28818	243	44	matrix	matrix	NOUN
ajst-28818	243	45	,	,	PUNCT
ajst-28818	243	46	7k	7k	PROPN
ajst-28818	243	47	is	be	AUX
ajst-28818	243	48	the	the	DET
ajst-28818	243	49	nonlinear	nonlinear	ADJ
ajst-28818	243	50	axial	axial	ADJ
ajst-28818	243	51	stiffness	stiffness	NOUN
ajst-28818	243	52	matrix	matrix	NOUN
ajst-28818	243	53	,	,	PUNCT
ajst-28818	243	54	8k	8k	PROPN
ajst-28818	243	55	is	be	AUX
ajst-28818	243	56	the	the	DET
ajst-28818	243	57	lateral	lateral	ADJ
ajst-28818	243	58	and	and	CCONJ
ajst-28818	243	59	torsional	torsional	ADJ
ajst-28818	243	60	coupling	couple	VERB
ajst-28818	243	61	stiffness	stiffness	ADJ
ajst-28818	243	62	matrix	matrix	NOUN
ajst-28818	243	63	.	.	PUNCT
ajst-28818	244	1	the	the	DET
ajst-28818	244	2	dynamic	dynamic	ADJ
ajst-28818	244	3	equation	equation	NOUN
ajst-28818	244	4	(	(	PUNCT
ajst-28818	244	5	30	30	NUM
ajst-28818	244	6	)	)	PUNCT
ajst-28818	244	7	of	of	ADP
ajst-28818	244	8	drill	drill	NOUN
ajst-28818	244	9	-	-	PUNCT
ajst-28818	244	10	string	string	NOUN
ajst-28818	244	11	element	element	NOUN
ajst-28818	244	12	considering	consider	VERB
ajst-28818	244	13	viscous	viscous	ADJ
ajst-28818	244	14	damping	damping	NOUN
ajst-28818	244	15	of	of	ADP
ajst-28818	244	16	drilling	drilling	NOUN
ajst-28818	244	17	fluid	fluid	NOUN
ajst-28818	244	18	is	be	AUX
ajst-28818	244	19	rewritten	rewrite	VERB
ajst-28818	244	20	as	as	ADP
ajst-28818	244	21	:	:	PUNCT
ajst-28818	244	22	e	e	X
ajst-28818	244	23	ie	ie	X
ajst-28818	244	24	ie	ie	PROPN
ajst-28818	244	25			X
ajst-28818	244	26	m	m	PROPN
ajst-28818	244	27	d	d	X
ajst-28818	244	28	c	c	PROPN
ajst-28818	244	29	d	d	X
ajst-28818	244	30	k	k	PROPN
ajst-28818	244	31	d	d	X
ajst-28818	244	32	f	f	ADJ
ajst-28818	244	33			NOUN
ajst-28818	244	34	(	(	PUNCT
ajst-28818	244	35	33	33	NUM
ajst-28818	244	36	)	)	PUNCT
ajst-28818	244	37	where	where	SCONJ
ajst-28818	244	38	,	,	PUNCT
ajst-28818	244	39	iec	iec	PROPN
ajst-28818	244	40	is	be	AUX
ajst-28818	244	41	the	the	DET
ajst-28818	244	42	element	element	NOUN
ajst-28818	244	43	damping	damp	VERB
ajst-28818	244	44	matrix	matrix	NOUN
ajst-28818	244	45	,	,	PUNCT
ajst-28818	244	46	the	the	DET
ajst-28818	244	47	viscous	viscous	ADJ
ajst-28818	244	48	damping	damping	NOUN
ajst-28818	244	49	of	of	ADP
ajst-28818	244	50	drilling	drilling	NOUN
ajst-28818	244	51	fluid	fluid	NOUN
ajst-28818	244	52	is	be	AUX
ajst-28818	244	53	commonly	commonly	ADV
ajst-28818	244	54	treated	treat	VERB
ajst-28818	244	55	as	as	ADP
ajst-28818	244	56	rayleigh	rayleigh	PROPN
ajst-28818	244	57	damping	damping	NOUN
ajst-28818	244	58	,	,	PUNCT
ajst-28818	244	59	which	which	PRON
ajst-28818	244	60	is	be	AUX
ajst-28818	244	61	represented	represent	VERB
ajst-28818	244	62	by	by	ADP
ajst-28818	244	63	a	a	DET
ajst-28818	244	64	linear	linear	ADJ
ajst-28818	244	65	combination	combination	NOUN
ajst-28818	244	66	of	of	ADP
ajst-28818	244	67	stiffness	stiffness	ADJ
ajst-28818	244	68	matrix	matrix	NOUN
ajst-28818	244	69	and	and	CCONJ
ajst-28818	244	70	mass	mass	ADJ
ajst-28818	244	71	matrix	matrix	NOUN
ajst-28818	244	72	:	:	PUNCT
ajst-28818	244	73	ie	ie	X
ajst-28818	244	74	e	e	NOUN
ajst-28818	244	75	ie	ie	NOUN
ajst-28818	244	76			VERB
ajst-28818	245	1	c	c	PROPN
ajst-28818	245	2	m	m	PROPN
ajst-28818	245	3	k	k	X
ajst-28818	245	4	(	(	PUNCT
ajst-28818	245	5	34	34	NUM
ajst-28818	245	6	)	)	PUNCT
ajst-28818	245	7	where	where	SCONJ
ajst-28818	245	8	,	,	PUNCT
ajst-28818	245	9			NUM
ajst-28818	245	10	is	be	AUX
ajst-28818	245	11	the	the	DET
ajst-28818	245	12	mass	mass	ADJ
ajst-28818	245	13	proportional	proportional	ADJ
ajst-28818	245	14	coefficient	coefficient	NOUN
ajst-28818	245	15	,	,	PUNCT
ajst-28818	245	16			PROPN
ajst-28818	245	17	is	be	AUX
ajst-28818	245	18	the	the	DET
ajst-28818	245	19	stiffness	stiffness	ADJ
ajst-28818	245	20	proportional	proportional	ADJ
ajst-28818	245	21	coefficient	coefficient	NOUN
ajst-28818	245	22	,	,	PUNCT
ajst-28818	245	23	which	which	PRON
ajst-28818	245	24	are	be	AUX
ajst-28818	245	25	calculated	calculate	VERB
ajst-28818	245	26	as	as	SCONJ
ajst-28818	245	27	follows	follow	VERB
ajst-28818	245	28	:	:	PUNCT
ajst-28818	245	29	0	0	NUM
ajst-28818	245	30	0	0	NUM
ajst-28818	245	31	2	2	NUM
ajst-28818	245	32	2	2	NUM
ajst-28818	245	33	=	=	NOUN
ajst-28818	245	34	,	,	PUNCT
ajst-28818	246	1	=	=	PROPN
ajst-28818	246	2	i	i	NOUN
ajst-28818	246	3	j	j	VERB
ajst-28818	247	1	i	i	PRON
ajst-28818	247	2	j	j	VERB
ajst-28818	248	1	i	i	PRON
ajst-28818	248	2	j	j	PROPN
ajst-28818	248	3			X
ajst-28818	248	4			X
ajst-28818	248	5			PROPN
ajst-28818	248	6			PROPN
ajst-28818	248	7			X
ajst-28818	248	8			X
ajst-28818	248	9			X
ajst-28818	248	10			X
ajst-28818	248	11			X
ajst-28818	248	12	(	(	PUNCT
ajst-28818	248	13	35	35	NUM
ajst-28818	248	14	)	)	PUNCT
ajst-28818	248	15	where	where	SCONJ
ajst-28818	248	16	,	,	PUNCT
ajst-28818	248	17	0	0	NUM
ajst-28818	248	18	is	be	AUX
ajst-28818	248	19	the	the	DET
ajst-28818	248	20	target	target	NOUN
ajst-28818	248	21	damping	damp	VERB
ajst-28818	248	22	ratio	ratio	NOUN
ajst-28818	248	23	.	.	PUNCT
ajst-28818	249	1	in	in	ADP
ajst-28818	249	2	this	this	DET
ajst-28818	249	3	paper	paper	NOUN
ajst-28818	249	4	,	,	PUNCT
ajst-28818	249	5	0	0	NUM
ajst-28818	249	6	=	=	SYM
ajst-28818	249	7	0.03	0.03	NUM
ajst-28818	249	8	is	be	AUX
ajst-28818	249	9	selected	select	VERB
ajst-28818	249	10	.	.	PUNCT
ajst-28818	250	1	i	i	PROPN
ajst-28818	250	2	is	be	AUX
ajst-28818	250	3	the	the	DET
ajst-28818	250	4	first	first	ADJ
ajst-28818	250	5	-	-	PUNCT
ajst-28818	250	6	order	order	NOUN
ajst-28818	250	7	natural	natural	ADJ
ajst-28818	250	8	frequency	frequency	NOUN
ajst-28818	250	9	.	.	PUNCT
ajst-28818	251	1	to	to	PART
ajst-28818	251	2	avoid	avoid	VERB
ajst-28818	251	3	excessive	excessive	ADJ
ajst-28818	251	4	damping	damping	NOUN
ajst-28818	251	5	of	of	ADP
ajst-28818	251	6	the	the	DET
ajst-28818	251	7	high	high	ADJ
ajst-28818	251	8	-	-	PUNCT
ajst-28818	251	9	frequency	frequency	NOUN
ajst-28818	251	10	vibrations	vibration	NOUN
ajst-28818	251	11	,	,	PUNCT
ajst-28818	251	12	287	287	NUM
ajst-28818	251	13	the	the	DET
ajst-28818	251	14	natural	natural	ADJ
ajst-28818	251	15	frequency	frequency	NOUN
ajst-28818	251	16	of	of	ADP
ajst-28818	251	17	order	order	NOUN
ajst-28818	251	18	10	10	NUM
ajst-28818	251	19	(	(	PUNCT
ajst-28818	251	20	moharrami	moharrami	NOUN
ajst-28818	251	21	et	et	PROPN
ajst-28818	251	22	al	al	PROPN
ajst-28818	251	23	.	.	PROPN
ajst-28818	251	24	,	,	PUNCT
ajst-28818	251	25	2021	2021	NUM
ajst-28818	251	26	)	)	PUNCT
ajst-28818	251	27	.	.	PUNCT
ajst-28818	252	1	for	for	ADP
ajst-28818	252	2	linear	linear	PROPN
ajst-28818	252	3	systems	system	NOUN
ajst-28818	252	4	,	,	PUNCT
ajst-28818	252	5	the	the	DET
ajst-28818	252	6	natural	natural	ADJ
ajst-28818	252	7	frequencies	frequency	NOUN
ajst-28818	252	8	of	of	ADP
ajst-28818	252	9	the	the	DET
ajst-28818	252	10	drillstring	drillstring	NOUN
ajst-28818	252	11	are	be	AUX
ajst-28818	252	12	different	different	ADJ
ajst-28818	252	13	in	in	ADP
ajst-28818	252	14	axial	axial	ADJ
ajst-28818	252	15	,	,	PUNCT
ajst-28818	252	16	lateral	lateral	ADJ
ajst-28818	252	17	,	,	PUNCT
ajst-28818	252	18	and	and	CCONJ
ajst-28818	252	19	torsional	torsional	ADJ
ajst-28818	252	20	ways	way	NOUN
ajst-28818	252	21	,	,	PUNCT
ajst-28818	252	22	so	so	SCONJ
ajst-28818	252	23	the	the	DET
ajst-28818	252	24	damping	damp	VERB
ajst-28818	252	25	matrices	matrix	NOUN
ajst-28818	252	26	of	of	ADP
ajst-28818	252	27	axial	axial	ADJ
ajst-28818	252	28	,	,	PUNCT
ajst-28818	252	29	lateral	lateral	ADJ
ajst-28818	252	30	,	,	PUNCT
ajst-28818	252	31	and	and	CCONJ
ajst-28818	252	32	torsional	torsional	ADJ
ajst-28818	252	33	ways	way	NOUN
ajst-28818	252	34	are	be	AUX
ajst-28818	252	35	also	also	ADV
ajst-28818	252	36	different	different	ADJ
ajst-28818	252	37	,	,	PUNCT
ajst-28818	252	38	which	which	PRON
ajst-28818	252	39	can	can	AUX
ajst-28818	252	40	be	be	AUX
ajst-28818	252	41	expressed	express	VERB
ajst-28818	252	42	as	as	ADP
ajst-28818	252	43	:	:	SYM
ajst-28818	252	44	1	1	NUM
ajst-28818	252	45	2	2	NUM
ajst-28818	252	46	1	1	NUM
ajst-28818	252	47	3	3	NUM
ajst-28818	252	48	2	2	NUM
ajst-28818	252	49	4	4	NUM
ajst-28818	252	50	3	3	NUM
ajst-28818	252	51	u	u	NOUN
ajst-28818	252	52	u	u	NOUN
ajst-28818	252	53	u	u	PROPN
ajst-28818	252	54	w	w	PROPN
ajst-28818	252	55	w	w	PROPN
ajst-28818	252	56	w	w	PROPN
ajst-28818	252	57			PROPN
ajst-28818	252	58			PROPN
ajst-28818	252	59			PROPN
ajst-28818	252	60			X
ajst-28818	252	61			PROPN
ajst-28818	252	62			NUM
ajst-28818	252	63			PROPN
ajst-28818	252	64			NOUN
ajst-28818	252	65			PROPN
ajst-28818	252	66			PROPN
ajst-28818	252	67			ADV
ajst-28818	252	68			NUM
ajst-28818	252	69			NUM
ajst-28818	252	70			NUM
ajst-28818	252	71			NOUN
ajst-28818	252	72			PRON
ajst-28818	252	73			NOUN
ajst-28818	253	1			SCONJ
ajst-28818	253	2	c	c	NOUN
ajst-28818	253	3	m	m	VERB
ajst-28818	253	4	m	m	VERB
ajst-28818	253	5	k	k	X
ajst-28818	254	1	c	c	NOUN
ajst-28818	254	2	m	m	VERB
ajst-28818	254	3	k	k	NOUN
ajst-28818	255	1	c	c	NOUN
ajst-28818	255	2	m	m	VERB
ajst-28818	255	3	k	k	NOUN
ajst-28818	255	4	（	（	PUNCT
ajst-28818	255	5	）	）	PUNCT
ajst-28818	255	6	(	(	PUNCT
ajst-28818	255	7	36a	36a	NOUN
ajst-28818	255	8	)	)	PUNCT
ajst-28818	255	9	for	for	ADP
ajst-28818	255	10	the	the	DET
ajst-28818	255	11	coupling	coupling	NOUN
ajst-28818	255	12	part	part	NOUN
ajst-28818	255	13	,	,	PUNCT
ajst-28818	255	14	the	the	DET
ajst-28818	255	15	damping	damp	VERB
ajst-28818	255	16	matrix	matrix	NOUN
ajst-28818	255	17	is	be	AUX
ajst-28818	255	18	expressed	express	VERB
ajst-28818	255	19	as	as	ADP
ajst-28818	255	20	:	:	PUNCT
ajst-28818	255	21			NOUN
ajst-28818	256	1			PROPN
ajst-28818	256	2			NOUN
ajst-28818	256	3			SYM
ajst-28818	256	4			NOUN
ajst-28818	256	5			PROPN
ajst-28818	256	6	t	t	PROPN
ajst-28818	256	7	t	t	NOUN
ajst-28818	256	8	4	4	NUM
ajst-28818	256	9	4	4	NUM
ajst-28818	256	10	5	5	NUM
ajst-28818	256	11	5	5	NUM
ajst-28818	256	12	t	t	NOUN
ajst-28818	256	13	6	6	NUM
ajst-28818	256	14	6	6	NUM
ajst-28818	256	15	7	7	NUM
ajst-28818	256	16	t	t	NOUN
ajst-28818	256	17	8	8	NUM
ajst-28818	256	18	8	8	NUM
ajst-28818	256	19	uwi	uwi	NOUN
ajst-28818	256	20	u	u	NOUN
ajst-28818	256	21	w	w	NOUN
ajst-28818	256	22	i	i	PRON
ajst-28818	257	1	i	i	PRON
ajst-28818	257	2	i	i	PRON
ajst-28818	258	1	i	i	INTJ
ajst-28818	258	2	w	w	VERB
ajst-28818	259	1	i	i	INTJ
ajst-28818	259	2	w	w	VERB
ajst-28818	260	1	i	i	PRON
ajst-28818	261	1	i	i	PRON
ajst-28818	261	2	ww	ww	PROPN
ajst-28818	261	3	w	w	PROPN
ajst-28818	261	4	w	w	PROPN
ajst-28818	261	5	u	u	PROPN
ajst-28818	261	6	u	u	NOUN
ajst-28818	261	7			X
ajst-28818	261	8			X
ajst-28818	261	9			PROPN
ajst-28818	262	1			PROPN
ajst-28818	263	1			PROPN
ajst-28818	263	2			PROPN
ajst-28818	263	3			PROPN
ajst-28818	263	4			PROPN
ajst-28818	263	5			PROPN
ajst-28818	263	6			PROPN
ajst-28818	263	7			PROPN
ajst-28818	263	8			PROPN
ajst-28818	263	9			ADP
ajst-28818	263	10			PROPN
ajst-28818	263	11			ADV
ajst-28818	263	12			PUNCT
ajst-28818	263	13			PUNCT
ajst-28818	263	14			PRON
ajst-28818	263	15			NUM
ajst-28818	263	16			NOUN
ajst-28818	263	17			NOUN
ajst-28818	263	18			NUM
ajst-28818	263	19			NOUN
ajst-28818	263	20			NUM
ajst-28818	264	1			NOUN
ajst-28818	264	2			PROPN
ajst-28818	264	3	c	c	NOUN
ajst-28818	264	4	k	k	PROPN
ajst-28818	265	1	k	k	PROPN
ajst-28818	265	2	k	k	PROPN
ajst-28818	266	1	k	k	PROPN
ajst-28818	266	2	c	c	PROPN
ajst-28818	267	1	k	k	PROPN
ajst-28818	267	2	k	k	PROPN
ajst-28818	267	3	c	c	X
ajst-28818	268	1	k	k	PROPN
ajst-28818	268	2	c	c	PROPN
ajst-28818	268	3	k	k	PROPN
ajst-28818	268	4	k	k	X
ajst-28818	268	5	(	(	PUNCT
ajst-28818	268	6	36b	36b	NOUN
ajst-28818	268	7	)	)	PUNCT
ajst-28818	268	8	thus	thus	ADV
ajst-28818	268	9	,	,	PUNCT
ajst-28818	268	10	the	the	DET
ajst-28818	268	11	damping	damp	VERB
ajst-28818	268	12	matrix	matrix	NOUN
ajst-28818	268	13	of	of	ADP
ajst-28818	268	14	the	the	DET
ajst-28818	268	15	element	element	NOUN
ajst-28818	268	16	can	can	AUX
ajst-28818	268	17	be	be	AUX
ajst-28818	268	18	expressed	express	VERB
ajst-28818	268	19	as	as	ADP
ajst-28818	268	20	:	:	PUNCT
ajst-28818	268	21	ie	ie	X
ajst-28818	268	22	u	u	PROPN
ajst-28818	268	23	w	w	PROPN
ajst-28818	268	24	uwi	uwi	PROPN
ajst-28818	268	25	w	w	NOUN
ajst-28818	269	1	i	i	PRON
ajst-28818	269	2	ww	ww	PROPN
ajst-28818	269	3	u	u	PROPN
ajst-28818	269	4			PROPN
ajst-28818	269	5			PROPN
ajst-28818	269	6			PROPN
ajst-28818	269	7			PROPN
ajst-28818	269	8			PROPN
ajst-28818	269	9			PUNCT
ajst-28818	269	10			PUNCT
ajst-28818	269	11	c	c	PROPN
ajst-28818	270	1	c	c	PROPN
ajst-28818	271	1	c	c	NOUN
ajst-28818	271	2	c	c	NOUN
ajst-28818	271	3	c	c	NOUN
ajst-28818	271	4	c	c	NOUN
ajst-28818	271	5	c	c	NOUN
ajst-28818	271	6	c	c	X
ajst-28818	271	7	(	(	PUNCT
ajst-28818	271	8	37	37	NUM
ajst-28818	271	9	)	)	PUNCT
ajst-28818	271	10	it	it	PRON
ajst-28818	271	11	can	can	AUX
ajst-28818	271	12	be	be	AUX
ajst-28818	271	13	noted	note	VERB
ajst-28818	271	14	that	that	SCONJ
ajst-28818	271	15	the	the	DET
ajst-28818	271	16	element	element	ADJ
ajst-28818	271	17	stiffness	stiffness	NOUN
ajst-28818	271	18	matrix	matrix	NOUN
ajst-28818	271	19	and	and	CCONJ
ajst-28818	271	20	damping	damp	VERB
ajst-28818	271	21	matrix	matrix	NOUN
ajst-28818	271	22	are	be	AUX
ajst-28818	271	23	related	relate	VERB
ajst-28818	271	24	to	to	ADP
ajst-28818	271	25	the	the	DET
ajst-28818	271	26	element	element	NOUN
ajst-28818	271	27	generalized	generalize	VERB
ajst-28818	271	28	displacement	displacement	NOUN
ajst-28818	271	29	d	d	NOUN
ajst-28818	271	30	at	at	ADP
ajst-28818	271	31	every	every	DET
ajst-28818	271	32	moment	moment	NOUN
ajst-28818	271	33	,	,	PUNCT
ajst-28818	271	34	so	so	ADV
ajst-28818	271	35	they	they	PRON
ajst-28818	271	36	are	be	AUX
ajst-28818	271	37	time	time	NOUN
ajst-28818	271	38	-	-	PUNCT
ajst-28818	271	39	varying	vary	VERB
ajst-28818	271	40	.	.	PUNCT
ajst-28818	272	1	2.5	2.5	NUM
ajst-28818	272	2	.	.	PUNCT
ajst-28818	272	3	solution	solution	NOUN
ajst-28818	272	4	scheme	scheme	VERB
ajst-28818	272	5	the	the	DET
ajst-28818	272	6	drill	drill	NOUN
ajst-28818	272	7	-	-	PUNCT
ajst-28818	272	8	string	string	NOUN
ajst-28818	272	9	element	element	NOUN
ajst-28818	272	10	is	be	AUX
ajst-28818	272	11	assembled	assemble	VERB
ajst-28818	272	12	to	to	PART
ajst-28818	272	13	obtain	obtain	VERB
ajst-28818	272	14	the	the	DET
ajst-28818	272	15	dynamic	dynamic	ADJ
ajst-28818	272	16	equation	equation	NOUN
ajst-28818	272	17	(	(	PUNCT
ajst-28818	272	18	1	1	NUM
ajst-28818	272	19	)	)	PUNCT
ajst-28818	272	20	of	of	ADP
ajst-28818	272	21	the	the	DET
ajst-28818	272	22	overall	overall	ADJ
ajst-28818	272	23	discrete	discrete	ADJ
ajst-28818	272	24	form	form	NOUN
ajst-28818	272	25	of	of	ADP
ajst-28818	272	26	the	the	DET
ajst-28818	272	27	drill	drill	NOUN
ajst-28818	272	28	-	-	PUNCT
ajst-28818	272	29	string	string	NOUN
ajst-28818	272	30	.	.	PUNCT
ajst-28818	273	1	since	since	SCONJ
ajst-28818	273	2	the	the	DET
ajst-28818	273	3	stiffness	stiffness	ADJ
ajst-28818	273	4	matrix	matrix	NOUN
ajst-28818	273	5	and	and	CCONJ
ajst-28818	273	6	damping	damp	VERB
ajst-28818	273	7	matrix	matrix	NOUN
ajst-28818	273	8	of	of	ADP
ajst-28818	273	9	the	the	DET
ajst-28818	273	10	drillstring	drillstring	NOUN
ajst-28818	273	11	element	element	NOUN
ajst-28818	273	12	have	have	VERB
ajst-28818	273	13	two	two	NUM
ajst-28818	273	14	different	different	ADJ
ajst-28818	273	15	forms	form	NOUN
ajst-28818	273	16	,	,	PUNCT
ajst-28818	273	17	equation	equation	NOUN
ajst-28818	273	18	(	(	PUNCT
ajst-28818	273	19	1	1	X
ajst-28818	273	20	)	)	PUNCT
ajst-28818	273	21	is	be	AUX
ajst-28818	273	22	rewritten	rewrite	VERB
ajst-28818	273	23	as	as	ADP
ajst-28818	273	24	:	:	PUNCT
ajst-28818	273	25	(	(	PUNCT
ajst-28818	273	26	)	)	PUNCT
ajst-28818	273	27	(	(	PUNCT
ajst-28818	273	28	)	)	PUNCT
ajst-28818	273	29	(	(	PUNCT
ajst-28818	273	30	)	)	PUNCT
ajst-28818	273	31	i	i	PRON
ajst-28818	273	32	it	it	PRON
ajst-28818	273	33	t	t	VERB
ajst-28818	273	34	t	t	DET
ajst-28818	273	35			ADJ
ajst-28818	273	36	md	md	NOUN
ajst-28818	273	37	c	c	PROPN
ajst-28818	273	38	d	d	X
ajst-28818	273	39	k	k	PROPN
ajst-28818	273	40	d	d	X
ajst-28818	273	41	f	f	ADJ
ajst-28818	273	42			NOUN
ajst-28818	273	43	(	(	PUNCT
ajst-28818	273	44	38	38	NUM
ajst-28818	273	45	)	)	PUNCT
ajst-28818	273	46	where	where	SCONJ
ajst-28818	273	47	,	,	PUNCT
ajst-28818	273	48	c	c	PROPN
ajst-28818	273	49	and	and	CCONJ
ajst-28818	273	50	k	k	PROPN
ajst-28818	273	51	are	be	AUX
ajst-28818	273	52	the	the	DET
ajst-28818	273	53	overall	overall	ADJ
ajst-28818	273	54	mass	mass	ADJ
ajst-28818	273	55	matrix	matrix	NOUN
ajst-28818	273	56	and	and	CCONJ
ajst-28818	273	57	damping	damp	VERB
ajst-28818	273	58	matrix	matrix	NOUN
ajst-28818	273	59	of	of	ADP
ajst-28818	273	60	the	the	DET
ajst-28818	273	61	drill	drill	NOUN
ajst-28818	273	62	-	-	PUNCT
ajst-28818	273	63	string	string	NOUN
ajst-28818	273	64	,	,	PUNCT
ajst-28818	273	65	respectively	respectively	ADV
ajst-28818	273	66	.	.	PUNCT
ajst-28818	274	1	equation	equation	NOUN
ajst-28818	274	2	(	(	PUNCT
ajst-28818	274	3	38	38	NUM
ajst-28818	274	4	)	)	PUNCT
ajst-28818	274	5	is	be	AUX
ajst-28818	274	6	a	a	DET
ajst-28818	274	7	set	set	NOUN
ajst-28818	274	8	of	of	ADP
ajst-28818	274	9	second	second	ADJ
ajst-28818	274	10	-	-	PUNCT
ajst-28818	274	11	order	order	NOUN
ajst-28818	274	12	ordinary	ordinary	ADJ
ajst-28818	274	13	differential	differential	ADJ
ajst-28818	274	14	equations	equation	NOUN
ajst-28818	274	15	,	,	PUNCT
ajst-28818	274	16	which	which	PRON
ajst-28818	274	17	can	can	AUX
ajst-28818	274	18	be	be	AUX
ajst-28818	274	19	solved	solve	VERB
ajst-28818	274	20	by	by	ADP
ajst-28818	274	21	standard	standard	ADJ
ajst-28818	274	22	methods	method	NOUN
ajst-28818	274	23	for	for	ADP
ajst-28818	274	24	ordinary	ordinary	ADJ
ajst-28818	274	25	differential	differential	ADJ
ajst-28818	274	26	equations	equation	NOUN
ajst-28818	274	27	.	.	PUNCT
ajst-28818	275	1	however	however	ADV
ajst-28818	275	2	,	,	PUNCT
ajst-28818	275	3	in	in	ADP
ajst-28818	275	4	the	the	DET
ajst-28818	275	5	finite	finite	ADJ
ajst-28818	275	6	element	element	ADJ
ajst-28818	275	7	dynamic	dynamic	ADJ
ajst-28818	275	8	response	response	NOUN
ajst-28818	275	9	analysis	analysis	NOUN
ajst-28818	275	10	,	,	PUNCT
ajst-28818	275	11	when	when	SCONJ
ajst-28818	275	12	the	the	DET
ajst-28818	275	13	order	order	NOUN
ajst-28818	275	14	of	of	ADP
ajst-28818	275	15	the	the	DET
ajst-28818	275	16	matrix	matrix	NOUN
ajst-28818	275	17	is	be	AUX
ajst-28818	275	18	high	high	ADJ
ajst-28818	275	19	,	,	PUNCT
ajst-28818	275	20	the	the	DET
ajst-28818	275	21	efficiency	efficiency	NOUN
ajst-28818	275	22	of	of	ADP
ajst-28818	275	23	the	the	DET
ajst-28818	275	24	standard	standard	ADJ
ajst-28818	275	25	algorithm	algorithm	NOUN
ajst-28818	275	26	is	be	AUX
ajst-28818	275	27	low	low	ADJ
ajst-28818	275	28	,	,	PUNCT
ajst-28818	275	29	so	so	ADV
ajst-28818	275	30	newmark	newmark	PROPN
ajst-28818	275	31	-	-	PUNCT
ajst-28818	275	32	β	β	PROPN
ajst-28818	275	33	is	be	AUX
ajst-28818	275	34	adopted	adopt	VERB
ajst-28818	275	35	in	in	ADP
ajst-28818	275	36	this	this	DET
ajst-28818	275	37	paper	paper	NOUN
ajst-28818	275	38	to	to	PART
ajst-28818	275	39	solve	solve	VERB
ajst-28818	275	40	the	the	DET
ajst-28818	275	41	discrete	discrete	ADJ
ajst-28818	275	42	equations	equation	NOUN
ajst-28818	275	43	(	(	PUNCT
ajst-28818	275	44	38	38	NUM
ajst-28818	275	45	)	)	PUNCT
ajst-28818	275	46	.	.	PUNCT
ajst-28818	276	1	due	due	ADP
ajst-28818	276	2	to	to	ADP
ajst-28818	276	3	the	the	DET
ajst-28818	276	4	large	large	ADJ
ajst-28818	276	5	slenderness	slenderness	NOUN
ajst-28818	276	6	ratio	ratio	NOUN
ajst-28818	276	7	of	of	ADP
ajst-28818	276	8	the	the	DET
ajst-28818	276	9	drill	drill	NOUN
ajst-28818	276	10	-	-	PUNCT
ajst-28818	276	11	string	string	NOUN
ajst-28818	276	12	,	,	PUNCT
ajst-28818	276	13	the	the	DET
ajst-28818	276	14	influence	influence	NOUN
ajst-28818	276	15	of	of	ADP
ajst-28818	276	16	the	the	DET
ajst-28818	276	17	axial	axial	ADJ
ajst-28818	276	18	tension	tension	NOUN
ajst-28818	276	19	of	of	ADP
ajst-28818	276	20	the	the	DET
ajst-28818	276	21	drill	drill	NOUN
ajst-28818	276	22	-	-	PUNCT
ajst-28818	276	23	string	string	NOUN
ajst-28818	276	24	on	on	ADP
ajst-28818	276	25	the	the	DET
ajst-28818	276	26	lateral	lateral	ADJ
ajst-28818	276	27	and	and	CCONJ
ajst-28818	276	28	torsional	torsional	ADJ
ajst-28818	276	29	stiffness	stiffness	NOUN
ajst-28818	276	30	can	can	AUX
ajst-28818	276	31	not	not	PART
ajst-28818	276	32	be	be	AUX
ajst-28818	276	33	ignored	ignore	VERB
ajst-28818	276	34	under	under	ADP
ajst-28818	276	35	the	the	DET
ajst-28818	276	36	action	action	NOUN
ajst-28818	276	37	of	of	ADP
ajst-28818	276	38	gravity	gravity	NOUN
ajst-28818	276	39	.	.	PUNCT
ajst-28818	277	1	for	for	ADP
ajst-28818	277	2	the	the	DET
ajst-28818	277	3	traditional	traditional	ADJ
ajst-28818	277	4	land	land	NOUN
ajst-28818	277	5	drill	drill	NOUN
ajst-28818	277	6	-	-	PUNCT
ajst-28818	277	7	string	string	NOUN
ajst-28818	277	8	,	,	PUNCT
ajst-28818	277	9	due	due	ADP
ajst-28818	277	10	to	to	ADP
ajst-28818	277	11	the	the	DET
ajst-28818	277	12	existence	existence	NOUN
ajst-28818	277	13	of	of	ADP
ajst-28818	277	14	borehole	borehole	NOUN
ajst-28818	277	15	wall	wall	NOUN
ajst-28818	277	16	constraints	constraint	NOUN
ajst-28818	277	17	,	,	PUNCT
ajst-28818	277	18	there	there	PRON
ajst-28818	277	19	will	will	AUX
ajst-28818	277	20	be	be	AUX
ajst-28818	277	21	no	no	DET
ajst-28818	277	22	large	large	ADJ
ajst-28818	277	23	lateral	lateral	ADJ
ajst-28818	277	24	displacement	displacement	NOUN
ajst-28818	277	25	,	,	PUNCT
ajst-28818	277	26	so	so	CCONJ
ajst-28818	277	27	the	the	DET
ajst-28818	277	28	impact	impact	NOUN
ajst-28818	277	29	of	of	ADP
ajst-28818	277	30	lateral	lateral	ADJ
ajst-28818	277	31	displacement	displacement	NOUN
ajst-28818	277	32	on	on	ADP
ajst-28818	277	33	the	the	DET
ajst-28818	277	34	axial	axial	ADJ
ajst-28818	277	35	direction	direction	NOUN
ajst-28818	277	36	can	can	AUX
ajst-28818	277	37	be	be	AUX
ajst-28818	277	38	ignored	ignore	VERB
ajst-28818	277	39	.	.	PUNCT
ajst-28818	278	1	however	however	ADV
ajst-28818	278	2	,	,	PUNCT
ajst-28818	278	3	for	for	ADP
ajst-28818	278	4	the	the	DET
ajst-28818	278	5	riserless	riserless	NOUN
ajst-28818	278	6	drill	drill	NOUN
ajst-28818	278	7	-	-	PUNCT
ajst-28818	278	8	string	string	NOUN
ajst-28818	278	9	,	,	PUNCT
ajst-28818	278	10	the	the	DET
ajst-28818	278	11	current	current	ADJ
ajst-28818	278	12	load	load	NOUN
ajst-28818	278	13	and	and	CCONJ
ajst-28818	278	14	the	the	DET
ajst-28818	278	15	platform	platform	NOUN
ajst-28818	278	16	movement	movement	NOUN
ajst-28818	278	17	force	force	VERB
ajst-28818	278	18	the	the	DET
ajst-28818	278	19	drill	drill	NOUN
ajst-28818	278	20	-	-	PUNCT
ajst-28818	278	21	string	string	NOUN
ajst-28818	278	22	to	to	PART
ajst-28818	278	23	produce	produce	VERB
ajst-28818	278	24	a	a	DET
ajst-28818	278	25	large	large	ADJ
ajst-28818	278	26	lateral	lateral	ADJ
ajst-28818	278	27	displacement	displacement	NOUN
ajst-28818	278	28	in	in	ADP
ajst-28818	278	29	the	the	DET
ajst-28818	278	30	seawater	seawater	NOUN
ajst-28818	278	31	section	section	NOUN
ajst-28818	278	32	,	,	PUNCT
ajst-28818	278	33	and	and	CCONJ
ajst-28818	278	34	the	the	DET
ajst-28818	278	35	axial	axial	ADJ
ajst-28818	278	36	vibration	vibration	NOUN
ajst-28818	278	37	caused	cause	VERB
ajst-28818	278	38	by	by	ADP
ajst-28818	278	39	the	the	DET
ajst-28818	278	40	lateral	lateral	ADJ
ajst-28818	278	41	motion	motion	NOUN
ajst-28818	278	42	can	can	AUX
ajst-28818	278	43	not	not	PART
ajst-28818	278	44	be	be	AUX
ajst-28818	278	45	ignored	ignore	VERB
ajst-28818	278	46	.	.	PUNCT
ajst-28818	279	1	whether	whether	SCONJ
ajst-28818	279	2	case	case	NOUN
ajst-28818	279	3	1i	1i	NOUN
ajst-28818	279	4			NOUN
ajst-28818	279	5	or	or	CCONJ
ajst-28818	279	6	case	case	NOUN
ajst-28818	279	7	2i	2i	NUM
ajst-28818	279	8			NUM
ajst-28818	279	9	,	,	PUNCT
ajst-28818	279	10	it	it	PRON
ajst-28818	279	11	can	can	AUX
ajst-28818	279	12	only	only	ADV
ajst-28818	279	13	satisfy	satisfy	VERB
ajst-28818	279	14	the	the	DET
ajst-28818	279	15	analysis	analysis	NOUN
ajst-28818	279	16	of	of	ADP
ajst-28818	279	17	unidirectional	unidirectional	ADJ
ajst-28818	279	18	coupled	couple	VERB
ajst-28818	279	19	vibration	vibration	NOUN
ajst-28818	279	20	.	.	PUNCT
ajst-28818	280	1	for	for	ADP
ajst-28818	280	2	a	a	DET
ajst-28818	280	3	deep	deep	ADJ
ajst-28818	280	4	-	-	PUNCT
ajst-28818	280	5	sea	sea	NOUN
ajst-28818	280	6	riserless	riserless	NOUN
ajst-28818	280	7	drill	drill	NOUN
ajst-28818	280	8	-	-	PUNCT
ajst-28818	280	9	string	string	NOUN
ajst-28818	280	10	,	,	PUNCT
ajst-28818	280	11	the	the	DET
ajst-28818	280	12	influence	influence	NOUN
ajst-28818	280	13	of	of	ADP
ajst-28818	280	14	axial	axial	ADJ
ajst-28818	280	15	tension	tension	NOUN
ajst-28818	280	16	on	on	ADP
ajst-28818	280	17	transverse	transverse	ADJ
ajst-28818	280	18	/	/	SYM
ajst-28818	280	19	torsional	torsional	ADJ
ajst-28818	280	20	stiffness	stiffness	NOUN
ajst-28818	280	21	and	and	CCONJ
ajst-28818	280	22	the	the	DET
ajst-28818	280	23	axial	axial	ADJ
ajst-28818	280	24	vibration	vibration	NOUN
ajst-28818	280	25	caused	cause	VERB
ajst-28818	280	26	by	by	ADP
ajst-28818	280	27	transverse	transverse	ADJ
ajst-28818	280	28	displacement	displacement	NOUN
ajst-28818	280	29	should	should	AUX
ajst-28818	280	30	not	not	PART
ajst-28818	280	31	be	be	AUX
ajst-28818	280	32	ignored	ignore	VERB
ajst-28818	280	33	,	,	PUNCT
ajst-28818	280	34	therefore	therefore	ADV
ajst-28818	280	35	,	,	PUNCT
ajst-28818	280	36	it	it	PRON
ajst-28818	280	37	needs	need	VERB
ajst-28818	280	38	a	a	DET
ajst-28818	280	39	two	two	NUM
ajst-28818	280	40	-	-	PUNCT
ajst-28818	280	41	way	way	NOUN
ajst-28818	280	42	coupled	couple	VERB
ajst-28818	280	43	vibration	vibration	NOUN
ajst-28818	280	44	analysis	analysis	NOUN
ajst-28818	280	45	.	.	PUNCT
ajst-28818	281	1	in	in	ADP
ajst-28818	281	2	this	this	DET
ajst-28818	281	3	paper	paper	NOUN
ajst-28818	281	4	,	,	PUNCT
ajst-28818	281	5	a	a	DET
ajst-28818	281	6	two	two	NUM
ajst-28818	281	7	-	-	PUNCT
ajst-28818	281	8	way	way	NOUN
ajst-28818	281	9	coupling	coupling	NOUN
ajst-28818	281	10	scheme	scheme	NOUN
ajst-28818	281	11	is	be	AUX
ajst-28818	281	12	used	use	VERB
ajst-28818	281	13	to	to	PART
ajst-28818	281	14	solve	solve	VERB
ajst-28818	281	15	the	the	DET
ajst-28818	281	16	equations	equation	NOUN
ajst-28818	281	17	(	(	PUNCT
ajst-28818	281	18	22	22	NUM
ajst-28818	281	19	)	)	PUNCT
ajst-28818	281	20	,	,	PUNCT
ajst-28818	281	21	and	and	CCONJ
ajst-28818	281	22	the	the	DET
ajst-28818	281	23	two	two	NUM
ajst-28818	281	24	one	one	NUM
ajst-28818	281	25	-	-	PUNCT
ajst-28818	281	26	way	way	NOUN
ajst-28818	281	27	coupling	coupling	NOUN
ajst-28818	281	28	systems	system	NOUN
ajst-28818	281	29	are	be	AUX
ajst-28818	281	30	solved	solve	VERB
ajst-28818	281	31	the	the	DET
ajst-28818	281	32	independently	independently	ADV
ajst-28818	281	33	and	and	CCONJ
ajst-28818	281	34	in	in	ADP
ajst-28818	281	35	turn	turn	NOUN
ajst-28818	281	36	to	to	PART
ajst-28818	281	37	achieve	achieve	VERB
ajst-28818	281	38	the	the	DET
ajst-28818	281	39	purpose	purpose	NOUN
ajst-28818	281	40	of	of	ADP
ajst-28818	281	41	two	two	NUM
ajst-28818	281	42	-	-	PUNCT
ajst-28818	281	43	way	way	NOUN
ajst-28818	281	44	coupling	couple	VERB
ajst-28818	281	45	vibration	vibration	NOUN
ajst-28818	281	46	analysis	analysis	NOUN
ajst-28818	281	47	.	.	PUNCT
ajst-28818	282	1	the	the	DET
ajst-28818	282	2	solution	solution	NOUN
ajst-28818	282	3	idea	idea	NOUN
ajst-28818	282	4	is	be	AUX
ajst-28818	282	5	given	give	VERB
ajst-28818	282	6	as	as	SCONJ
ajst-28818	282	7	follows	follow	VERB
ajst-28818	282	8	:	:	PUNCT
ajst-28818	282	9	ⅰ	ⅰ	NUM
ajst-28818	282	10	:	:	PUNCT
ajst-28818	282	11	substituting	substitute	VERB
ajst-28818	282	12	the	the	DET
ajst-28818	282	13	displacement	displacement	ADJ
ajst-28818	282	14			NOUN
ajst-28818	282	15	1it	1it	NOUN
ajst-28818	282	16	d	d	NOUN
ajst-28818	282	17	at	at	ADP
ajst-28818	282	18	the	the	DET
ajst-28818	282	19	previous	previous	ADJ
ajst-28818	282	20	time	time	NOUN
ajst-28818	282	21	into	into	ADP
ajst-28818	282	22	the	the	DET
ajst-28818	282	23	unidirectional	unidirectional	ADJ
ajst-28818	282	24	coupling	coupling	NOUN
ajst-28818	282	25	matrices	matrix	NOUN
ajst-28818	282	26	1k	1k	NUM
ajst-28818	282	27	,	,	PUNCT
ajst-28818	282	28	1c	1c	NUM
ajst-28818	282	29	,	,	PUNCT
ajst-28818	282	30	2k	2k	NOUN
ajst-28818	282	31	and	and	CCONJ
ajst-28818	282	32	2c	2c	NUM
ajst-28818	282	33	at	at	ADP
ajst-28818	282	34	the	the	DET
ajst-28818	282	35	current	current	ADJ
ajst-28818	282	36	time	time	NOUN
ajst-28818	282	37	.	.	PUNCT
ajst-28818	283	1	ⅱ	ⅱ	PROPN
ajst-28818	283	2	:	:	PUNCT
ajst-28818	283	3	calculating	calculate	VERB
ajst-28818	283	4	the	the	DET
ajst-28818	283	5	displacement	displacement	ADJ
ajst-28818	283	6	field	field	NOUN
ajst-28818	283	7	at	at	ADP
ajst-28818	283	8	the	the	DET
ajst-28818	283	9	current	current	ADJ
ajst-28818	283	10	time	time	NOUN
ajst-28818	283	11	1	1	NUM
ajst-28818	283	12	(	(	PUNCT
ajst-28818	283	13	)	)	PUNCT
ajst-28818	283	14	itd	itd	ADJ
ajst-28818	283	15	,	,	PUNCT
ajst-28818	283	16	1	1	NUM
ajst-28818	283	17	(	(	PUNCT
ajst-28818	283	18	)	)	PUNCT
ajst-28818	283	19	itd	itd	PROPN
ajst-28818	283	20	,	,	PUNCT
ajst-28818	283	21	1	1	NUM
ajst-28818	283	22	(	(	PUNCT
ajst-28818	283	23	)	)	PUNCT
ajst-28818	283	24	it	it	PRON
ajst-28818	283	25	d	d	NOUN
ajst-28818	283	26	,	,	PUNCT
ajst-28818	283	27	2	2	NUM
ajst-28818	283	28	(	(	PUNCT
ajst-28818	283	29	)	)	PUNCT
ajst-28818	283	30	itd	itd	ADJ
ajst-28818	283	31	,	,	PUNCT
ajst-28818	283	32	2	2	NUM
ajst-28818	283	33	(	(	PUNCT
ajst-28818	283	34	)	)	PUNCT
ajst-28818	283	35	itd	itd	PROPN
ajst-28818	283	36	and	and	CCONJ
ajst-28818	283	37	2	2	NUM
ajst-28818	283	38	(	(	PUNCT
ajst-28818	283	39	)	)	PUNCT
ajst-28818	283	40	it	it	PRON
ajst-28818	283	41	d	d	NOUN
ajst-28818	283	42	.	.	PUNCT
ajst-28818	284	1	ⅲ	ⅲ	NOUN
ajst-28818	284	2	:	:	PUNCT
ajst-28818	284	3	the	the	DET
ajst-28818	284	4	coupled	couple	VERB
ajst-28818	284	5	vibration	vibration	NOUN
ajst-28818	284	6	displacement	displacement	NOUN
ajst-28818	284	7	(	(	PUNCT
ajst-28818	284	8	)	)	PUNCT
ajst-28818	284	9	itd	itd	NOUN
ajst-28818	284	10	,	,	PUNCT
ajst-28818	284	11	(	(	PUNCT
ajst-28818	284	12	)	)	PUNCT
ajst-28818	284	13	itd	itd	PROPN
ajst-28818	284	14	,	,	PUNCT
ajst-28818	284	15	(	(	PUNCT
ajst-28818	284	16	)	)	PUNCT
ajst-28818	284	17	it	it	PRON
ajst-28818	284	18	d	d	PROPN
ajst-28818	284	19	of	of	ADP
ajst-28818	284	20	the	the	DET
ajst-28818	284	21	system	system	NOUN
ajst-28818	284	22	at	at	ADP
ajst-28818	284	23	the	the	DET
ajst-28818	284	24	current	current	ADJ
ajst-28818	284	25	time	time	NOUN
ajst-28818	284	26	is	be	AUX
ajst-28818	284	27	obtained	obtain	VERB
ajst-28818	284	28	from	from	ADP
ajst-28818	284	29	the	the	DET
ajst-28818	284	30	lateral	lateral	ADJ
ajst-28818	284	31	and	and	CCONJ
ajst-28818	284	32	torsional	torsional	ADJ
ajst-28818	284	33	displacement	displacement	NOUN
ajst-28818	284	34	of	of	ADP
ajst-28818	284	35	1	1	NUM
ajst-28818	284	36	(	(	PUNCT
ajst-28818	284	37	)	)	PUNCT
ajst-28818	284	38	itd	itd	ADJ
ajst-28818	284	39	,	,	PUNCT
ajst-28818	284	40	1	1	NUM
ajst-28818	284	41	(	(	PUNCT
ajst-28818	284	42	)	)	PUNCT
ajst-28818	284	43	itd	itd	PROPN
ajst-28818	284	44	,	,	PUNCT
ajst-28818	284	45	1	1	NUM
ajst-28818	284	46	(	(	PUNCT
ajst-28818	284	47	)	)	PUNCT
ajst-28818	284	48	it	it	PRON
ajst-28818	284	49	d	d	PROPN
ajst-28818	284	50	and	and	CCONJ
ajst-28818	284	51	the	the	DET
ajst-28818	284	52	axial	axial	ADJ
ajst-28818	284	53	displacement	displacement	NOUN
ajst-28818	284	54	of	of	ADP
ajst-28818	284	55	2	2	NUM
ajst-28818	284	56	(	(	PUNCT
ajst-28818	284	57	)	)	PUNCT
ajst-28818	284	58	itd	itd	ADJ
ajst-28818	284	59	,	,	PUNCT
ajst-28818	284	60	2	2	NUM
ajst-28818	284	61	(	(	PUNCT
ajst-28818	284	62	)	)	PUNCT
ajst-28818	284	63	itd	itd	PROPN
ajst-28818	284	64	,	,	PUNCT
ajst-28818	284	65	2	2	NUM
ajst-28818	284	66	(	(	PUNCT
ajst-28818	284	67	)	)	PUNCT
ajst-28818	284	68	it	it	PRON
ajst-28818	284	69	d	d	NOUN
ajst-28818	284	70	.	.	PUNCT
ajst-28818	285	1	2.6	2.6	NUM
ajst-28818	285	2	.	.	PUNCT
ajst-28818	286	1	boundary	boundary	ADJ
ajst-28818	286	2	condition	condition	NOUN
ajst-28818	286	3	(	(	PUNCT
ajst-28818	286	4	1	1	X
ajst-28818	286	5	)	)	PUNCT
ajst-28818	286	6	upper	upper	ADJ
ajst-28818	286	7	end	end	NOUN
ajst-28818	286	8	of	of	ADP
ajst-28818	286	9	drill	drill	NOUN
ajst-28818	286	10	-	-	PUNCT
ajst-28818	286	11	string	string	NOUN
ajst-28818	286	12	the	the	DET
ajst-28818	286	13	upper	upper	ADJ
ajst-28818	286	14	end	end	NOUN
ajst-28818	286	15	of	of	ADP
ajst-28818	286	16	the	the	DET
ajst-28818	286	17	riserless	riserless	NOUN
ajst-28818	286	18	drill0string	drill0stre	VERB
ajst-28818	286	19	is	be	AUX
ajst-28818	286	20	connected	connect	VERB
ajst-28818	286	21	to	to	ADP
ajst-28818	286	22	the	the	DET
ajst-28818	286	23	drill	drill	NOUN
ajst-28818	286	24	platform	platform	NOUN
ajst-28818	286	25	by	by	ADP
ajst-28818	286	26	a	a	DET
ajst-28818	286	27	heave	heave	NOUN
ajst-28818	286	28	compensator	compensator	NOUN
ajst-28818	286	29	,	,	PUNCT
ajst-28818	286	30	and	and	CCONJ
ajst-28818	286	31	moves	move	VERB
ajst-28818	286	32	horizontally	horizontally	ADV
ajst-28818	286	33	with	with	ADP
ajst-28818	286	34	the	the	DET
ajst-28818	286	35	latter	latter	ADJ
ajst-28818	286	36	.	.	PUNCT
ajst-28818	287	1	therefore	therefore	ADV
ajst-28818	287	2	,	,	PUNCT
ajst-28818	287	3	the	the	DET
ajst-28818	287	4	corresponding	corresponding	ADJ
ajst-28818	287	5	boundary	boundary	ADJ
ajst-28818	287	6	conditions	condition	NOUN
ajst-28818	287	7	can	can	AUX
ajst-28818	287	8	be	be	AUX
ajst-28818	287	9	described	describe	VERB
ajst-28818	287	10	as	as	ADP
ajst-28818	287	11	:	:	PUNCT
ajst-28818	287	12	(	(	PUNCT
ajst-28818	287	13	0	0	NUM
ajst-28818	287	14	,	,	PUNCT
ajst-28818	287	15	)	)	PUNCT
ajst-28818	287	16	,	,	PUNCT
ajst-28818	287	17	(	(	PUNCT
ajst-28818	287	18	0	0	NUM
ajst-28818	287	19	,	,	PUNCT
ajst-28818	287	20	)	)	PUNCT
ajst-28818	287	21	(	(	PUNCT
ajst-28818	287	22	0	0	NUM
ajst-28818	287	23	,	,	PUNCT
ajst-28818	287	24	)	)	PUNCT
ajst-28818	287	25	cos	cos	PROPN
ajst-28818	287	26	(	(	PUNCT
ajst-28818	287	27	)	)	PUNCT
ajst-28818	287	28	,	,	PUNCT
ajst-28818	287	29	(	(	PUNCT
ajst-28818	287	30	0	0	NUM
ajst-28818	287	31	,	,	PUNCT
ajst-28818	287	32	)	)	PUNCT
ajst-28818	287	33	0	0	PUNCT
ajst-28818	288	1	(	(	PUNCT
ajst-28818	288	2	0	0	NUM
ajst-28818	288	3	,	,	PUNCT
ajst-28818	288	4	)	)	PUNCT
ajst-28818	288	5	sin	sin	NOUN
ajst-28818	288	6	(	(	PUNCT
ajst-28818	288	7	)	)	PUNCT
ajst-28818	288	8	,	,	PUNCT
ajst-28818	288	9	(	(	PUNCT
ajst-28818	288	10	0	0	NUM
ajst-28818	288	11	,	,	PUNCT
ajst-28818	288	12	)	)	PUNCT
ajst-28818	288	13	0	0	PUNCT
ajst-28818	289	1	z	z	NOUN
ajst-28818	290	1	tf	tf	INTJ
ajst-28818	290	2	t	t	PROPN
ajst-28818	290	3	f	f	PROPN
ajst-28818	290	4	t	t	PROPN
ajst-28818	290	5	u	u	NOUN
ajst-28818	290	6	t	t	PROPN
ajst-28818	290	7	s	s	X
ajst-28818	290	8	u	u	NOUN
ajst-28818	290	9	t	t	PROPN
ajst-28818	290	10	v	v	NOUN
ajst-28818	290	11	t	t	PROPN
ajst-28818	290	12	s	s	NOUN
ajst-28818	290	13	v	v	ADP
ajst-28818	290	14	t	t	NOUN
ajst-28818	290	15			NOUN
ajst-28818	290	16			X
ajst-28818	290	17			SYM
ajst-28818	290	18			ADP
ajst-28818	291	1			PROPN
ajst-28818	291	2			PROPN
ajst-28818	291	3			PROPN
ajst-28818	291	4			PROPN
ajst-28818	291	5			NUM
ajst-28818	291	6			PROPN
ajst-28818	291	7			PROPN
ajst-28818	291	8			NUM
ajst-28818	291	9			PROPN
ajst-28818	291	10			NOUN
ajst-28818	291	11			NOUN
ajst-28818	291	12	(	(	PUNCT
ajst-28818	291	13	39	39	NUM
ajst-28818	291	14	)	)	PUNCT
ajst-28818	291	15	where	where	SCONJ
ajst-28818	291	16	tf	tf	PROPN
ajst-28818	291	17	is	be	AUX
ajst-28818	291	18	the	the	DET
ajst-28818	291	19	top	top	ADJ
ajst-28818	291	20	tension	tension	NOUN
ajst-28818	291	21	from	from	ADP
ajst-28818	291	22	the	the	DET
ajst-28818	291	23	heave	heave	NOUN
ajst-28818	291	24	compensator	compensator	NOUN
ajst-28818	291	25	and	and	CCONJ
ajst-28818	291	26	its	its	PRON
ajst-28818	291	27	detailed	detailed	ADJ
ajst-28818	291	28	description	description	NOUN
ajst-28818	291	29	is	be	AUX
ajst-28818	291	30	can	can	AUX
ajst-28818	291	31	be	be	AUX
ajst-28818	291	32	found	find	VERB
ajst-28818	291	33	in	in	ADP
ajst-28818	291	34	appendix	appendix	ADJ
ajst-28818	291	35	a1	a1	NOUN
ajst-28818	291	36	,	,	PUNCT
ajst-28818	291	37	is	be	AUX
ajst-28818	291	38	the	the	DET
ajst-28818	291	39	horizontal	horizontal	ADJ
ajst-28818	291	40	displacement	displacement	NOUN
ajst-28818	291	41	of	of	ADP
ajst-28818	291	42	the	the	DET
ajst-28818	291	43	drilling	drilling	NOUN
ajst-28818	291	44	platform	platform	NOUN
ajst-28818	291	45	,	,	PUNCT
ajst-28818	291	46	is	be	AUX
ajst-28818	291	47	the	the	DET
ajst-28818	291	48	angle	angle	NOUN
ajst-28818	291	49	between	between	ADP
ajst-28818	291	50	horizontal	horizontal	ADJ
ajst-28818	291	51	displacement	displacement	ADJ
ajst-28818	291	52	orientation	orientation	NOUN
ajst-28818	291	53	and	and	CCONJ
ajst-28818	291	54	the	the	DET
ajst-28818	291	55	xaxis	xaxis	NOUN
ajst-28818	291	56	,	,	PUNCT
ajst-28818	291	57	is	be	AUX
ajst-28818	291	58	the	the	DET
ajst-28818	291	59	rotation	rotation	NOUN
ajst-28818	291	60	speed	speed	NOUN
ajst-28818	291	61	of	of	ADP
ajst-28818	291	62	the	the	DET
ajst-28818	291	63	rotary	rotary	ADJ
ajst-28818	291	64	table	table	NOUN
ajst-28818	291	65	.	.	PUNCT
ajst-28818	292	1	considering	consider	VERB
ajst-28818	292	2	that	that	SCONJ
ajst-28818	292	3	the	the	DET
ajst-28818	292	4	slow	slow	ADJ
ajst-28818	292	5	drift	drift	NOUN
ajst-28818	292	6	motion	motion	NOUN
ajst-28818	292	7	of	of	ADP
ajst-28818	292	8	the	the	DET
ajst-28818	292	9	drilling	drilling	NOUN
ajst-28818	292	10	ship	ship	NOUN
ajst-28818	292	11	mainly	mainly	ADV
ajst-28818	292	12	consists	consist	VERB
ajst-28818	292	13	of	of	ADP
ajst-28818	292	14	two	two	NUM
ajst-28818	292	15	parts	part	NOUN
ajst-28818	292	16	:	:	PUNCT
ajst-28818	292	17	the	the	DET
ajst-28818	292	18	average	average	ADJ
ajst-28818	292	19	offset	offset	NOUN
ajst-28818	292	20	of	of	ADP
ajst-28818	292	21	the	the	DET
ajst-28818	292	22	drilling	drilling	NOUN
ajst-28818	292	23	platform	platform	NOUN
ajst-28818	292	24	and	and	CCONJ
ajst-28818	292	25	the	the	DET
ajst-28818	292	26	long	long	ADJ
ajst-28818	292	27	-	-	PUNCT
ajst-28818	292	28	term	term	NOUN
ajst-28818	292	29	slow	slow	ADJ
ajst-28818	292	30	drift	drift	NOUN
ajst-28818	292	31	motion	motion	NOUN
ajst-28818	292	32	simulating	simulate	VERB
ajst-28818	292	33	the	the	DET
ajst-28818	292	34	response	response	NOUN
ajst-28818	292	35	of	of	ADP
ajst-28818	292	36	the	the	DET
ajst-28818	292	37	positioning	positioning	NOUN
ajst-28818	292	38	system	system	NOUN
ajst-28818	292	39	of	of	ADP
ajst-28818	292	40	the	the	DET
ajst-28818	292	41	drilling	drilling	NOUN
ajst-28818	292	42	ship	ship	NOUN
ajst-28818	292	43	,	,	PUNCT
ajst-28818	292	44	the	the	DET
ajst-28818	292	45	following	follow	VERB
ajst-28818	292	46	formula	formula	NOUN
ajst-28818	292	47	is	be	AUX
ajst-28818	292	48	used	use	VERB
ajst-28818	292	49	to	to	PART
ajst-28818	292	50	describe	describe	VERB
ajst-28818	292	51	the	the	DET
ajst-28818	292	52	horizontal	horizontal	ADJ
ajst-28818	292	53	displacement	displacement	NOUN
ajst-28818	292	54	of	of	ADP
ajst-28818	292	55	the	the	DET
ajst-28818	292	56	drilling	drilling	NOUN
ajst-28818	292	57	platform	platform	NOUN
ajst-28818	292	58	(	(	PUNCT
ajst-28818	292	59	wang	wang	PROPN
ajst-28818	292	60	et	et	PROPN
ajst-28818	292	61	al	al	PROPN
ajst-28818	292	62	.	.	PROPN
ajst-28818	292	63	,	,	PUNCT
ajst-28818	292	64	2015	2015	NUM
ajst-28818	292	65	)	)	PUNCT
ajst-28818	292	66	.	.	PUNCT
ajst-28818	293	1	0	0	NUM
ajst-28818	293	2	2	2	NUM
ajst-28818	293	3	(	(	PUNCT
ajst-28818	293	4	)	)	PUNCT
ajst-28818	293	5	sinl	sinl	NOUN
ajst-28818	293	6	l	l	PROPN
ajst-28818	293	7	l	l	PROPN
ajst-28818	293	8	s	s	ADP
ajst-28818	293	9	t	t	NOUN
ajst-28818	293	10	s	s	X
ajst-28818	293	11	s	s	PROPN
ajst-28818	293	12	t	t	PROPN
ajst-28818	293	13	t	t	X
ajst-28818	293	14			PROPN
ajst-28818	293	15			X
ajst-28818	293	16			NOUN
ajst-28818	293	17			NOUN
ajst-28818	293	18			PROPN
ajst-28818	293	19			ADV
ajst-28818	293	20			X
ajst-28818	293	21			PROPN
ajst-28818	294	1			PROPN
ajst-28818	294	2			NOUN
ajst-28818	294	3	(	(	PUNCT
ajst-28818	294	4	40	40	NUM
ajst-28818	294	5	)	)	PUNCT
ajst-28818	294	6	where	where	SCONJ
ajst-28818	294	7	0s	0s	NOUN
ajst-28818	294	8	is	be	AUX
ajst-28818	294	9	the	the	DET
ajst-28818	294	10	average	average	ADJ
ajst-28818	294	11	offset	offset	NOUN
ajst-28818	294	12	of	of	ADP
ajst-28818	294	13	the	the	DET
ajst-28818	294	14	drilling	drilling	NOUN
ajst-28818	294	15	ship	ship	NOUN
ajst-28818	294	16	,	,	PUNCT
ajst-28818	294	17	ls	ls	PROPN
ajst-28818	294	18	is	be	AUX
ajst-28818	294	19	the	the	DET
ajst-28818	294	20	amplitude	amplitude	NOUN
ajst-28818	294	21	of	of	ADP
ajst-28818	294	22	slow	slow	ADJ
ajst-28818	294	23	drift	drift	NOUN
ajst-28818	294	24	motion	motion	NOUN
ajst-28818	294	25	,	,	PUNCT
ajst-28818	294	26	lt	lt	PROPN
ajst-28818	294	27	is	be	AUX
ajst-28818	294	28	the	the	DET
ajst-28818	294	29	period	period	NOUN
ajst-28818	294	30	of	of	ADP
ajst-28818	294	31	slow	slow	ADJ
ajst-28818	294	32	drift	drift	NOUN
ajst-28818	294	33	motion	motion	NOUN
ajst-28818	294	34	,	,	PUNCT
ajst-28818	294	35	and	and	CCONJ
ajst-28818	294	36	l	l	NOUN
ajst-28818	294	37	is	be	AUX
ajst-28818	294	38	the	the	DET
ajst-28818	294	39	phase	phase	NOUN
ajst-28818	294	40	difference	difference	NOUN
ajst-28818	294	41	.	.	PUNCT
ajst-28818	295	1	the	the	DET
ajst-28818	295	2	heaving	heaving	NOUN
ajst-28818	295	3	motion	motion	NOUN
ajst-28818	295	4	of	of	ADP
ajst-28818	295	5	a	a	DET
ajst-28818	295	6	drilling	drilling	NOUN
ajst-28818	295	7	platform	platform	NOUN
ajst-28818	295	8	is	be	AUX
ajst-28818	295	9	formed	form	VERB
ajst-28818	295	10	by	by	ADP
ajst-28818	295	11	the	the	DET
ajst-28818	295	12	action	action	NOUN
ajst-28818	295	13	of	of	ADP
ajst-28818	295	14	ocean	ocean	NOUN
ajst-28818	295	15	waves	wave	NOUN
ajst-28818	295	16	and	and	CCONJ
ajst-28818	295	17	may	may	AUX
ajst-28818	295	18	be	be	AUX
ajst-28818	295	19	approximated	approximate	VERB
ajst-28818	295	20	by	by	ADP
ajst-28818	295	21	a	a	DET
ajst-28818	295	22	simple	simple	ADJ
ajst-28818	295	23	harmonic	harmonic	ADJ
ajst-28818	295	24	motion	motion	NOUN
ajst-28818	295	25	,	,	PUNCT
ajst-28818	295	26	whose	whose	DET
ajst-28818	295	27	amplitude	amplitude	NOUN
ajst-28818	295	28	is	be	AUX
ajst-28818	295	29	typically	typically	ADV
ajst-28818	295	30	considerably	considerably	ADV
ajst-28818	295	31	288	288	NUM
ajst-28818	295	32	smaller	small	ADJ
ajst-28818	295	33	than	than	ADP
ajst-28818	295	34	the	the	DET
ajst-28818	295	35	wave	wave	NOUN
ajst-28818	295	36	amplitude	amplitude	NOUN
ajst-28818	295	37	and	and	CCONJ
ajst-28818	295	38	depends	depend	VERB
ajst-28818	295	39	on	on	ADP
ajst-28818	295	40	the	the	DET
ajst-28818	295	41	wave	wave	NOUN
ajst-28818	295	42	height	height	NOUN
ajst-28818	295	43	and	and	CCONJ
ajst-28818	295	44	the	the	DET
ajst-28818	295	45	structure	structure	NOUN
ajst-28818	295	46	size	size	NOUN
ajst-28818	295	47	of	of	ADP
ajst-28818	295	48	the	the	DET
ajst-28818	295	49	platform	platform	NOUN
ajst-28818	295	50	,	,	PUNCT
ajst-28818	295	51	with	with	ADP
ajst-28818	295	52	a	a	DET
ajst-28818	295	53	period	period	NOUN
ajst-28818	295	54	comparable	comparable	ADJ
ajst-28818	295	55	to	to	ADP
ajst-28818	295	56	that	that	PRON
ajst-28818	295	57	of	of	ADP
ajst-28818	295	58	the	the	DET
ajst-28818	295	59	wave	wave	NOUN
ajst-28818	295	60	.	.	PUNCT
ajst-28818	296	1	here	here	ADV
ajst-28818	296	2	,	,	PUNCT
ajst-28818	296	3	it	it	PRON
ajst-28818	296	4	is	be	AUX
ajst-28818	296	5	assumed	assume	VERB
ajst-28818	296	6	that	that	SCONJ
ajst-28818	296	7	the	the	DET
ajst-28818	296	8	heaving	heaving	NOUN
ajst-28818	296	9	motion	motion	NOUN
ajst-28818	296	10	of	of	ADP
ajst-28818	296	11	the	the	DET
ajst-28818	296	12	drilling	drilling	NOUN
ajst-28818	296	13	platform	platform	NOUN
ajst-28818	296	14	is	be	AUX
ajst-28818	296	15	similar	similar	ADJ
ajst-28818	296	16	to	to	ADP
ajst-28818	296	17	the	the	DET
ajst-28818	296	18	simple	simple	ADJ
ajst-28818	296	19	harmonic	harmonic	ADJ
ajst-28818	296	20	motion	motion	NOUN
ajst-28818	296	21	.	.	PUNCT
ajst-28818	297	1	(	(	PUNCT
ajst-28818	297	2	)	)	PUNCT
ajst-28818	297	3	sin	sin	NOUN
ajst-28818	297	4	(	(	PUNCT
ajst-28818	297	5	)	)	PUNCT
ajst-28818	297	6	h	h	NOUN
ajst-28818	297	7	sw	sw	PROPN
ajst-28818	297	8	t	t	PROPN
ajst-28818	297	9	h	h	NOUN
ajst-28818	298	1	t	t	X
ajst-28818	298	2	(	(	PUNCT
ajst-28818	298	3	41	41	NUM
ajst-28818	298	4	)	)	PUNCT
ajst-28818	298	5	where	where	SCONJ
ajst-28818	298	6	sw	sw	PROPN
ajst-28818	298	7	is	be	AUX
ajst-28818	298	8	the	the	DET
ajst-28818	298	9	heave	heave	ADJ
ajst-28818	298	10	motion	motion	NOUN
ajst-28818	298	11	of	of	ADP
ajst-28818	298	12	the	the	DET
ajst-28818	298	13	drilling	drilling	NOUN
ajst-28818	298	14	platform	platform	NOUN
ajst-28818	298	15	,	,	PUNCT
ajst-28818	298	16	sh	sh	PROPN
ajst-28818	298	17	is	be	AUX
ajst-28818	298	18	the	the	DET
ajst-28818	298	19	amplitude	amplitude	NOUN
ajst-28818	298	20	,	,	PUNCT
ajst-28818	298	21			X
ajst-28818	298	22	is	be	AUX
ajst-28818	298	23	wave	wave	NOUN
ajst-28818	298	24	circular	circular	ADJ
ajst-28818	298	25	frequency	frequency	NOUN
ajst-28818	298	26	.	.	PUNCT
ajst-28818	299	1	(	(	PUNCT
ajst-28818	299	2	2	2	X
ajst-28818	299	3	)	)	PUNCT
ajst-28818	299	4	mudline	mudline	NOUN
ajst-28818	299	5	wellhead	wellhead	VERB
ajst-28818	299	6	the	the	DET
ajst-28818	299	7	lateral	lateral	ADJ
ajst-28818	299	8	displacement	displacement	NOUN
ajst-28818	299	9	of	of	ADP
ajst-28818	299	10	the	the	DET
ajst-28818	299	11	drill	drill	NOUN
ajst-28818	299	12	-	-	PUNCT
ajst-28818	299	13	string	string	NOUN
ajst-28818	299	14	at	at	SCONJ
ajst-28818	299	15	the	the	DET
ajst-28818	299	16	mudline	mudline	NOUN
ajst-28818	299	17	wellhead	wellhead	NOUN
ajst-28818	299	18	is	be	AUX
ajst-28818	299	19	constrained	constrain	VERB
ajst-28818	299	20	,	,	PUNCT
ajst-28818	299	21	so	so	CCONJ
ajst-28818	299	22	the	the	DET
ajst-28818	299	23	boundary	boundary	ADJ
ajst-28818	299	24	conditions	condition	NOUN
ajst-28818	299	25	here	here	ADV
ajst-28818	299	26	can	can	AUX
ajst-28818	299	27	be	be	AUX
ajst-28818	299	28	written	write	VERB
ajst-28818	299	29	as	as	ADP
ajst-28818	299	30	:	:	PUNCT
ajst-28818	299	31	(	(	PUNCT
ajst-28818	299	32	,	,	PUNCT
ajst-28818	299	33	)	)	PUNCT
ajst-28818	299	34	0	0	NUM
ajst-28818	299	35	,	,	PUNCT
ajst-28818	299	36	(	(	PUNCT
ajst-28818	299	37	,	,	PUNCT
ajst-28818	299	38	)	)	PUNCT
ajst-28818	299	39	0	0	NUM
ajst-28818	300	1	(	(	PUNCT
ajst-28818	300	2	,	,	PUNCT
ajst-28818	300	3	)	)	PUNCT
ajst-28818	300	4	0	0	NUM
ajst-28818	300	5	,	,	PUNCT
ajst-28818	300	6	(	(	PUNCT
ajst-28818	300	7	,	,	PUNCT
ajst-28818	300	8	)	)	PUNCT
ajst-28818	300	9	0	0	PUNCT
ajst-28818	301	1	u	u	NOUN
ajst-28818	301	2	h	h	NOUN
ajst-28818	301	3	t	t	NOUN
ajst-28818	301	4	v	v	NUM
ajst-28818	301	5	h	h	NOUN
ajst-28818	301	6	t	t	NOUN
ajst-28818	301	7	u	u	NOUN
ajst-28818	301	8	h	h	NOUN
ajst-28818	301	9	t	t	NOUN
ajst-28818	301	10	v	v	NUM
ajst-28818	301	11	h	h	NOUN
ajst-28818	301	12	t	t	PROPN
ajst-28818	301	13			PROPN
ajst-28818	301	14			NOUN
ajst-28818	301	15			NUM
ajst-28818	301	16			CCONJ
ajst-28818	301	17			PROPN
ajst-28818	301	18			NOUN
ajst-28818	301	19	(	(	PUNCT
ajst-28818	301	20	42	42	NUM
ajst-28818	301	21	)	)	PUNCT
ajst-28818	301	22	where	where	SCONJ
ajst-28818	301	23	h	h	NOUN
ajst-28818	301	24	is	be	AUX
ajst-28818	301	25	the	the	DET
ajst-28818	301	26	water	water	NOUN
ajst-28818	301	27	depth	depth	NOUN
ajst-28818	301	28	at	at	ADP
ajst-28818	301	29	mudline	mudline	NOUN
ajst-28818	301	30	wellhead	wellhead	NOUN
ajst-28818	301	31	.	.	PUNCT
ajst-28818	302	1	(	(	PUNCT
ajst-28818	302	2	3	3	X
ajst-28818	302	3	)	)	PUNCT
ajst-28818	302	4	ocean	ocean	NOUN
ajst-28818	302	5	loads	load	VERB
ajst-28818	302	6	the	the	DET
ajst-28818	302	7	ocean	ocean	NOUN
ajst-28818	302	8	load	load	NOUN
ajst-28818	302	9	on	on	ADP
ajst-28818	302	10	the	the	DET
ajst-28818	302	11	drill	drill	NOUN
ajst-28818	302	12	-	-	PUNCT
ajst-28818	302	13	string	string	NOUN
ajst-28818	302	14	is	be	AUX
ajst-28818	302	15	described	describe	VERB
ajst-28818	302	16	by	by	ADP
ajst-28818	302	17	morison	morison	PROPN
ajst-28818	302	18	equation	equation	NOUN
ajst-28818	302	19	(	(	PUNCT
ajst-28818	302	20	morison	morison	PROPN
ajst-28818	302	21	et	et	PROPN
ajst-28818	302	22	al	al	PROPN
ajst-28818	302	23	.	.	PROPN
ajst-28818	302	24	,	,	PUNCT
ajst-28818	302	25	1950	1950	NUM
ajst-28818	302	26	):	):	PUNCT
ajst-28818	302	27			NOUN
ajst-28818	302	28	2	2	ADJ
ajst-28818	302	29	1	1	NUM
ajst-28818	302	30	(	(	PUNCT
ajst-28818	302	31	,	,	PUNCT
ajst-28818	302	32	)	)	PUNCT
ajst-28818	302	33	(	(	PUNCT
ajst-28818	302	34	)	)	PUNCT
ajst-28818	302	35	4	4	NUM
ajst-28818	302	36	2	2	NUM
ajst-28818	302	37	h	h	NOUN
ajst-28818	302	38	h	h	NOUN
ajst-28818	302	39	m	m	PROPN
ajst-28818	302	40	w	w	PROPN
ajst-28818	302	41	b	b	PROPN
ajst-28818	302	42	s	s	PROPN
ajst-28818	302	43	d	d	X
ajst-28818	302	44	w	w	PROPN
ajst-28818	302	45	h	h	PROPN
ajst-28818	302	46	h	h	NOUN
ajst-28818	303	1	b	b	PROPN
ajst-28818	303	2	s	s	PROPN
ajst-28818	303	3	h	h	PROPN
ajst-28818	303	4	b	b	PROPN
ajst-28818	303	5	s	s	ADP
ajst-28818	303	6	df	df	PROPN
ajst-28818	303	7	z	z	PROPN
ajst-28818	303	8	t	t	PROPN
ajst-28818	303	9	c	c	PROPN
ajst-28818	303	10	a	a	DET
ajst-28818	303	11	a	a	DET
ajst-28818	303	12	c	c	NOUN
ajst-28818	303	13	d	d	X
ajst-28818	303	14	v	v	PROPN
ajst-28818	303	15	v	v	NUM
ajst-28818	303	16	v	v	ADP
ajst-28818	303	17	v	v	NOUN
ajst-28818	303	18	v	v	NUM
ajst-28818	303	19	v	v	PROPN
ajst-28818	303	20			ADJ
ajst-28818	303	21			PROPN
ajst-28818	303	22			PUNCT
ajst-28818	303	23			CCONJ
ajst-28818	303	24			PROPN
ajst-28818	303	25			PUNCT
ajst-28818	303	26			X
ajst-28818	303	27	(	(	PUNCT
ajst-28818	303	28	43	43	NUM
ajst-28818	303	29	)	)	PUNCT
ajst-28818	303	30	where	where	SCONJ
ajst-28818	303	31	hv	hv	PROPN
ajst-28818	303	32	is	be	AUX
ajst-28818	303	33	the	the	DET
ajst-28818	303	34	horizontal	horizontal	ADJ
ajst-28818	303	35	velocity	velocity	NOUN
ajst-28818	303	36	of	of	ADP
ajst-28818	303	37	the	the	DET
ajst-28818	303	38	water	water	NOUN
ajst-28818	303	39	point	point	NOUN
ajst-28818	303	40	caused	cause	VERB
ajst-28818	303	41	by	by	ADP
ajst-28818	303	42	the	the	DET
ajst-28818	303	43	sea	sea	NOUN
ajst-28818	303	44	current	current	NOUN
ajst-28818	303	45	,	,	PUNCT
ajst-28818	303	46	bv	bv	PROPN
ajst-28818	303	47	is	be	AUX
ajst-28818	303	48	the	the	DET
ajst-28818	303	49	horizontal	horizontal	ADJ
ajst-28818	303	50	velocity	velocity	NOUN
ajst-28818	303	51	of	of	ADP
ajst-28818	303	52	the	the	DET
ajst-28818	303	53	water	water	NOUN
ajst-28818	303	54	point	point	NOUN
ajst-28818	303	55	caused	cause	VERB
ajst-28818	303	56	by	by	ADP
ajst-28818	303	57	the	the	DET
ajst-28818	303	58	wave	wave	NOUN
ajst-28818	303	59	,	,	PUNCT
ajst-28818	303	60	ba	ba	PROPN
ajst-28818	303	61	is	be	AUX
ajst-28818	303	62	the	the	DET
ajst-28818	303	63	horizontal	horizontal	ADJ
ajst-28818	303	64	acceleration	acceleration	NOUN
ajst-28818	303	65	of	of	ADP
ajst-28818	303	66	the	the	DET
ajst-28818	303	67	water	water	NOUN
ajst-28818	303	68	point	point	NOUN
ajst-28818	303	69	caused	cause	VERB
ajst-28818	303	70	by	by	ADP
ajst-28818	303	71	the	the	DET
ajst-28818	303	72	wave	wave	NOUN
ajst-28818	303	73	,	,	PUNCT
ajst-28818	303	74	sv	sv	PROPN
ajst-28818	303	75	is	be	AUX
ajst-28818	303	76	the	the	DET
ajst-28818	303	77	horizontal	horizontal	ADJ
ajst-28818	303	78	velocity	velocity	NOUN
ajst-28818	303	79	of	of	ADP
ajst-28818	303	80	the	the	DET
ajst-28818	303	81	drill	drill	NOUN
ajst-28818	303	82	-	-	PUNCT
ajst-28818	303	83	string	string	PROPN
ajst-28818	303	84	,	,	PUNCT
ajst-28818	303	85	sa	sa	PROPN
ajst-28818	303	86	is	be	AUX
ajst-28818	303	87	the	the	DET
ajst-28818	303	88	horizontal	horizontal	ADJ
ajst-28818	303	89	acceleration	acceleration	NOUN
ajst-28818	303	90	of	of	ADP
ajst-28818	303	91	the	the	DET
ajst-28818	303	92	drill	drill	NOUN
ajst-28818	303	93	-	-	PUNCT
ajst-28818	303	94	string	string	NOUN
ajst-28818	303	95	.	.	PUNCT
ajst-28818	304	1	hv	hv	PROPN
ajst-28818	304	2	,	,	PUNCT
ajst-28818	304	3	bv	bv	PROPN
ajst-28818	304	4	and	and	CCONJ
ajst-28818	304	5	ba	ba	PROPN
ajst-28818	304	6	are	be	AUX
ajst-28818	304	7	determined	determine	VERB
ajst-28818	304	8	in	in	ADP
ajst-28818	304	9	appendix	appendix	ADJ
ajst-28818	304	10	a2	a2	NOUN
ajst-28818	304	11	.	.	PUNCT
ajst-28818	305	1	(	(	PUNCT
ajst-28818	305	2	4	4	X
ajst-28818	305	3	)	)	PUNCT
ajst-28818	305	4	drill	drill	NOUN
ajst-28818	305	5	-	-	PUNCT
ajst-28818	305	6	string	string	NOUN
ajst-28818	305	7	wellbore	wellbore	NOUN
ajst-28818	305	8	contact	contact	NOUN
ajst-28818	305	9	in	in	ADP
ajst-28818	305	10	the	the	DET
ajst-28818	305	11	formation	formation	NOUN
ajst-28818	305	12	when	when	SCONJ
ajst-28818	305	13	the	the	DET
ajst-28818	305	14	radial	radial	ADJ
ajst-28818	305	15	displacement	displacement	NOUN
ajst-28818	305	16	of	of	ADP
ajst-28818	305	17	the	the	DET
ajst-28818	305	18	drill	drill	NOUN
ajst-28818	305	19	-	-	PUNCT
ajst-28818	305	20	string	string	NOUN
ajst-28818	305	21	reaches	reach	VERB
ajst-28818	305	22	the	the	DET
ajst-28818	305	23	annular	annular	ADJ
ajst-28818	305	24	space	space	NOUN
ajst-28818	305	25	between	between	ADP
ajst-28818	305	26	the	the	DET
ajst-28818	305	27	drill	drill	NOUN
ajst-28818	305	28	-	-	PUNCT
ajst-28818	305	29	string	string	NOUN
ajst-28818	305	30	and	and	CCONJ
ajst-28818	305	31	the	the	DET
ajst-28818	305	32	wellbore	wellbore	NOUN
ajst-28818	305	33	,	,	PUNCT
ajst-28818	305	34	the	the	DET
ajst-28818	305	35	drill	drill	NOUN
ajst-28818	305	36	-	-	PUNCT
ajst-28818	305	37	string	string	NOUN
ajst-28818	305	38	will	will	AUX
ajst-28818	305	39	be	be	AUX
ajst-28818	305	40	constrained	constrain	VERB
ajst-28818	305	41	by	by	ADP
ajst-28818	305	42	the	the	DET
ajst-28818	305	43	wellbore	wellbore	NOUN
ajst-28818	305	44	,	,	PUNCT
ajst-28818	305	45	and	and	CCONJ
ajst-28818	305	46	the	the	DET
ajst-28818	305	47	two	two	NUM
ajst-28818	305	48	will	will	AUX
ajst-28818	305	49	contact	contact	VERB
ajst-28818	305	50	each	each	DET
ajst-28818	305	51	other	other	ADJ
ajst-28818	305	52	.	.	PUNCT
ajst-28818	306	1	in	in	ADP
ajst-28818	306	2	this	this	DET
ajst-28818	306	3	paper	paper	NOUN
ajst-28818	306	4	,	,	PUNCT
ajst-28818	306	5	hertz	hertz	NOUN
ajst-28818	306	6	contact	contact	NOUN
ajst-28818	306	7	theory	theory	NOUN
ajst-28818	306	8	is	be	AUX
ajst-28818	306	9	used	use	VERB
ajst-28818	306	10	to	to	PART
ajst-28818	306	11	describe	describe	VERB
ajst-28818	306	12	this	this	DET
ajst-28818	306	13	boundary	boundary	ADJ
ajst-28818	306	14	problem	problem	NOUN
ajst-28818	306	15	(	(	PUNCT
ajst-28818	306	16	christoforou	christoforou	NOUN
ajst-28818	306	17	and	and	CCONJ
ajst-28818	306	18	yigit	yigit	PROPN
ajst-28818	306	19	,	,	PUNCT
ajst-28818	306	20	1997	1997	NUM
ajst-28818	306	21	;	;	PUNCT
ajst-28818	307	1	zhao	zhao	PROPN
ajst-28818	307	2	et	et	PROPN
ajst-28818	307	3	al	al	PROPN
ajst-28818	307	4	.	.	PROPN
ajst-28818	307	5	,	,	PUNCT
ajst-28818	307	6	2016	2016	NUM
ajst-28818	307	7	)	)	PUNCT
ajst-28818	307	8	.	.	PUNCT
ajst-28818	308	1	as	as	SCONJ
ajst-28818	308	2	shown	show	VERB
ajst-28818	308	3	in	in	ADP
ajst-28818	308	4	figure	figure	NOUN
ajst-28818	308	5	,	,	PUNCT
ajst-28818	308	6	the	the	DET
ajst-28818	308	7	radial	radial	ADJ
ajst-28818	308	8	contact	contact	NOUN
ajst-28818	308	9	force	force	NOUN
ajst-28818	308	10	rf	rf	NOUN
ajst-28818	308	11	,	,	PUNCT
ajst-28818	308	12	the	the	DET
ajst-28818	308	13	tangential	tangential	ADJ
ajst-28818	308	14	friction	friction	NOUN
ajst-28818	308	15	force	force	NOUN
ajst-28818	308	16	tf	tf	X
ajst-28818	308	17	and	and	CCONJ
ajst-28818	308	18	the	the	DET
ajst-28818	308	19	friction	friction	NOUN
ajst-28818	308	20	torque	torque	NOUN
ajst-28818	308	21	ct	ct	PROPN
ajst-28818	308	22	can	can	AUX
ajst-28818	308	23	be	be	AUX
ajst-28818	308	24	expressed	express	VERB
ajst-28818	308	25	as	as	ADP
ajst-28818	308	26	:	:	PUNCT
ajst-28818	309	1	y	y	PROPN
ajst-28818	309	2	r	r	NOUN
ajst-28818	309	3	ct	ct	INTJ
ajst-28818	309	4	tf	tf	INTJ
ajst-28818	309	5	rf	rf	PROPN
ajst-28818	309	6	x	x	ADJ
ajst-28818	309	7			PROPN
ajst-28818	309	8	figure	figure	NOUN
ajst-28818	309	9	5	5	NUM
ajst-28818	309	10	.	.	PUNCT
ajst-28818	309	11	drill	drill	NOUN
ajst-28818	309	12	-	-	PUNCT
ajst-28818	309	13	string	string	NOUN
ajst-28818	309	14	-	-	PUNCT
ajst-28818	309	15	wellbore	wellbore	NOUN
ajst-28818	309	16	contact	contact	NOUN
ajst-28818	309	17	diagram	diagram	NOUN
ajst-28818	309	18			NOUN
ajst-28818	309	19			PROPN
ajst-28818	309	20	3	3	NUM
ajst-28818	309	21	2	2	NUM
ajst-28818	309	22	2	2	NUM
ajst-28818	309	23	2	2	NUM
ajst-28818	309	24	0	0	NUM
ajst-28818	309	25	2	2	NUM
ajst-28818	309	26	sign	sign	NOUN
ajst-28818	309	27	2	2	NUM
ajst-28818	309	28	c	c	NOUN
ajst-28818	309	29	h	h	NOUN
ajst-28818	310	1	c	c	NOUN
ajst-28818	310	2	h	h	NOUN
ajst-28818	311	1	r	r	NOUN
ajst-28818	311	2	h	h	NOUN
ajst-28818	312	1	c	c	NOUN
ajst-28818	312	2	h	h	NOUN
ajst-28818	312	3	t	t	PROPN
ajst-28818	313	1	b	b	NOUN
ajst-28818	313	2	r	r	NOUN
ajst-28818	313	3	p	p	NOUN
ajst-28818	313	4	c	c	NOUN
ajst-28818	313	5	t	t	PROPN
ajst-28818	314	1	d	d	X
ajst-28818	314	2	d	d	PROPN
ajst-28818	314	3	d	d	PROPN
ajst-28818	314	4	d	d	X
ajst-28818	314	5	f	f	X
ajst-28818	315	1	k	k	NOUN
ajst-28818	315	2	r	r	NOUN
ajst-28818	315	3	r	r	NOUN
ajst-28818	315	4	d	d	NOUN
ajst-28818	315	5	d	d	NOUN
ajst-28818	315	6	r	r	NOUN
ajst-28818	315	7	f	f	NOUN
ajst-28818	315	8	f	f	PROPN
ajst-28818	315	9	d	d	X
ajst-28818	315	10	t	t	PROPN
ajst-28818	315	11	f	f	PROPN
ajst-28818	315	12			NOUN
ajst-28818	315	13			PRON
ajst-28818	315	14			ADV
ajst-28818	315	15			ADV
ajst-28818	315	16			VERB
ajst-28818	315	17			PROPN
ajst-28818	315	18			PROPN
ajst-28818	315	19			PROPN
ajst-28818	315	20			VERB
ajst-28818	315	21			PROPN
ajst-28818	315	22			PROPN
ajst-28818	315	23			PROPN
ajst-28818	315	24			PROPN
ajst-28818	315	25			PROPN
ajst-28818	315	26			NUM
ajst-28818	315	27			VERB
ajst-28818	315	28			NOUN
ajst-28818	315	29			PROPN
ajst-28818	315	30			NUM
ajst-28818	315	31			ADJ
ajst-28818	315	32			NOUN
ajst-28818	315	33			NUM
ajst-28818	315	34			NUM
ajst-28818	315	35			PROPN
ajst-28818	315	36			PROPN
ajst-28818	315	37	(	(	PUNCT
ajst-28818	315	38	44	44	NUM
ajst-28818	315	39	)	)	PUNCT
ajst-28818	315	40	where	where	SCONJ
ajst-28818	315	41	2	2	NUM
ajst-28818	315	42	(=	(=	NOUN
ajst-28818	315	43	1.9	1.9	NUM
ajst-28818	315	44	)	)	PUNCT
ajst-28818	315	45	h	h	NOUN
ajst-28818	316	1	p	p	NOUN
ajst-28818	316	2	p	p	PROPN
ajst-28818	316	3	eb	eb	PROPN
ajst-28818	316	4	b	b	PROPN
ajst-28818	316	5	k	k	PROPN
ajst-28818	316	6	d	d	PROPN
ajst-28818	316	7	d	d	PROPN
ajst-28818	316	8	is	be	AUX
ajst-28818	316	9	the	the	DET
ajst-28818	316	10	collision	collision	NOUN
ajst-28818	316	11	rigidity	rigidity	NOUN
ajst-28818	316	12	coefficient	coefficient	NOUN
ajst-28818	316	13	,	,	PUNCT
ajst-28818	316	14	r	r	NOUN
ajst-28818	316	15	is	be	AUX
ajst-28818	316	16	the	the	DET
ajst-28818	316	17	radial	radial	ADJ
ajst-28818	316	18	displacement	displacement	NOUN
ajst-28818	316	19	of	of	ADP
ajst-28818	316	20	the	the	DET
ajst-28818	316	21	drill	drill	NOUN
ajst-28818	316	22	-	-	PUNCT
ajst-28818	316	23	string	string	NOUN
ajst-28818	316	24	,	,	PUNCT
ajst-28818	316	25	=	=	SYM
ajst-28818	316	26	2	2	NUM
ajst-28818	316	27	p	p	NOUN
ajst-28818	316	28	pd	pd	PROPN
ajst-28818	316	29	d	d	PROPN
ajst-28818	316	30	b	b	PROPN
ajst-28818	316	31			NOUN
ajst-28818	316	32	is	be	AUX
ajst-28818	316	33	the	the	DET
ajst-28818	316	34	wall	wall	NOUN
ajst-28818	316	35	thickness	thickness	NOUN
ajst-28818	316	36	of	of	ADP
ajst-28818	316	37	the	the	DET
ajst-28818	316	38	drill	drill	NOUN
ajst-28818	316	39	-	-	PUNCT
ajst-28818	316	40	string	string	NOUN
ajst-28818	316	41	,	,	PUNCT
ajst-28818	316	42	cd	cd	PROPN
ajst-28818	316	43	is	be	AUX
ajst-28818	316	44	the	the	DET
ajst-28818	316	45	inner	inner	ADJ
ajst-28818	316	46	diameter	diameter	NOUN
ajst-28818	316	47	of	of	ADP
ajst-28818	316	48	the	the	DET
ajst-28818	316	49	borehole	borehole	NOUN
ajst-28818	316	50	wall	wall	NOUN
ajst-28818	316	51	and	and	CCONJ
ajst-28818	316	52			PROPN
ajst-28818	316	53	is	be	AUX
ajst-28818	316	54	the	the	DET
ajst-28818	316	55	relative	relative	ADJ
ajst-28818	316	56	rotation	rotation	NOUN
ajst-28818	316	57	speed	speed	NOUN
ajst-28818	316	58	of	of	ADP
ajst-28818	316	59	the	the	DET
ajst-28818	316	60	borehole	borehole	NOUN
ajst-28818	316	61	wall	wall	NOUN
ajst-28818	316	62	of	of	ADP
ajst-28818	316	63	the	the	DET
ajst-28818	316	64	drill	drill	NOUN
ajst-28818	316	65	-	-	PUNCT
ajst-28818	316	66	string	string	NOUN
ajst-28818	316	67	.	.	PUNCT
ajst-28818	317	1	(	(	PUNCT
ajst-28818	317	2	5	5	NUM
ajst-28818	317	3	)	)	PUNCT
ajst-28818	317	4	bit	bit	NOUN
ajst-28818	317	5	-	-	PUNCT
ajst-28818	317	6	rock	rock	NOUN
ajst-28818	317	7	interaction	interaction	NOUN
ajst-28818	317	8	at	at	ADP
ajst-28818	317	9	bottom	bottom	ADJ
ajst-28818	317	10	hole	hole	NOUN
ajst-28818	317	11	the	the	DET
ajst-28818	317	12	boundary	boundary	NOUN
ajst-28818	317	13	at	at	ADP
ajst-28818	317	14	the	the	DET
ajst-28818	317	15	lower	low	ADJ
ajst-28818	317	16	end	end	NOUN
ajst-28818	317	17	of	of	ADP
ajst-28818	317	18	the	the	DET
ajst-28818	317	19	drill	drill	NOUN
ajst-28818	317	20	-	-	PUNCT
ajst-28818	317	21	string	string	NOUN
ajst-28818	317	22	,	,	PUNCT
ajst-28818	317	23	i.e.	i.e.	X
ajst-28818	317	24	the	the	DET
ajst-28818	317	25	bit	bit	ADJ
ajst-28818	317	26	-	-	PUNCT
ajst-28818	317	27	rock	rock	NOUN
ajst-28818	317	28	interaction	interaction	NOUN
ajst-28818	317	29	,	,	PUNCT
ajst-28818	317	30	is	be	AUX
ajst-28818	317	31	described	describe	VERB
ajst-28818	317	32	by	by	ADP
ajst-28818	317	33	the	the	DET
ajst-28818	317	34	friction	friction	NOUN
ajst-28818	317	35	torque	torque	NOUN
ajst-28818	317	36	received	receive	VERB
ajst-28818	317	37	by	by	ADP
ajst-28818	317	38	the	the	DET
ajst-28818	317	39	drill	drill	NOUN
ajst-28818	317	40	bit	bit	NOUN
ajst-28818	317	41	(	(	PUNCT
ajst-28818	317	42	moharrami	moharrami	NOUN
ajst-28818	317	43	et	et	PROPN
ajst-28818	317	44	al	al	PROPN
ajst-28818	317	45	.	.	PROPN
ajst-28818	317	46	,	,	PUNCT
ajst-28818	317	47	2021	2021	NUM
ajst-28818	317	48	):	):	PUNCT
ajst-28818	317	49	0	0	NUM
ajst-28818	317	50	0	0	NUM
ajst-28818	317	51	0	0	NUM
ajst-28818	317	52	0	0	NUM
ajst-28818	317	53	,	,	PUNCT
ajst-28818	317	54	(	(	PUNCT
ajst-28818	317	55	stick	stick	NOUN
ajst-28818	317	56	mode	mode	PROPN
ajst-28818	317	57	)	)	PUNCT
ajst-28818	317	58	,	,	PUNCT
ajst-28818	317	59	sgn	sgn	NOUN
ajst-28818	317	60	(	(	PUNCT
ajst-28818	317	61	)	)	PUNCT
ajst-28818	317	62	,	,	PUNCT
ajst-28818	317	63	(	(	PUNCT
ajst-28818	317	64	transition	transition	NOUN
ajst-28818	317	65	from	from	ADP
ajst-28818	317	66	stick	stick	NOUN
ajst-28818	317	67	to	to	PART
ajst-28818	317	68	slip	slip	VERB
ajst-28818	317	69	)	)	PUNCT
ajst-28818	317	70	,	,	PUNCT
ajst-28818	317	71	t	t	PROPN
ajst-28818	317	72	sgn	sgn	NOUN
ajst-28818	317	73	(	(	PUNCT
ajst-28818	317	74	)	)	PUNCT
ajst-28818	317	75	,	,	PUNCT
ajst-28818	317	76	(	(	PUNCT
ajst-28818	317	77	slip	slip	NOUN
ajst-28818	317	78	mode	mode	NOUN
ajst-28818	317	79	)	)	PUNCT
ajst-28818	317	80	.	.	PUNCT
ajst-28818	318	1	(	(	PUNCT
ajst-28818	318	2	)	)	PUNCT
ajst-28818	318	3	st	st	PROPN
ajst-28818	318	4	b	b	PROPN
ajst-28818	318	5	d	d	PROPN
ajst-28818	318	6	st	st	PROPN
ajst-28818	318	7	st	st	PROPN
ajst-28818	318	8	b	b	PROPN
ajst-28818	318	9	d	d	PROPN
ajst-28818	318	10	st	st	PROPN
ajst-28818	318	11	b	b	PROPN
ajst-28818	318	12	sl	sl	PROPN
ajst-28818	318	13	b	b	PROPN
ajst-28818	318	14	b	b	PROPN
ajst-28818	318	15	d	d	PROPN
ajst-28818	318	16	s	s	PROPN
ajst-28818	318	17	b	b	PROPN
ajst-28818	318	18	b	b	PROPN
ajst-28818	318	19	sl	sl	PROPN
ajst-28818	318	20	b	b	PROPN
ajst-28818	318	21	b	b	PROPN
ajst-28818	318	22	b	b	PROPN
ajst-28818	318	23	t	t	PROPN
ajst-28818	318	24	if	if	SCONJ
ajst-28818	318	25	v	v	PROPN
ajst-28818	318	26	and	and	CCONJ
ajst-28818	318	27	t	t	PROPN
ajst-28818	318	28	t	t	PROPN
ajst-28818	318	29	t	t	PROPN
ajst-28818	318	30	t	t	PROPN
ajst-28818	318	31	if	if	SCONJ
ajst-28818	318	32	v	v	PROPN
ajst-28818	318	33	and	and	CCONJ
ajst-28818	318	34	t	t	PROPN
ajst-28818	318	35	t	t	PROPN
ajst-28818	318	36	t	t	PROPN
ajst-28818	319	1	if	if	SCONJ
ajst-28818	319	2	v	v	ADP
ajst-28818	319	3	t	t	NOUN
ajst-28818	319	4	r	r	NOUN
ajst-28818	319	5	w	w	PROPN
ajst-28818	319	6	t	t	PROPN
ajst-28818	319	7	r	r	NOUN
ajst-28818	319	8	w	w	NOUN
ajst-28818	319	9			NOUN
ajst-28818	319	10			NOUN
ajst-28818	319	11			NOUN
ajst-28818	319	12			NOUN
ajst-28818	319	13			NOUN
ajst-28818	319	14			NOUN
ajst-28818	319	15			NOUN
ajst-28818	319	16			ADP
ajst-28818	319	17			PROPN
ajst-28818	319	18			NOUN
ajst-28818	319	19			NUM
ajst-28818	319	20			NUM
ajst-28818	319	21			PROPN
ajst-28818	319	22			PROPN
ajst-28818	319	23			NUM
ajst-28818	319	24			PROPN
ajst-28818	319	25			NOUN
ajst-28818	319	26			NUM
ajst-28818	319	27			NOUN
ajst-28818	319	28			NUM
ajst-28818	319	29			NOUN
ajst-28818	319	30			NOUN
ajst-28818	319	31			NOUN
ajst-28818	319	32			NOUN
ajst-28818	319	33			NOUN
ajst-28818	319	34			NOUN
ajst-28818	319	35	(	(	PUNCT
ajst-28818	319	36	45	45	NUM
ajst-28818	319	37	)	)	PUNCT
ajst-28818	319	38	where	where	SCONJ
ajst-28818	319	39	dv	dv	PROPN
ajst-28818	319	40	is	be	AUX
ajst-28818	319	41	critical	critical	ADJ
ajst-28818	319	42	rotational	rotational	ADJ
ajst-28818	319	43	speed	speed	NOUN
ajst-28818	319	44	,	,	PUNCT
ajst-28818	319	45	bw	bw	PROPN
ajst-28818	319	46	is	be	AUX
ajst-28818	319	47	weight	weight	NOUN
ajst-28818	319	48	on	on	ADP
ajst-28818	319	49	the	the	DET
ajst-28818	319	50	drill	drill	NOUN
ajst-28818	319	51	bit	bit	NOUN
ajst-28818	319	52	,	,	PUNCT
ajst-28818	319	53	(	(	PUNCT
ajst-28818	319	54	)	)	PUNCT
ajst-28818	319	55	b	b	NUM
ajst-28818	319	56			NOUN
ajst-28818	319	57	is	be	AUX
ajst-28818	319	58	the	the	DET
ajst-28818	319	59	exponential	exponential	ADJ
ajst-28818	319	60	decay	decay	NOUN
ajst-28818	319	61	friction	friction	NOUN
ajst-28818	319	62	coefficient	coefficient	NOUN
ajst-28818	319	63	of	of	ADP
ajst-28818	319	64	the	the	DET
ajst-28818	319	65	drill	drill	NOUN
ajst-28818	319	66	.	.	PUNCT
ajst-28818	320	1	for	for	ADP
ajst-28818	320	2	the	the	DET
ajst-28818	320	3	determination	determination	NOUN
ajst-28818	320	4	of	of	ADP
ajst-28818	320	5	)	)	PUNCT
ajst-28818	320	6	b	b	NUM
ajst-28818	320	7			PROPN
ajst-28818	320	8	（	（	PUNCT
ajst-28818	320	9	and	and	CCONJ
ajst-28818	320	10	bw	bw	PROPN
ajst-28818	320	11	,	,	PUNCT
ajst-28818	320	12	refer	refer	VERB
ajst-28818	320	13	to	to	ADP
ajst-28818	320	14	appendix	appendix	ADJ
ajst-28818	320	15	a3	a3	NOUN
ajst-28818	320	16	.	.	PUNCT
ajst-28818	321	1	2.7	2.7	NUM
ajst-28818	321	2	.	.	PUNCT
ajst-28818	321	3	establishment	establishment	NOUN
ajst-28818	321	4	of	of	ADP
ajst-28818	321	5	initial	initial	ADJ
ajst-28818	321	6	working	working	NOUN
ajst-28818	321	7	conditions	condition	NOUN
ajst-28818	321	8	in	in	ADP
ajst-28818	321	9	actual	actual	ADJ
ajst-28818	321	10	drilling	drilling	NOUN
ajst-28818	321	11	work	work	NOUN
ajst-28818	321	12	,	,	PUNCT
ajst-28818	321	13	the	the	DET
ajst-28818	321	14	riserless	riserless	NOUN
ajst-28818	321	15	drill	drill	NOUN
ajst-28818	321	16	-	-	PUNCT
ajst-28818	321	17	string	string	NOUN
ajst-28818	321	18	is	be	AUX
ajst-28818	321	19	subjected	subject	VERB
ajst-28818	321	20	to	to	ADP
ajst-28818	321	21	the	the	DET
ajst-28818	321	22	tension	tension	NOUN
ajst-28818	321	23	of	of	ADP
ajst-28818	321	24	the	the	DET
ajst-28818	321	25	top	top	ADJ
ajst-28818	321	26	hook	hook	NOUN
ajst-28818	321	27	,	,	PUNCT
ajst-28818	321	28	the	the	DET
ajst-28818	321	29	pressure	pressure	NOUN
ajst-28818	321	30	of	of	ADP
ajst-28818	321	31	the	the	DET
ajst-28818	321	32	bottom	bottom	ADJ
ajst-28818	321	33	bit	bit	NOUN
ajst-28818	321	34	and	and	CCONJ
ajst-28818	321	35	the	the	DET
ajst-28818	321	36	gravity	gravity	NOUN
ajst-28818	321	37	in	in	ADP
ajst-28818	321	38	the	the	DET
ajst-28818	321	39	axial	axial	ADJ
ajst-28818	321	40	direction	direction	NOUN
ajst-28818	321	41	at	at	ADP
ajst-28818	321	42	the	the	DET
ajst-28818	321	43	same	same	ADJ
ajst-28818	321	44	time	time	NOUN
ajst-28818	321	45	before	before	SCONJ
ajst-28818	321	46	the	the	DET
ajst-28818	321	47	turntable	turntable	NOUN
ajst-28818	321	48	starts	start	VERB
ajst-28818	321	49	to	to	PART
ajst-28818	321	50	rotate	rotate	VERB
ajst-28818	321	51	,	,	PUNCT
ajst-28818	321	52	and	and	CCONJ
ajst-28818	321	53	the	the	DET
ajst-28818	321	54	seawater	seawater	NOUN
ajst-28818	321	55	section	section	NOUN
ajst-28818	321	56	is	be	AUX
ajst-28818	321	57	subjected	subject	VERB
ajst-28818	321	58	to	to	ADP
ajst-28818	321	59	the	the	DET
ajst-28818	321	60	transverse	transverse	ADJ
ajst-28818	321	61	current	current	ADJ
ajst-28818	321	62	load	load	NOUN
ajst-28818	321	63	,	,	PUNCT
ajst-28818	321	64	so	so	SCONJ
ajst-28818	321	65	there	there	PRON
ajst-28818	321	66	is	be	VERB
ajst-28818	321	67	a	a	DET
ajst-28818	321	68	certain	certain	ADJ
ajst-28818	321	69	initial	initial	ADJ
ajst-28818	321	70	displacement	displacement	NOUN
ajst-28818	321	71	in	in	ADP
ajst-28818	321	72	the	the	DET
ajst-28818	321	73	axial	axial	ADJ
ajst-28818	321	74	and	and	CCONJ
ajst-28818	321	75	transverse	transverse	NOUN
ajst-28818	321	76	direction	direction	NOUN
ajst-28818	321	77	.	.	PUNCT
ajst-28818	322	1	taking	take	VERB
ajst-28818	322	2	initial	initial	ADJ
ajst-28818	322	3	drillship	drillship	NOUN
ajst-28818	322	4	displacement	displacement	NOUN
ajst-28818	322	5	,	,	PUNCT
ajst-28818	322	6	top	top	ADJ
ajst-28818	322	7	tension	tension	NOUN
ajst-28818	322	8	,	,	PUNCT
ajst-28818	322	9	bit	bit	NOUN
ajst-28818	322	10	pressure	pressure	NOUN
ajst-28818	322	11	and	and	CCONJ
ajst-28818	322	12	current	current	ADJ
ajst-28818	322	13	load	load	NOUN
ajst-28818	322	14	and	and	CCONJ
ajst-28818	322	15	ignoring	ignore	VERB
ajst-28818	322	16	inertial	inertial	ADJ
ajst-28818	322	17	force	force	NOUN
ajst-28818	322	18	and	and	CCONJ
ajst-28818	322	19	damping	damp	VERB
ajst-28818	322	20	force	force	NOUN
ajst-28818	322	21	of	of	ADP
ajst-28818	322	22	equation	equation	NOUN
ajst-28818	322	23	(	(	PUNCT
ajst-28818	322	24	38	38	NUM
ajst-28818	322	25	)	)	PUNCT
ajst-28818	322	26	,	,	PUNCT
ajst-28818	322	27	the	the	DET
ajst-28818	322	28	balance	balance	NOUN
ajst-28818	322	29	equation	equation	NOUN
ajst-28818	322	30	of	of	ADP
ajst-28818	322	31	drill	drill	NOUN
ajst-28818	322	32	-	-	PUNCT
ajst-28818	322	33	string	string	NOUN
ajst-28818	322	34	under	under	ADP
ajst-28818	322	35	initial	initial	ADJ
ajst-28818	322	36	static	static	ADJ
ajst-28818	322	37	force	force	NOUN
ajst-28818	322	38	is	be	AUX
ajst-28818	322	39	obtained	obtain	VERB
ajst-28818	322	40	as	as	ADP
ajst-28818	322	41	follows	follow	VERB
ajst-28818	322	42	:	:	PUNCT
ajst-28818	322	43	0	0	NUM
ajst-28818	322	44	0i	0i	NOUN
ajst-28818	322	45	t	t	PROPN
ajst-28818	322	46	t	t	PROPN
ajst-28818	322	47	k	k	VERB
ajst-28818	322	48	d	d	X
ajst-28818	322	49	f	f	X
ajst-28818	322	50	(	(	PUNCT
ajst-28818	322	51	46	46	NUM
ajst-28818	322	52	)	)	PUNCT
ajst-28818	322	53	the	the	DET
ajst-28818	322	54	displacement	displacement	ADJ
ajst-28818	322	55	field	field	NOUN
ajst-28818	322	56	of	of	ADP
ajst-28818	322	57	the	the	DET
ajst-28818	322	58	drill	drill	NOUN
ajst-28818	322	59	-	-	PUNCT
ajst-28818	322	60	string	string	NOUN
ajst-28818	322	61	at	at	ADP
ajst-28818	322	62	the	the	DET
ajst-28818	322	63	initial	initial	ADJ
ajst-28818	322	64	time	time	NOUN
ajst-28818	322	65	can	can	AUX
ajst-28818	322	66	be	be	AUX
ajst-28818	322	67	obtained	obtain	VERB
ajst-28818	322	68	by	by	ADP
ajst-28818	322	69	solving	solve	VERB
ajst-28818	322	70	equation	equation	NOUN
ajst-28818	322	71	(	(	PUNCT
ajst-28818	322	72	46	46	NUM
ajst-28818	322	73	)	)	PUNCT
ajst-28818	322	74	.	.	PUNCT
ajst-28818	323	1	it	it	PRON
ajst-28818	323	2	is	be	AUX
ajst-28818	323	3	worth	worth	ADJ
ajst-28818	323	4	noting	note	VERB
ajst-28818	323	5	that	that	SCONJ
ajst-28818	323	6	from	from	ADP
ajst-28818	323	7	the	the	DET
ajst-28818	323	8	expression	expression	NOUN
ajst-28818	323	9	of	of	ADP
ajst-28818	323	10	equation	equation	NOUN
ajst-28818	323	11	(	(	PUNCT
ajst-28818	323	12	32b	32b	NOUN
ajst-28818	323	13	)	)	PUNCT
ajst-28818	323	14	,	,	PUNCT
ajst-28818	323	15	it	it	PRON
ajst-28818	323	16	can	can	AUX
ajst-28818	323	17	be	be	AUX
ajst-28818	323	18	seen	see	VERB
ajst-28818	323	19	that	that	SCONJ
ajst-28818	323	20	the	the	DET
ajst-28818	323	21	stiffness	stiffness	ADJ
ajst-28818	323	22	matrix	matrix	NOUN
ajst-28818	323	23	ik	ik	PROPN
ajst-28818	323	24	changes	change	NOUN
ajst-28818	323	25	with	with	ADP
ajst-28818	323	26	the	the	DET
ajst-28818	323	27	change	change	NOUN
ajst-28818	323	28	of	of	ADP
ajst-28818	323	29	the	the	DET
ajst-28818	323	30	numerical	numerical	ADJ
ajst-28818	323	31	results	result	NOUN
ajst-28818	323	32	of	of	ADP
ajst-28818	323	33	displacement	displacement	NOUN
ajst-28818	323	34	0td	0td	NOUN
ajst-28818	323	35	,	,	PUNCT
ajst-28818	323	36	and	and	CCONJ
ajst-28818	323	37	the	the	DET
ajst-28818	323	38	stiffness	stiffness	NOUN
ajst-28818	323	39	289	289	NUM
ajst-28818	323	40	matrix	matrix	NOUN
ajst-28818	323	41	is	be	AUX
ajst-28818	323	42	changed	change	VERB
ajst-28818	323	43	in	in	ADP
ajst-28818	323	44	each	each	DET
ajst-28818	323	45	solution	solution	NOUN
ajst-28818	323	46	result	result	VERB
ajst-28818	323	47	so	so	SCONJ
ajst-28818	323	48	that	that	SCONJ
ajst-28818	323	49	the	the	DET
ajst-28818	323	50	equation	equation	NOUN
ajst-28818	323	51	does	do	AUX
ajst-28818	323	52	not	not	PART
ajst-28818	323	53	hold	hold	VERB
ajst-28818	323	54	.	.	PUNCT
ajst-28818	324	1	in	in	ADP
ajst-28818	324	2	this	this	DET
ajst-28818	324	3	paper	paper	NOUN
ajst-28818	324	4	,	,	PUNCT
ajst-28818	324	5	equation	equation	NOUN
ajst-28818	324	6	(	(	PUNCT
ajst-28818	324	7	46	46	NUM
ajst-28818	324	8	)	)	PUNCT
ajst-28818	324	9	is	be	AUX
ajst-28818	324	10	solved	solve	VERB
ajst-28818	324	11	by	by	ADP
ajst-28818	324	12	several	several	ADJ
ajst-28818	324	13	iterations	iteration	NOUN
ajst-28818	324	14	,	,	PUNCT
ajst-28818	324	15	the	the	DET
ajst-28818	324	16	calculation	calculation	NOUN
ajst-28818	324	17	result	result	NOUN
ajst-28818	324	18	is	be	AUX
ajst-28818	324	19	brought	bring	VERB
ajst-28818	324	20	into	into	ADP
ajst-28818	324	21	the	the	DET
ajst-28818	324	22	update	update	NOUN
ajst-28818	324	23	system	system	NOUN
ajst-28818	324	24	stiffness	stiffness	NOUN
ajst-28818	324	25	matrix	matrix	NOUN
ajst-28818	324	26	ik	ik	PROPN
ajst-28818	324	27	,	,	PUNCT
ajst-28818	324	28	and	and	CCONJ
ajst-28818	324	29	the	the	DET
ajst-28818	324	30	displacement	displacement	NOUN
ajst-28818	324	31	0td	0td	NUM
ajst-28818	324	32	is	be	AUX
ajst-28818	324	33	obtained	obtain	VERB
ajst-28818	324	34	by	by	ADP
ajst-28818	324	35	solving	solve	VERB
ajst-28818	324	36	again	again	ADV
ajst-28818	324	37	.	.	PUNCT
ajst-28818	325	1	when	when	SCONJ
ajst-28818	325	2	the	the	DET
ajst-28818	325	3	maximum	maximum	ADJ
ajst-28818	325	4	error	error	NOUN
ajst-28818	325	5	of	of	ADP
ajst-28818	325	6	the	the	DET
ajst-28818	325	7	two	two	NUM
ajst-28818	325	8	displacement	displacement	ADJ
ajst-28818	325	9	values	value	NOUN
ajst-28818	325	10	is	be	AUX
ajst-28818	325	11	less	less	ADJ
ajst-28818	325	12	than	than	ADP
ajst-28818	325	13	the	the	DET
ajst-28818	325	14	set	set	NOUN
ajst-28818	325	15	error	error	NOUN
ajst-28818	325	16	precision	precision	NOUN
ajst-28818	325	17	,	,	PUNCT
ajst-28818	325	18	the	the	DET
ajst-28818	325	19	iteration	iteration	NOUN
ajst-28818	325	20	is	be	AUX
ajst-28818	325	21	stopped	stop	VERB
ajst-28818	325	22	to	to	PART
ajst-28818	325	23	obtain	obtain	VERB
ajst-28818	325	24	the	the	DET
ajst-28818	325	25	initial	initial	ADJ
ajst-28818	325	26	system	system	NOUN
ajst-28818	325	27	displacement	displacement	NOUN
ajst-28818	325	28	.	.	PUNCT
ajst-28818	326	1	the	the	DET
ajst-28818	326	2	error	error	NOUN
ajst-28818	326	3	accuracy	accuracy	NOUN
ajst-28818	326	4	is	be	AUX
ajst-28818	326	5	taken	take	VERB
ajst-28818	326	6	to	to	PART
ajst-28818	326	7	be	be	AUX
ajst-28818	326	8	1e-4	1e-4	PROPN
ajst-28818	326	9	.	.	PUNCT
ajst-28818	327	1	the	the	DET
ajst-28818	327	2	process	process	NOUN
ajst-28818	327	3	of	of	ADP
ajst-28818	327	4	riserless	riserless	NOUN
ajst-28818	327	5	drill	drill	NOUN
ajst-28818	327	6	-	-	PUNCT
ajst-28818	327	7	string	string	NOUN
ajst-28818	327	8	displacement	displacement	ADJ
ajst-28818	327	9	field	field	NOUN
ajst-28818	327	10	initialization	initialization	NOUN
ajst-28818	327	11	and	and	CCONJ
ajst-28818	327	12	bidirectional	bidirectional	ADJ
ajst-28818	327	13	coupling	coupling	NOUN
ajst-28818	327	14	solution	solution	NOUN
ajst-28818	327	15	is	be	AUX
ajst-28818	327	16	shown	show	VERB
ajst-28818	327	17	in	in	ADP
ajst-28818	327	18	fig	fig	NOUN
ajst-28818	327	19	.	.	PUNCT
ajst-28818	328	1	6	6	NUM
ajst-28818	328	2	.	.	X
ajst-28818	328	3	input	input	NOUN
ajst-28818	328	4	parameters	parameter	NOUN
ajst-28818	328	5	and	and	CCONJ
ajst-28818	328	6	division	division	NOUN
ajst-28818	328	7	of	of	ADP
ajst-28818	328	8	drilling	drilling	NOUN
ajst-28818	328	9	units	unit	NOUN
ajst-28818	328	10	calculate	calculate	VERB
ajst-28818	328	11	initial	initial	ADJ
ajst-28818	328	12	load	load	NOUN
ajst-28818	328	13	array	array	VERB
ajst-28818	328	14	initial	initial	ADJ
ajst-28818	328	15	displacement	displacement	ADJ
ajst-28818	328	16	array	array	NOUN
ajst-28818	328	17	calculate	calculate	VERB
ajst-28818	328	18	mass	mass	ADJ
ajst-28818	328	19	matrix	matrix	NOUN
ajst-28818	328	20	0tf	0tf	NUM
ajst-28818	328	21	0td	0td	NOUN
ajst-28818	328	22	calculate	calculate	VERB
ajst-28818	328	23	stiffness	stiffness	ADJ
ajst-28818	328	24	matrix	matrix	NOUN
ajst-28818	328	25	1	1	NUM
ajst-28818	328	26	2k	2k	NUM
ajst-28818	329	1	k	k	X
ajst-28818	329	2	，	，	PROPN
ajst-28818	329	3	1	1	NUM
ajst-28818	329	4	0	0	NUM
ajst-28818	329	5	0	0	NUM
ajst-28818	330	1	i	i	PRON
ajst-28818	330	2	t	t	VERB
ajst-28818	330	3	t	t	PRON
ajst-28818	330	4	k	k	VERB
ajst-28818	330	5	d	d	X
ajst-28818	330	6	f	f	PROPN
ajst-28818	330	7	2	2	NUM
ajst-28818	330	8	0	0	NUM
ajst-28818	330	9	0	0	NUM
ajst-28818	331	1	i	i	PRON
ajst-28818	331	2	t	t	VERB
ajst-28818	331	3	t	t	PRON
ajst-28818	331	4	k	k	VERB
ajst-28818	331	5	d	d	X
ajst-28818	331	6	f	f	PROPN
ajst-28818	331	7	obtained	obtain	VERB
ajst-28818	331	8	the	the	DET
ajst-28818	331	9	lateral	lateral	ADJ
ajst-28818	331	10	and	and	CCONJ
ajst-28818	331	11	torsional	torsional	ADJ
ajst-28818	331	12	displacement	displacement	NOUN
ajst-28818	331	13	obtained	obtain	VERB
ajst-28818	331	14	the	the	DET
ajst-28818	331	15	axial	axial	ADJ
ajst-28818	331	16	displacement	displacement	NOUN
ajst-28818	331	17	0	0	PUNCT
ajst-28818	332	1	i	i	PRON
ajst-28818	332	2	td	td	VERB
ajst-28818	332	3	1	1	NUM
ajst-28818	332	4	4	4	NUM
ajst-28818	332	5	0	0	NUM
ajst-28818	332	6	0	0	NUM
ajst-28818	332	7	1ei	1ei	NOUN
ajst-28818	333	1	i	i	PRON
ajst-28818	333	2	t	t	PROPN
ajst-28818	333	3	t	t	PROPN
ajst-28818	333	4			PROPN
ajst-28818	333	5			PROPN
ajst-28818	333	6			PROPN
ajst-28818	333	7			NOUN
ajst-28818	333	8	d	d	PUNCT
ajst-28818	333	9	d1i	d1i	PROPN
ajst-28818	333	10	i	i	NOUN
ajst-28818	333	11			PUNCT
ajst-28818	333	12	no	no	INTJ
ajst-28818	334	1	yes	yes	INTJ
ajst-28818	334	2	m	m	VERB
ajst-28818	334	3	calculate	calculate	VERB
ajst-28818	334	4	stiffness	stiffness	NOUN
ajst-28818	334	5	matrix	matrix	NOUN
ajst-28818	334	6	calculate	calculate	NOUN
ajst-28818	334	7	damping	damp	VERB
ajst-28818	334	8	matrix	matrix	NOUN
ajst-28818	334	9	calculate	calculate	NOUN
ajst-28818	334	10	load	load	NOUN
ajst-28818	334	11	array	array	NOUN
ajst-28818	334	12	1	1	NUM
ajst-28818	334	13	2k	2k	NUM
ajst-28818	335	1	k	k	X
ajst-28818	335	2	，	，	PROPN
ajst-28818	335	3	1	1	NUM
ajst-28818	335	4	2c	2c	NUM
ajst-28818	335	5	c	c	NOUN
ajst-28818	335	6	，	，	PROPN
ajst-28818	335	7	1	1	NUM
ajst-28818	335	8	1	1	NUM
ajst-28818	335	9			ADV
ajst-28818	335	10	md	md	NOUN
ajst-28818	335	11	c	c	PROPN
ajst-28818	336	1	d	d	X
ajst-28818	336	2	k	k	PROPN
ajst-28818	336	3	d	d	X
ajst-28818	336	4	f	f	ADJ
ajst-28818	336	5			NOUN
ajst-28818	336	6	f	f	NOUN
ajst-28818	336	7	2	2	NUM
ajst-28818	336	8	2	2	NUM
ajst-28818	336	9			NOUN
ajst-28818	336	10	md	md	NOUN
ajst-28818	336	11	c	c	PROPN
ajst-28818	337	1	d	d	X
ajst-28818	337	2	k	k	PROPN
ajst-28818	337	3	d	d	X
ajst-28818	337	4	f	f	ADJ
ajst-28818	337	5			NOUN
ajst-28818	337	6	obtained	obtain	VERB
ajst-28818	337	7	the	the	DET
ajst-28818	337	8	lateral	lateral	ADJ
ajst-28818	337	9	and	and	CCONJ
ajst-28818	337	10	torsional	torsional	ADJ
ajst-28818	337	11	acceleration	acceleration	NOUN
ajst-28818	337	12	velocity	velocity	NOUN
ajst-28818	337	13	and	and	CCONJ
ajst-28818	337	14	displacement	displacement	NOUN
ajst-28818	337	15	obtained	obtain	VERB
ajst-28818	337	16	the	the	DET
ajst-28818	337	17	axial	axial	ADJ
ajst-28818	337	18	acceleration	acceleration	NOUN
ajst-28818	337	19	velocity	velocity	NOUN
ajst-28818	337	20	and	and	CCONJ
ajst-28818	337	21	displacement	displacement	NOUN
ajst-28818	337	22	(	(	PUNCT
ajst-28818	337	23	)	)	PUNCT
ajst-28818	337	24	(	(	PUNCT
ajst-28818	337	25	)	)	PUNCT
ajst-28818	337	26	(	(	PUNCT
ajst-28818	337	27	)	)	PUNCT
ajst-28818	337	28	it	it	PRON
ajst-28818	337	29	it	it	PRON
ajst-28818	337	30	it	it	PRON
ajst-28818	338	1	d	d	NOUN
ajst-28818	338	2	d	d	ADP
ajst-28818	338	3	d	d	ADJ
ajst-28818	338	4			NOUN
ajst-28818	338	5	、	、	NOUN
ajst-28818	338	6	、	、	NOUN
ajst-28818	338	7	1it	1it	PROPN
ajst-28818	338	8	it	it	PROPN
ajst-28818	338	9			PROPN
ajst-28818	338	10	newmark	newmark	PROPN
ajst-28818	338	11	-	-	PUNCT
ajst-28818	338	12	β	β	PROPN
ajst-28818	338	13	initial	initial	ADJ
ajst-28818	338	14	 	 	SPACE
ajst-28818	338	15	displacement	displacement	NOUN
ajst-28818	338	16	  	  	SPACE
ajst-28818	338	17	field	field	NOUN
ajst-28818	338	18	 	 	SPACE
ajst-28818	338	19	calculation	calculation	NOUN
ajst-28818	338	20	bidirectional	bidirectional	NOUN
ajst-28818	338	21	 	 	SPACE
ajst-28818	338	22	coupled	couple	VERB
ajst-28818	338	23	  	  	SPACE
ajst-28818	338	24	solution	solution	NOUN
ajst-28818	338	25	figure	figure	NOUN
ajst-28818	338	26	6	6	NUM
ajst-28818	338	27	.	.	PUNCT
ajst-28818	339	1	the	the	DET
ajst-28818	339	2	process	process	NOUN
ajst-28818	339	3	of	of	ADP
ajst-28818	339	4	riserless	riserless	NOUN
ajst-28818	339	5	drill	drill	NOUN
ajst-28818	339	6	-	-	PUNCT
ajst-28818	339	7	string	string	NOUN
ajst-28818	339	8	displacement	displacement	ADJ
ajst-28818	339	9	field	field	NOUN
ajst-28818	339	10	initialization	initialization	NOUN
ajst-28818	339	11	and	and	CCONJ
ajst-28818	339	12	bidirectional	bidirectional	ADJ
ajst-28818	339	13	coupling	coupling	NOUN
ajst-28818	339	14	solution	solution	NOUN
ajst-28818	339	15	based	base	VERB
ajst-28818	339	16	on	on	ADP
ajst-28818	339	17	the	the	DET
ajst-28818	339	18	above	above	ADJ
ajst-28818	339	19	models	model	NOUN
ajst-28818	339	20	and	and	CCONJ
ajst-28818	339	21	matlab	matlab	PROPN
ajst-28818	339	22	software	software	NOUN
ajst-28818	339	23	,	,	PUNCT
ajst-28818	339	24	we	we	PRON
ajst-28818	339	25	developed	develop	VERB
ajst-28818	339	26	the	the	DET
ajst-28818	339	27	computational	computational	ADJ
ajst-28818	339	28	program	program	NOUN
ajst-28818	339	29	:	:	PUNCT
ajst-28818	339	30	coupling	couple	VERB
ajst-28818	339	31	vibration	vibration	NOUN
ajst-28818	339	32	of	of	ADP
ajst-28818	339	33	riserless	riserless	NOUN
ajst-28818	339	34	drill	drill	NOUN
ajst-28818	339	35	-	-	PUNCT
ajst-28818	339	36	string	string	NOUN
ajst-28818	339	37	for	for	ADP
ajst-28818	339	38	alt	alt	VERB
ajst-28818	339	39	coupling	couple	VERB
ajst-28818	339	40	nonlinear	nonlinear	ADJ
ajst-28818	339	41	vibration	vibration	NOUN
ajst-28818	339	42	analysis	analysis	NOUN
ajst-28818	339	43	of	of	ADP
ajst-28818	339	44	deepwater	deepwater	ADJ
ajst-28818	339	45	riserless	riserless	NOUN
ajst-28818	339	46	drill	drill	NOUN
ajst-28818	339	47	-	-	PUNCT
ajst-28818	339	48	string	string	NOUN
ajst-28818	339	49	.	.	PUNCT
ajst-28818	340	1	next	next	ADV
ajst-28818	340	2	,	,	PUNCT
ajst-28818	340	3	we	we	PRON
ajst-28818	340	4	will	will	AUX
ajst-28818	340	5	test	test	VERB
ajst-28818	340	6	the	the	DET
ajst-28818	340	7	effectiveness	effectiveness	NOUN
ajst-28818	340	8	and	and	CCONJ
ajst-28818	340	9	adaptability	adaptability	NOUN
ajst-28818	340	10	of	of	ADP
ajst-28818	340	11	the	the	DET
ajst-28818	340	12	model	model	NOUN
ajst-28818	340	13	and	and	CCONJ
ajst-28818	340	14	code	code	NOUN
ajst-28818	340	15	.	.	PUNCT
ajst-28818	341	1	2.8	2.8	NUM
ajst-28818	341	2	.	.	PUNCT
ajst-28818	341	3	model	model	NOUN
ajst-28818	341	4	validation	validation	NOUN
ajst-28818	341	5	at	at	ADP
ajst-28818	341	6	present	present	ADJ
ajst-28818	341	7	,	,	PUNCT
ajst-28818	341	8	the	the	DET
ajst-28818	341	9	research	research	NOUN
ajst-28818	341	10	on	on	ADP
ajst-28818	341	11	the	the	DET
ajst-28818	341	12	dynamics	dynamic	NOUN
ajst-28818	341	13	of	of	ADP
ajst-28818	341	14	riserless	riserless	NOUN
ajst-28818	341	15	drillstring	drillstring	NOUN
ajst-28818	341	16	is	be	AUX
ajst-28818	341	17	still	still	ADV
ajst-28818	341	18	limited	limit	VERB
ajst-28818	341	19	,	,	PUNCT
ajst-28818	341	20	and	and	CCONJ
ajst-28818	341	21	the	the	DET
ajst-28818	341	22	experimental	experimental	ADJ
ajst-28818	341	23	and	and	CCONJ
ajst-28818	341	24	field	field	NOUN
ajst-28818	341	25	test	test	NOUN
ajst-28818	341	26	study	study	NOUN
ajst-28818	341	27	on	on	ADP
ajst-28818	341	28	vibration	vibration	NOUN
ajst-28818	341	29	have	have	AUX
ajst-28818	341	30	not	not	PART
ajst-28818	341	31	been	be	AUX
ajst-28818	341	32	reported	report	VERB
ajst-28818	341	33	.	.	PUNCT
ajst-28818	342	1	therefore	therefore	ADV
ajst-28818	342	2	,	,	PUNCT
ajst-28818	342	3	this	this	DET
ajst-28818	342	4	paper	paper	NOUN
ajst-28818	342	5	uses	use	VERB
ajst-28818	342	6	kyllingstad	kyllingstad	NOUN
ajst-28818	342	7	and	and	CCONJ
ajst-28818	342	8	nessjøen	nessjøen	NOUN
ajst-28818	342	9	(	(	PUNCT
ajst-28818	342	10	2009	2009	NUM
ajst-28818	342	11	)	)	PUNCT
ajst-28818	342	12	and	and	CCONJ
ajst-28818	342	13	teng	teng	PROPN
ajst-28818	342	14	et	et	PROPN
ajst-28818	342	15	al	al	PROPN
ajst-28818	342	16	,	,	PUNCT
ajst-28818	342	17	(	(	PUNCT
ajst-28818	342	18	2017	2017	NUM
ajst-28818	342	19	)	)	PUNCT
ajst-28818	342	20	's	's	PART
ajst-28818	342	21	drill	drill	NOUN
ajst-28818	342	22	-	-	PUNCT
ajst-28818	342	23	string	string	NOUN
ajst-28818	342	24	field	field	NOUN
ajst-28818	342	25	test	test	NOUN
ajst-28818	342	26	results	result	NOUN
ajst-28818	342	27	,	,	PUNCT
ajst-28818	342	28	as	as	ADV
ajst-28818	342	29	well	well	ADV
ajst-28818	342	30	as	as	ADP
ajst-28818	342	31	four	four	NUM
ajst-28818	342	32	example	example	NOUN
ajst-28818	342	33	well	well	INTJ
ajst-28818	342	34	parameters	parameter	NOUN
ajst-28818	342	35	(	(	PUNCT
ajst-28818	342	36	ld	ld	PROPN
ajst-28818	342	37	-	-	PUNCT
ajst-28818	342	38	a	a	NOUN
ajst-28818	342	39	,	,	PUNCT
ajst-28818	342	40	ld	ld	PROPN
ajst-28818	342	41	-	-	PUNCT
ajst-28818	342	42	b	b	NOUN
ajst-28818	342	43	,	,	PUNCT
ajst-28818	342	44	ld	ld	PROPN
ajst-28818	342	45	-	-	PUNCT
ajst-28818	342	46	c	c	PROPN
ajst-28818	342	47	and	and	CCONJ
ajst-28818	342	48	ld	ld	PROPN
ajst-28818	342	49	-	-	PUNCT
ajst-28818	342	50	d	d	NOUN
ajst-28818	342	51	)	)	PUNCT
ajst-28818	342	52	in	in	ADP
ajst-28818	342	53	ledong	ledong	ADJ
ajst-28818	342	54	,	,	PUNCT
ajst-28818	342	55	south	south	PROPN
ajst-28818	342	56	china	china	PROPN
ajst-28818	342	57	sea	sea	PROPN
ajst-28818	342	58	to	to	PART
ajst-28818	342	59	analyze	analyze	VERB
ajst-28818	342	60	the	the	DET
ajst-28818	342	61	correctness	correctness	NOUN
ajst-28818	342	62	and	and	CCONJ
ajst-28818	342	63	validity	validity	NOUN
ajst-28818	342	64	of	of	ADP
ajst-28818	342	65	the	the	DET
ajst-28818	342	66	model	model	NOUN
ajst-28818	342	67	.	.	PUNCT
ajst-28818	343	1	(	(	PUNCT
ajst-28818	343	2	1	1	X
ajst-28818	343	3	)	)	PUNCT
ajst-28818	343	4	correctness	correctness	NOUN
ajst-28818	343	5	verification	verification	NOUN
ajst-28818	343	6	tab.1	tab.1	PROPN
ajst-28818	343	7	and	and	CCONJ
ajst-28818	343	8	tab.2	tab.2	NOUN
ajst-28818	343	9	show	show	VERB
ajst-28818	343	10	the	the	DET
ajst-28818	343	11	drill	drill	NOUN
ajst-28818	343	12	-	-	PUNCT
ajst-28818	343	13	string	string	NOUN
ajst-28818	343	14	field	field	NOUN
ajst-28818	343	15	parameters	parameter	NOUN
ajst-28818	343	16	of	of	ADP
ajst-28818	343	17	kyllingstad	kyllingstad	NOUN
ajst-28818	343	18	and	and	CCONJ
ajst-28818	343	19	nessjøen	nessjøen	NOUN
ajst-28818	343	20	(	(	PUNCT
ajst-28818	343	21	2009	2009	NUM
ajst-28818	343	22	)	)	PUNCT
ajst-28818	343	23	and	and	CCONJ
ajst-28818	343	24	teng	teng	PROPN
ajst-28818	343	25	et	et	PROPN
ajst-28818	343	26	al	al	PROPN
ajst-28818	343	27	,	,	PUNCT
ajst-28818	343	28	(	(	PUNCT
ajst-28818	343	29	2017	2017	NUM
ajst-28818	343	30	)	)	PUNCT
ajst-28818	343	31	respectively	respectively	ADV
ajst-28818	343	32	.	.	PUNCT
ajst-28818	344	1	fig.7	fig.7	ADJ
ajst-28818	344	2	shows	show	VERB
ajst-28818	344	3	comparisons	comparison	NOUN
ajst-28818	344	4	between	between	ADP
ajst-28818	344	5	the	the	DET
ajst-28818	344	6	numerical	numerical	ADJ
ajst-28818	344	7	simulations	simulation	NOUN
ajst-28818	344	8	of	of	ADP
ajst-28818	344	9	the	the	DET
ajst-28818	344	10	model	model	NOUN
ajst-28818	344	11	and	and	CCONJ
ajst-28818	344	12	the	the	DET
ajst-28818	344	13	field	field	NOUN
ajst-28818	344	14	test	test	NOUN
ajst-28818	344	15	results	result	NOUN
ajst-28818	344	16	.	.	PUNCT
ajst-28818	345	1	the	the	DET
ajst-28818	345	2	red	red	ADJ
ajst-28818	345	3	curve	curve	NOUN
ajst-28818	345	4	in	in	ADP
ajst-28818	345	5	fig.7(a	fig.7(a	ADV
ajst-28818	345	6	)	)	PUNCT
ajst-28818	345	7	is	be	AUX
ajst-28818	345	8	from	from	ADP
ajst-28818	345	9	the	the	DET
ajst-28818	345	10	data	datum	NOUN
ajst-28818	345	11	of	of	ADP
ajst-28818	345	12	kyllingstad	kyllingstad	PROPN
ajst-28818	345	13	field	field	PROPN
ajst-28818	345	14	test	test	NOUN
ajst-28818	345	15	within	within	ADP
ajst-28818	345	16	4200~4240	4200~4240	NOUN
ajst-28818	345	17	s.	s.	PROPN
ajst-28818	345	18	it	it	PRON
ajst-28818	345	19	can	can	AUX
ajst-28818	345	20	be	be	AUX
ajst-28818	345	21	seen	see	VERB
ajst-28818	345	22	that	that	SCONJ
ajst-28818	345	23	the	the	DET
ajst-28818	345	24	maximum	maximum	ADJ
ajst-28818	345	25	angular	angular	ADJ
ajst-28818	345	26	velocity	velocity	NOUN
ajst-28818	345	27	of	of	ADP
ajst-28818	345	28	the	the	DET
ajst-28818	345	29	bit	bit	NOUN
ajst-28818	345	30	obtained	obtain	VERB
ajst-28818	345	31	from	from	ADP
ajst-28818	345	32	the	the	DET
ajst-28818	345	33	model	model	NOUN
ajst-28818	345	34	in	in	ADP
ajst-28818	345	35	this	this	DET
ajst-28818	345	36	paper	paper	NOUN
ajst-28818	345	37	and	and	CCONJ
ajst-28818	345	38	the	the	DET
ajst-28818	345	39	two	two	NUM
ajst-28818	345	40	field	field	NOUN
ajst-28818	345	41	tests	test	NOUN
ajst-28818	345	42	are	be	AUX
ajst-28818	345	43	consistent	consistent	ADJ
ajst-28818	345	44	in	in	ADP
ajst-28818	345	45	both	both	DET
ajst-28818	345	46	trend	trend	NOUN
ajst-28818	345	47	and	and	CCONJ
ajst-28818	345	48	magnitude	magnitude	NOUN
ajst-28818	345	49	.	.	PUNCT
ajst-28818	346	1	in	in	ADP
ajst-28818	346	2	fig.7(a	fig.7(a	ADV
ajst-28818	346	3	)	)	PUNCT
ajst-28818	346	4	,	,	PUNCT
ajst-28818	346	5	the	the	DET
ajst-28818	346	6	numerical	numerical	PROPN
ajst-28818	346	7	simulation	simulation	PROPN
ajst-28818	346	8	and	and	CCONJ
ajst-28818	346	9	field	field	NOUN
ajst-28818	346	10	test	test	NOUN
ajst-28818	346	11	results	result	NOUN
ajst-28818	346	12	show	show	VERB
ajst-28818	346	13	that	that	SCONJ
ajst-28818	346	14	the	the	DET
ajst-28818	346	15	maximum	maximum	ADJ
ajst-28818	346	16	rotational	rotational	ADJ
ajst-28818	346	17	speed	speed	NOUN
ajst-28818	346	18	of	of	ADP
ajst-28818	346	19	the	the	DET
ajst-28818	346	20	bit	bit	NOUN
ajst-28818	346	21	is	be	AUX
ajst-28818	346	22	21.96	21.96	NUM
ajst-28818	346	23	rad	rad	NOUN
ajst-28818	346	24	/	/	SYM
ajst-28818	346	25	s	s	X
ajst-28818	346	26	and	and	CCONJ
ajst-28818	346	27	21.67	21.67	NUM
ajst-28818	346	28	rad	rad	PROPN
ajst-28818	346	29	/	/	SYM
ajst-28818	346	30	s	s	PROPN
ajst-28818	346	31	,	,	PUNCT
ajst-28818	346	32	respectively	respectively	ADV
ajst-28818	346	33	,	,	PUNCT
ajst-28818	346	34	and	and	CCONJ
ajst-28818	346	35	the	the	DET
ajst-28818	346	36	frequency	frequency	NOUN
ajst-28818	346	37	of	of	ADP
ajst-28818	346	38	stickslip	stickslip	ADJ
ajst-28818	346	39	vibration	vibration	NOUN
ajst-28818	346	40	of	of	ADP
ajst-28818	346	41	the	the	DET
ajst-28818	346	42	bit	bit	NOUN
ajst-28818	346	43	is	be	AUX
ajst-28818	346	44	0.2	0.2	NUM
ajst-28818	346	45	hz	hz	NOUN
ajst-28818	346	46	and	and	CCONJ
ajst-28818	346	47	0.19hz	0.19hz	NUM
ajst-28818	346	48	,	,	PUNCT
ajst-28818	346	49	respectively	respectively	ADV
ajst-28818	346	50	,	,	PUNCT
ajst-28818	346	51	and	and	CCONJ
ajst-28818	346	52	the	the	DET
ajst-28818	346	53	maximum	maximum	ADJ
ajst-28818	346	54	speed	speed	NOUN
ajst-28818	346	55	error	error	NOUN
ajst-28818	346	56	is	be	AUX
ajst-28818	346	57	only	only	ADV
ajst-28818	346	58	1	1	NUM
ajst-28818	346	59	%	%	NOUN
ajst-28818	346	60	.	.	PUNCT
ajst-28818	347	1	in	in	ADP
ajst-28818	347	2	fig	fig	NOUN
ajst-28818	347	3	.	.	PUNCT
ajst-28818	348	1	7(b	7(b	X
ajst-28818	348	2	)	)	PUNCT
ajst-28818	348	3	,	,	PUNCT
ajst-28818	348	4	the	the	DET
ajst-28818	348	5	maximum	maximum	ADJ
ajst-28818	348	6	rotational	rotational	ADJ
ajst-28818	348	7	speed	speed	NOUN
ajst-28818	348	8	of	of	ADP
ajst-28818	348	9	field	field	NOUN
ajst-28818	348	10	test	test	NOUN
ajst-28818	348	11	data	datum	NOUN
ajst-28818	348	12	is	be	AUX
ajst-28818	348	13	34.54	34.54	NUM
ajst-28818	348	14	rad	rad	PROPN
ajst-28818	348	15	/	/	SYM
ajst-28818	348	16	s	s	PROPN
ajst-28818	348	17	,	,	PUNCT
ajst-28818	348	18	which	which	PRON
ajst-28818	348	19	is	be	AUX
ajst-28818	348	20	obviously	obviously	ADV
ajst-28818	348	21	higher	high	ADJ
ajst-28818	348	22	than	than	ADP
ajst-28818	348	23	the	the	DET
ajst-28818	348	24	peak	peak	NOUN
ajst-28818	348	25	speed	speed	NOUN
ajst-28818	348	26	in	in	ADP
ajst-28818	348	27	other	other	ADJ
ajst-28818	348	28	measured	measure	VERB
ajst-28818	348	29	data	datum	NOUN
ajst-28818	348	30	.	.	PUNCT
ajst-28818	349	1	therefore	therefore	ADV
ajst-28818	349	2	,	,	PUNCT
ajst-28818	349	3	the	the	DET
ajst-28818	349	4	maximum	maximum	ADJ
ajst-28818	349	5	rotational	rotational	ADJ
ajst-28818	349	6	speed	speed	NOUN
ajst-28818	349	7	of	of	ADP
ajst-28818	349	8	34.51rad	34.51rad	NUM
ajst-28818	349	9	/	/	SYM
ajst-28818	349	10	s	s	PART
ajst-28818	349	11	is	be	AUX
ajst-28818	349	12	accidental	accidental	ADJ
ajst-28818	349	13	and	and	CCONJ
ajst-28818	349	14	can	can	AUX
ajst-28818	349	15	not	not	PART
ajst-28818	349	16	reflect	reflect	VERB
ajst-28818	349	17	the	the	DET
ajst-28818	349	18	general	general	ADJ
ajst-28818	349	19	law	law	NOUN
ajst-28818	349	20	of	of	ADP
ajst-28818	349	21	stick	stick	NOUN
ajst-28818	349	22	-	-	PUNCT
ajst-28818	349	23	slip	slip	NOUN
ajst-28818	349	24	vibration	vibration	NOUN
ajst-28818	349	25	of	of	ADP
ajst-28818	349	26	the	the	DET
ajst-28818	349	27	bit	bit	NOUN
ajst-28818	349	28	.	.	PUNCT
ajst-28818	350	1	the	the	DET
ajst-28818	350	2	maximum	maximum	ADJ
ajst-28818	350	3	speed	speed	NOUN
ajst-28818	350	4	should	should	AUX
ajst-28818	350	5	be	be	AUX
ajst-28818	350	6	removed	remove	VERB
ajst-28818	350	7	in	in	ADP
ajst-28818	350	8	the	the	DET
ajst-28818	350	9	data	datum	NOUN
ajst-28818	350	10	comparison	comparison	NOUN
ajst-28818	350	11	,	,	PUNCT
ajst-28818	350	12	and	and	CCONJ
ajst-28818	350	13	the	the	DET
ajst-28818	350	14	maximum	maximum	ADJ
ajst-28818	350	15	speed	speed	NOUN
ajst-28818	350	16	of	of	ADP
ajst-28818	350	17	31.68	31.68	NUM
ajst-28818	350	18	rad	rad	NOUN
ajst-28818	350	19	/	/	SYM
ajst-28818	350	20	s	s	VERB
ajst-28818	350	21	is	be	AUX
ajst-28818	350	22	obtained	obtain	VERB
ajst-28818	350	23	.	.	PUNCT
ajst-28818	351	1	then	then	ADV
ajst-28818	351	2	,	,	PUNCT
ajst-28818	351	3	by	by	ADP
ajst-28818	351	4	comparing	compare	VERB
ajst-28818	351	5	the	the	DET
ajst-28818	351	6	drilling	drilling	NOUN
ajst-28818	351	7	bit	bit	NOUN
ajst-28818	351	8	rotational	rotational	ADJ
ajst-28818	351	9	speed	speed	NOUN
ajst-28818	351	10	amplitude	amplitude	NOUN
ajst-28818	351	11	,	,	PUNCT
ajst-28818	351	12	the	the	DET
ajst-28818	351	13	accuracy	accuracy	NOUN
ajst-28818	351	14	of	of	ADP
ajst-28818	351	15	model	model	NOUN
ajst-28818	351	16	is	be	AUX
ajst-28818	351	17	88.96	88.96	NUM
ajst-28818	351	18	%	%	NOUN
ajst-28818	351	19	.	.	PUNCT
ajst-28818	352	1	in	in	ADP
ajst-28818	352	2	addition	addition	NOUN
ajst-28818	352	3	,	,	PUNCT
ajst-28818	352	4	the	the	DET
ajst-28818	352	5	stick	stick	NOUN
ajst-28818	352	6	-	-	PUNCT
ajst-28818	352	7	slip	slip	NOUN
ajst-28818	352	8	vibration	vibration	NOUN
ajst-28818	352	9	frequencies	frequency	NOUN
ajst-28818	352	10	are	be	AUX
ajst-28818	352	11	0.102	0.102	NUM
ajst-28818	352	12	hz	hz	NOUN
ajst-28818	352	13	and	and	CCONJ
ajst-28818	352	14	0.108	0.108	NUM
ajst-28818	352	15	hz	hz	NOUN
ajst-28818	352	16	,	,	PUNCT
ajst-28818	352	17	respectively	respectively	ADV
ajst-28818	352	18	.	.	PUNCT
ajst-28818	353	1	the	the	DET
ajst-28818	353	2	comparison	comparison	NOUN
ajst-28818	353	3	of	of	ADP
ajst-28818	353	4	the	the	DET
ajst-28818	353	5	numerical	numerical	ADJ
ajst-28818	353	6	results	result	NOUN
ajst-28818	353	7	of	of	ADP
ajst-28818	353	8	the	the	DET
ajst-28818	353	9	proposed	propose	VERB
ajst-28818	353	10	model	model	NOUN
ajst-28818	353	11	with	with	ADP
ajst-28818	353	12	two	two	NUM
ajst-28818	353	13	field	field	NOUN
ajst-28818	353	14	tests	test	NOUN
ajst-28818	353	15	proves	prove	VERB
ajst-28818	353	16	the	the	DET
ajst-28818	353	17	correctness	correctness	NOUN
ajst-28818	353	18	of	of	ADP
ajst-28818	353	19	the	the	DET
ajst-28818	353	20	proposed	propose	VERB
ajst-28818	353	21	model	model	NOUN
ajst-28818	353	22	.	.	PUNCT
ajst-28818	354	1	table	table	NOUN
ajst-28818	354	2	1	1	NUM
ajst-28818	354	3	.	.	PUNCT
ajst-28818	354	4	model	model	NOUN
ajst-28818	354	5	calculation	calculation	NOUN
ajst-28818	354	6	parameters	parameter	NOUN
ajst-28818	354	7	item	item	NOUN
ajst-28818	354	8	value	value	NOUN
ajst-28818	354	9	item	item	NOUN
ajst-28818	354	10	value	value	NOUN
ajst-28818	354	11	inner	inner	ADJ
ajst-28818	354	12	/	/	SYM
ajst-28818	354	13	outer	outer	ADJ
ajst-28818	354	14	diameter	diameter	NOUN
ajst-28818	354	15	of	of	ADP
ajst-28818	354	16	the	the	DET
ajst-28818	354	17	drill	drill	NOUN
ajst-28818	354	18	-	-	PUNCT
ajst-28818	354	19	string	string	NOUN
ajst-28818	354	20	1	1	NUM
ajst-28818	354	21	(	(	PUNCT
ajst-28818	354	22	m	m	NOUN
ajst-28818	354	23	)	)	PUNCT
ajst-28818	354	24	0.1214/0.1397	0.1214/0.1397	NOUN
ajst-28818	354	25	inner	inner	ADJ
ajst-28818	354	26	diameter	diameter	NOUN
ajst-28818	354	27	of	of	ADP
ajst-28818	354	28	the	the	DET
ajst-28818	354	29	hba	hba	NOUN
ajst-28818	354	30	(	(	PUNCT
ajst-28818	354	31	m	m	NOUN
ajst-28818	354	32	)	)	PUNCT
ajst-28818	354	33	0.0635	0.0635	NUM
ajst-28818	354	34	length	length	NOUN
ajst-28818	354	35	of	of	ADP
ajst-28818	354	36	the	the	DET
ajst-28818	354	37	drill	drill	NOUN
ajst-28818	354	38	-	-	PUNCT
ajst-28818	354	39	string	string	NOUN
ajst-28818	354	40	1	1	NUM
ajst-28818	354	41	(	(	PUNCT
ajst-28818	354	42	m	m	NOUN
ajst-28818	354	43	)	)	PUNCT
ajst-28818	354	44	6200	6200	NUM
ajst-28818	354	45	outer	outer	ADJ
ajst-28818	354	46	diameter	diameter	NOUN
ajst-28818	354	47	of	of	ADP
ajst-28818	354	48	the	the	DET
ajst-28818	354	49	hba	hba	NOUN
ajst-28818	354	50	(	(	PUNCT
ajst-28818	354	51	m	m	NOUN
ajst-28818	354	52	)	)	PUNCT
ajst-28818	354	53	0.2032	0.2032	NUM
ajst-28818	354	54	inner	inner	ADJ
ajst-28818	354	55	/	/	SYM
ajst-28818	354	56	outer	outer	ADJ
ajst-28818	354	57	diameter	diameter	NOUN
ajst-28818	354	58	of	of	ADP
ajst-28818	354	59	the	the	DET
ajst-28818	354	60	drill	drill	NOUN
ajst-28818	354	61	-	-	PUNCT
ajst-28818	354	62	string	string	NOUN
ajst-28818	354	63	2	2	NUM
ajst-28818	354	64	(	(	PUNCT
ajst-28818	354	65	m	m	NOUN
ajst-28818	354	66	)	)	PUNCT
ajst-28818	354	67	0.1086/0.127	0.1086/0.127	PROPN
ajst-28818	354	68	length	length	NOUN
ajst-28818	354	69	of	of	ADP
ajst-28818	354	70	the	the	DET
ajst-28818	354	71	hba	hba	NOUN
ajst-28818	354	72	(	(	PUNCT
ajst-28818	354	73	m	m	NOUN
ajst-28818	354	74	)	)	PUNCT
ajst-28818	354	75	100	100	NUM
ajst-28818	354	76	length	length	NOUN
ajst-28818	354	77	of	of	ADP
ajst-28818	354	78	the	the	DET
ajst-28818	354	79	drill	drill	NOUN
ajst-28818	354	80	-	-	PUNCT
ajst-28818	354	81	string	string	NOUN
ajst-28818	354	82	2	2	NUM
ajst-28818	354	83	(	(	PUNCT
ajst-28818	354	84	m	m	NOUN
ajst-28818	354	85	)	)	PUNCT
ajst-28818	354	86	800	800	NUM
ajst-28818	354	87	rotational	rotational	ADJ
ajst-28818	354	88	velocity	velocity	NOUN
ajst-28818	354	89	(	(	PUNCT
ajst-28818	354	90	rad	rad	NOUN
ajst-28818	354	91	/	/	SYM
ajst-28818	354	92	s	s	PART
ajst-28818	354	93	)	)	PUNCT
ajst-28818	354	94	9.42	9.42	NUM
ajst-28818	354	95	290	290	NUM
ajst-28818	354	96	table	table	NOUN
ajst-28818	354	97	2	2	NUM
ajst-28818	354	98	.	.	PUNCT
ajst-28818	354	99	model	model	NOUN
ajst-28818	354	100	calculation	calculation	NOUN
ajst-28818	354	101	parameters	parameter	NOUN
ajst-28818	354	102	item	item	NOUN
ajst-28818	354	103	value	value	NOUN
ajst-28818	354	104	item	item	NOUN
ajst-28818	354	105	value	value	NOUN
ajst-28818	354	106	inner	inner	ADJ
ajst-28818	354	107	/	/	SYM
ajst-28818	354	108	outer	outer	ADJ
ajst-28818	354	109	diameter	diameter	NOUN
ajst-28818	354	110	of	of	ADP
ajst-28818	354	111	the	the	DET
ajst-28818	354	112	drill	drill	NOUN
ajst-28818	354	113	-	-	PUNCT
ajst-28818	354	114	string	string	NOUN
ajst-28818	354	115	(	(	PUNCT
ajst-28818	354	116	m	m	NOUN
ajst-28818	354	117	)	)	PUNCT
ajst-28818	354	118	0.1086/0.127	0.1086/0.127	PROPN
ajst-28818	354	119	inner	inner	ADJ
ajst-28818	354	120	diameter	diameter	NOUN
ajst-28818	354	121	of	of	ADP
ajst-28818	354	122	the	the	DET
ajst-28818	354	123	hba	hba	NOUN
ajst-28818	354	124	(	(	PUNCT
ajst-28818	354	125	m	m	NOUN
ajst-28818	354	126	)	)	PUNCT
ajst-28818	354	127	0.08573	0.08573	NUM
ajst-28818	354	128	length	length	NOUN
ajst-28818	354	129	of	of	ADP
ajst-28818	354	130	the	the	DET
ajst-28818	354	131	drill	drill	NOUN
ajst-28818	354	132	-	-	PUNCT
ajst-28818	354	133	string	string	NOUN
ajst-28818	354	134	(	(	PUNCT
ajst-28818	354	135	m	m	NOUN
ajst-28818	354	136	)	)	PUNCT
ajst-28818	354	137	6100	6100	NUM
ajst-28818	354	138	outer	outer	ADJ
ajst-28818	354	139	diameter	diameter	NOUN
ajst-28818	354	140	of	of	ADP
ajst-28818	354	141	the	the	DET
ajst-28818	354	142	hba	hba	NOUN
ajst-28818	354	143	(	(	PUNCT
ajst-28818	354	144	m	m	NOUN
ajst-28818	354	145	)	)	PUNCT
ajst-28818	354	146	0.2032	0.2032	NUM
ajst-28818	354	147	rotational	rotational	ADJ
ajst-28818	354	148	velocity	velocity	NOUN
ajst-28818	354	149	(	(	PUNCT
ajst-28818	354	150	rad	rad	NOUN
ajst-28818	354	151	/	/	SYM
ajst-28818	354	152	s	s	PART
ajst-28818	354	153	)	)	PUNCT
ajst-28818	354	154	12.56	12.56	NUM
ajst-28818	354	155	length	length	NOUN
ajst-28818	354	156	of	of	ADP
ajst-28818	354	157	the	the	DET
ajst-28818	354	158	hba	hba	NOUN
ajst-28818	354	159	(	(	PUNCT
ajst-28818	354	160	m	m	NOUN
ajst-28818	354	161	)	)	PUNCT
ajst-28818	354	162	100	100	NUM
ajst-28818	354	163	figure	figure	NOUN
ajst-28818	354	164	7	7	NUM
ajst-28818	354	165	.	.	NOUN
ajst-28818	354	166	comparison	comparison	NOUN
ajst-28818	354	167	of	of	ADP
ajst-28818	354	168	rotational	rotational	ADJ
ajst-28818	354	169	speed	speed	NOUN
ajst-28818	354	170	between	between	ADP
ajst-28818	354	171	the	the	DET
ajst-28818	354	172	proposed	propose	VERB
ajst-28818	354	173	model	model	NOUN
ajst-28818	354	174	and	and	CCONJ
ajst-28818	354	175	the	the	DET
ajst-28818	354	176	field	field	NOUN
ajst-28818	354	177	test	test	NOUN
ajst-28818	354	178	(	(	PUNCT
ajst-28818	354	179	2	2	X
ajst-28818	354	180	)	)	PUNCT
ajst-28818	354	181	validity	validity	NOUN
ajst-28818	354	182	verification	verification	NOUN
ajst-28818	354	183	the	the	DET
ajst-28818	354	184	stick	stick	NOUN
ajst-28818	354	185	-	-	PUNCT
ajst-28818	354	186	slip	slip	NOUN
ajst-28818	354	187	vibration	vibration	NOUN
ajst-28818	354	188	of	of	ADP
ajst-28818	354	189	the	the	DET
ajst-28818	354	190	drill	drill	NOUN
ajst-28818	354	191	-	-	PUNCT
ajst-28818	354	192	string	string	NOUN
ajst-28818	354	193	is	be	AUX
ajst-28818	354	194	a	a	DET
ajst-28818	354	195	deleterious	deleterious	ADJ
ajst-28818	354	196	movement	movement	NOUN
ajst-28818	354	197	in	in	ADP
ajst-28818	354	198	the	the	DET
ajst-28818	354	199	drilling	drilling	NOUN
ajst-28818	354	200	process	process	NOUN
ajst-28818	354	201	that	that	PRON
ajst-28818	354	202	seriously	seriously	ADV
ajst-28818	354	203	affects	affect	VERB
ajst-28818	354	204	the	the	DET
ajst-28818	354	205	effective	effective	ADJ
ajst-28818	354	206	drilling	drilling	NOUN
ajst-28818	354	207	of	of	ADP
ajst-28818	354	208	the	the	DET
ajst-28818	354	209	bit	bit	NOUN
ajst-28818	354	210	.	.	PUNCT
ajst-28818	355	1	that	that	PRON
ajst-28818	355	2	is	is	ADV
ajst-28818	355	3	,	,	PUNCT
ajst-28818	355	4	the	the	PRON
ajst-28818	355	5	longer	long	ADJ
ajst-28818	355	6	the	the	DET
ajst-28818	355	7	viscous	viscous	ADJ
ajst-28818	355	8	phase	phase	NOUN
ajst-28818	355	9	in	in	ADP
ajst-28818	355	10	the	the	DET
ajst-28818	355	11	stick	stick	NOUN
ajst-28818	355	12	-	-	PUNCT
ajst-28818	355	13	slip	slip	NOUN
ajst-28818	355	14	vibration	vibration	NOUN
ajst-28818	355	15	,	,	PUNCT
ajst-28818	355	16	the	the	PRON
ajst-28818	355	17	smaller	small	ADJ
ajst-28818	355	18	the	the	DET
ajst-28818	355	19	rop	rop	NOUN
ajst-28818	355	20	.	.	PUNCT
ajst-28818	356	1	then	then	ADV
ajst-28818	356	2	,	,	PUNCT
ajst-28818	356	3	the	the	DET
ajst-28818	356	4	rop	rop	NOUN
ajst-28818	356	5	can	can	AUX
ajst-28818	356	6	be	be	AUX
ajst-28818	356	7	increased	increase	VERB
ajst-28818	356	8	by	by	ADP
ajst-28818	356	9	improving	improve	VERB
ajst-28818	356	10	the	the	DET
ajst-28818	356	11	stick	stick	NOUN
ajst-28818	356	12	-	-	PUNCT
ajst-28818	356	13	slip	slip	NOUN
ajst-28818	356	14	vibration	vibration	NOUN
ajst-28818	356	15	of	of	ADP
ajst-28818	356	16	the	the	DET
ajst-28818	356	17	bit	bit	NOUN
ajst-28818	356	18	(	(	PUNCT
ajst-28818	356	19	vromen	vroman	NOUN
ajst-28818	356	20	et	et	PROPN
ajst-28818	356	21	al	al	PROPN
ajst-28818	356	22	.	.	PROPN
ajst-28818	356	23	,	,	PUNCT
ajst-28818	356	24	2019	2019	NUM
ajst-28818	356	25	)	)	PUNCT
ajst-28818	356	26	.	.	PUNCT
ajst-28818	357	1	tab.3	tab.3	NOUN
ajst-28818	357	2	show	show	VERB
ajst-28818	357	3	the	the	DET
ajst-28818	357	4	parameters	parameter	NOUN
ajst-28818	357	5	of	of	ADP
ajst-28818	357	6	four	four	NUM
ajst-28818	357	7	wells(ld	wells(ld	NOUN
ajst-28818	357	8	-	-	PUNCT
ajst-28818	357	9	a	a	NOUN
ajst-28818	357	10	,	,	PUNCT
ajst-28818	357	11	ld	ld	PROPN
ajst-28818	357	12	-	-	PUNCT
ajst-28818	357	13	b	b	NOUN
ajst-28818	357	14	,	,	PUNCT
ajst-28818	357	15	ld	ld	PROPN
ajst-28818	357	16	-	-	PUNCT
ajst-28818	357	17	c	c	NOUN
ajst-28818	357	18	,	,	PUNCT
ajst-28818	357	19	ld	ld	PROPN
ajst-28818	357	20	-	-	PUNCT
ajst-28818	357	21	d	d	NOUN
ajst-28818	357	22	)	)	PUNCT
ajst-28818	357	23	in	in	ADP
ajst-28818	357	24	ledong	ledong	ADJ
ajst-28818	357	25	block	block	NOUN
ajst-28818	357	26	,	,	PUNCT
ajst-28818	357	27	south	south	PROPN
ajst-28818	357	28	china	china	PROPN
ajst-28818	357	29	sea	sea	PROPN
ajst-28818	357	30	.	.	PUNCT
ajst-28818	358	1	the	the	DET
ajst-28818	358	2	viscous	viscous	ADJ
ajst-28818	358	3	time	time	NOUN
ajst-28818	358	4	and	and	CCONJ
ajst-28818	358	5	slippage	slippage	NOUN
ajst-28818	358	6	time	time	NOUN
ajst-28818	358	7	of	of	ADP
ajst-28818	358	8	the	the	DET
ajst-28818	358	9	drill	drill	NOUN
ajst-28818	358	10	-	-	PUNCT
ajst-28818	358	11	string	string	NOUN
ajst-28818	358	12	were	be	AUX
ajst-28818	358	13	calculated(as	calculated(as	ADJ
ajst-28818	358	14	show	show	NOUN
ajst-28818	358	15	in	in	ADP
ajst-28818	358	16	red	red	ADJ
ajst-28818	358	17	and	and	CCONJ
ajst-28818	358	18	blue	blue	ADJ
ajst-28818	358	19	,	,	PUNCT
ajst-28818	358	20	respectively	respectively	ADV
ajst-28818	358	21	,	,	PUNCT
ajst-28818	358	22	in	in	ADP
ajst-28818	358	23	fig.8	fig.8	PROPN
ajst-28818	358	24	)	)	PUNCT
ajst-28818	358	25	,	,	PUNCT
ajst-28818	358	26	which	which	PRON
ajst-28818	358	27	were	be	AUX
ajst-28818	358	28	compared	compare	VERB
ajst-28818	358	29	with	with	ADP
ajst-28818	358	30	the	the	DET
ajst-28818	358	31	measured	measure	VERB
ajst-28818	358	32	rop	rop	NOUN
ajst-28818	358	33	data(as	data(as	PROPN
ajst-28818	358	34	show	show	NOUN
ajst-28818	358	35	in	in	ADP
ajst-28818	358	36	black	black	ADJ
ajst-28818	358	37	curve	curve	NOUN
ajst-28818	358	38	of	of	ADP
ajst-28818	358	39	fig.8	fig.8	PROPN
ajst-28818	358	40	)	)	PUNCT
ajst-28818	358	41	.	.	PUNCT
ajst-28818	359	1	compared	compare	VERB
ajst-28818	359	2	with	with	ADP
ajst-28818	359	3	the	the	DET
ajst-28818	359	4	field	field	NOUN
ajst-28818	359	5	measured	measure	VERB
ajst-28818	359	6	rop	rop	PROPN
ajst-28818	359	7	data	datum	NOUN
ajst-28818	359	8	,	,	PUNCT
ajst-28818	359	9	it	it	PRON
ajst-28818	359	10	is	be	AUX
ajst-28818	359	11	found	find	VERB
ajst-28818	359	12	that	that	SCONJ
ajst-28818	359	13	the	the	DET
ajst-28818	359	14	variation	variation	NOUN
ajst-28818	359	15	trend	trend	NOUN
ajst-28818	359	16	of	of	ADP
ajst-28818	359	17	viscous	viscous	ADJ
ajst-28818	359	18	time	time	NOUN
ajst-28818	359	19	is	be	AUX
ajst-28818	359	20	negatively	negatively	ADV
ajst-28818	359	21	correlated	correlate	VERB
ajst-28818	359	22	with	with	ADP
ajst-28818	359	23	the	the	DET
ajst-28818	359	24	variation	variation	NOUN
ajst-28818	359	25	trend	trend	NOUN
ajst-28818	359	26	of	of	ADP
ajst-28818	359	27	rop	rop	NOUN
ajst-28818	359	28	,	,	PUNCT
ajst-28818	359	29	while	while	SCONJ
ajst-28818	359	30	the	the	DET
ajst-28818	359	31	slippage	slippage	NOUN
ajst-28818	359	32	time	time	NOUN
ajst-28818	359	33	is	be	AUX
ajst-28818	359	34	positively	positively	ADV
ajst-28818	359	35	correlated	correlate	VERB
ajst-28818	359	36	,	,	PUNCT
ajst-28818	359	37	indicating	indicate	VERB
ajst-28818	359	38	that	that	SCONJ
ajst-28818	359	39	with	with	ADP
ajst-28818	359	40	the	the	DET
ajst-28818	359	41	increase	increase	NOUN
ajst-28818	359	42	of	of	ADP
ajst-28818	359	43	viscous	viscous	ADJ
ajst-28818	359	44	time	time	NOUN
ajst-28818	359	45	of	of	ADP
ajst-28818	359	46	the	the	DET
ajst-28818	359	47	bit	bit	NOUN
ajst-28818	359	48	,	,	PUNCT
ajst-28818	359	49	the	the	DET
ajst-28818	359	50	time	time	NOUN
ajst-28818	359	51	of	of	ADP
ajst-28818	359	52	holding	hold	VERB
ajst-28818	359	53	drill	drill	NOUN
ajst-28818	359	54	increases	increase	NOUN
ajst-28818	359	55	,	,	PUNCT
ajst-28818	359	56	which	which	PRON
ajst-28818	359	57	obstructs	obstruct	VERB
ajst-28818	359	58	the	the	DET
ajst-28818	359	59	rock	rock	NOUN
ajst-28818	359	60	breaking	break	VERB
ajst-28818	359	61	efficiency	efficiency	NOUN
ajst-28818	359	62	and	and	CCONJ
ajst-28818	359	63	reduces	reduce	VERB
ajst-28818	359	64	the	the	DET
ajst-28818	359	65	rop	rop	NOUN
ajst-28818	359	66	.	.	PUNCT
ajst-28818	360	1	this	this	PRON
ajst-28818	360	2	shows	show	VERB
ajst-28818	360	3	that	that	SCONJ
ajst-28818	360	4	the	the	DET
ajst-28818	360	5	proposed	propose	VERB
ajst-28818	360	6	model	model	NOUN
ajst-28818	360	7	can	can	AUX
ajst-28818	360	8	effectively	effectively	ADV
ajst-28818	360	9	predict	predict	VERB
ajst-28818	360	10	the	the	DET
ajst-28818	360	11	rop	rop	NOUN
ajst-28818	360	12	variation	variation	NOUN
ajst-28818	360	13	trend	trend	NOUN
ajst-28818	360	14	of	of	ADP
ajst-28818	360	15	the	the	DET
ajst-28818	360	16	drill	drill	NOUN
ajst-28818	360	17	-	-	PUNCT
ajst-28818	360	18	string	string	NOUN
ajst-28818	360	19	by	by	ADP
ajst-28818	360	20	calculating	calculate	VERB
ajst-28818	360	21	the	the	DET
ajst-28818	360	22	stick	stick	NOUN
ajst-28818	360	23	-	-	PUNCT
ajst-28818	360	24	time	time	NOUN
ajst-28818	360	25	,	,	PUNCT
ajst-28818	360	26	which	which	PRON
ajst-28818	360	27	proves	prove	VERB
ajst-28818	360	28	the	the	DET
ajst-28818	360	29	validity	validity	NOUN
ajst-28818	360	30	of	of	ADP
ajst-28818	360	31	the	the	DET
ajst-28818	360	32	model	model	NOUN
ajst-28818	360	33	.	.	PUNCT
ajst-28818	361	1	table	table	NOUN
ajst-28818	361	2	3	3	NUM
ajst-28818	361	3	.	.	PUNCT
ajst-28818	361	4	model	model	NOUN
ajst-28818	361	5	calculation	calculation	NOUN
ajst-28818	361	6	parameters	parameter	NOUN
ajst-28818	361	7	item	item	NOUN
ajst-28818	361	8	value	value	NOUN
ajst-28818	361	9	item	item	NOUN
ajst-28818	361	10	value	value	NOUN
ajst-28818	361	11	well	well	INTJ
ajst-28818	361	12	depth	depth	NOUN
ajst-28818	361	13	(	(	PUNCT
ajst-28818	361	14	m	m	NOUN
ajst-28818	361	15	)	)	PUNCT
ajst-28818	361	16	4000/4050/	4000/4050/	NOUN
ajst-28818	361	17	4430/4260	4430/4260	NUM
ajst-28818	362	1	length	length	NOUN
ajst-28818	362	2	of	of	ADP
ajst-28818	362	3	heavy	heavy	ADJ
ajst-28818	362	4	weight	weight	NOUN
ajst-28818	362	5	drill	drill	NOUN
ajst-28818	362	6	pipe	pipe	NOUN
ajst-28818	362	7	(	(	PUNCT
ajst-28818	362	8	hwdp	hwdp	NOUN
ajst-28818	362	9	)	)	PUNCT
ajst-28818	362	10	(	(	PUNCT
ajst-28818	362	11	m	m	NOUN
ajst-28818	362	12	)	)	PUNCT
ajst-28818	362	13	132	132	NUM
ajst-28818	362	14	inner	inner	ADJ
ajst-28818	362	15	diameter	diameter	NOUN
ajst-28818	362	16	of	of	ADP
ajst-28818	362	17	the	the	DET
ajst-28818	362	18	drill	drill	NOUN
ajst-28818	362	19	-	-	PUNCT
ajst-28818	362	20	string	string	NOUN
ajst-28818	362	21	(	(	PUNCT
ajst-28818	362	22	m	m	NOUN
ajst-28818	362	23	)	)	PUNCT
ajst-28818	362	24	0.1186	0.1186	NUM
ajst-28818	362	25	inner	inner	ADJ
ajst-28818	362	26	diameter	diameter	NOUN
ajst-28818	362	27	of	of	ADP
ajst-28818	362	28	hwdp	hwdp	PROPN
ajst-28818	362	29	(	(	PUNCT
ajst-28818	362	30	m	m	NOUN
ajst-28818	362	31	)	)	PUNCT
ajst-28818	362	32	0.0825	0.0825	NUM
ajst-28818	362	33	outer	outer	ADJ
ajst-28818	362	34	diameter	diameter	NOUN
ajst-28818	362	35	of	of	ADP
ajst-28818	362	36	the	the	DET
ajst-28818	362	37	drill	drill	NOUN
ajst-28818	362	38	-	-	PUNCT
ajst-28818	362	39	string	string	NOUN
ajst-28818	362	40	(	(	PUNCT
ajst-28818	362	41	m	m	NOUN
ajst-28818	362	42	)	)	PUNCT
ajst-28818	362	43	0.1397	0.1397	NUM
ajst-28818	362	44	outer	outer	ADJ
ajst-28818	362	45	diameter	diameter	NOUN
ajst-28818	362	46	of	of	ADP
ajst-28818	362	47	hwdp	hwdp	NOUN
ajst-28818	362	48	(	(	PUNCT
ajst-28818	362	49	m	m	NOUN
ajst-28818	362	50	)	)	PUNCT
ajst-28818	362	51	0.1397	0.1397	NUM
ajst-28818	362	52	length	length	NOUN
ajst-28818	362	53	of	of	ADP
ajst-28818	362	54	the	the	DET
ajst-28818	362	55	hba	hba	NOUN
ajst-28818	362	56	(	(	PUNCT
ajst-28818	362	57	m	m	NOUN
ajst-28818	362	58	)	)	PUNCT
ajst-28818	362	59	88.49~159.28	88.49~159.28	VERB
ajst-28818	362	60	wob	wob	X
ajst-28818	363	1	(	(	PUNCT
ajst-28818	363	2	kn	kn	PROPN
ajst-28818	363	3	)	)	PUNCT
ajst-28818	363	4	30~180	30~180	NUM
ajst-28818	363	5	inner	inner	ADJ
ajst-28818	363	6	diameter	diameter	NOUN
ajst-28818	363	7	of	of	ADP
ajst-28818	363	8	the	the	DET
ajst-28818	363	9	hba	hba	NOUN
ajst-28818	363	10	(	(	PUNCT
ajst-28818	363	11	m	m	NOUN
ajst-28818	363	12	)	)	PUNCT
ajst-28818	363	13	0.08573/0.0572	0.08573/0.0572	NOUN
ajst-28818	363	14	ground	ground	NOUN
ajst-28818	363	15	rotary	rotary	NOUN
ajst-28818	363	16	speed	speed	NOUN
ajst-28818	363	17	(	(	PUNCT
ajst-28818	363	18	rad	rad	NOUN
ajst-28818	363	19	/	/	SYM
ajst-28818	363	20	s	s	PART
ajst-28818	363	21	)	)	PUNCT
ajst-28818	363	22	5.23~13.39	5.23~13.39	NUM
ajst-28818	363	23	outer	outer	ADJ
ajst-28818	363	24	diameter	diameter	NOUN
ajst-28818	363	25	of	of	ADP
ajst-28818	363	26	the	the	DET
ajst-28818	363	27	hba	hba	NOUN
ajst-28818	363	28	(	(	PUNCT
ajst-28818	363	29	m	m	NOUN
ajst-28818	363	30	)	)	PUNCT
ajst-28818	363	31	0.2032/0.1651	0.2032/0.1651	NOUN
ajst-28818	363	32	simulation	simulation	NOUN
ajst-28818	363	33	time	time	NOUN
ajst-28818	363	34	(	(	PUNCT
ajst-28818	363	35	s	s	NOUN
ajst-28818	363	36	)	)	PUNCT
ajst-28818	363	37	40	40	NUM
ajst-28818	363	38	3	3	NUM
ajst-28818	363	39	.	.	PUNCT
ajst-28818	363	40	dynamic	dynamic	ADJ
ajst-28818	363	41	analysis	analysis	NOUN
ajst-28818	363	42	tab	tab	NOUN
ajst-28818	363	43	.	.	PUNCT
ajst-28818	363	44	4	4	NUM
ajst-28818	363	45	shows	show	VERB
ajst-28818	363	46	the	the	DET
ajst-28818	363	47	geometric	geometric	ADJ
ajst-28818	363	48	model	model	NOUN
ajst-28818	363	49	and	and	CCONJ
ajst-28818	363	50	material	material	NOUN
ajst-28818	363	51	parameters	parameter	NOUN
ajst-28818	363	52	of	of	ADP
ajst-28818	363	53	the	the	DET
ajst-28818	363	54	drill	drill	NOUN
ajst-28818	363	55	-	-	PUNCT
ajst-28818	363	56	strings	string	NOUN
ajst-28818	363	57	.	.	PUNCT
ajst-28818	364	1	tab	tab	NOUN
ajst-28818	364	2	.	.	PUNCT
ajst-28818	364	3	5	5	NUM
ajst-28818	364	4	shows	show	VERB
ajst-28818	364	5	the	the	DET
ajst-28818	364	6	load	load	NOUN
ajst-28818	364	7	parameters	parameter	NOUN
ajst-28818	364	8	in	in	ADP
ajst-28818	364	9	the	the	DET
ajst-28818	364	10	seawater	seawater	NOUN
ajst-28818	364	11	section	section	NOUN
ajst-28818	364	12	,	,	PUNCT
ajst-28818	364	13	where	where	SCONJ
ajst-28818	364	14	the	the	DET
ajst-28818	364	15	current	current	ADJ
ajst-28818	364	16	velocity	velocity	NOUN
ajst-28818	364	17	and	and	CCONJ
ajst-28818	364	18	wind	wind	NOUN
ajst-28818	364	19	speed	speed	NOUN
ajst-28818	364	20	are	be	AUX
ajst-28818	364	21	set	set	VERB
ajst-28818	364	22	to	to	ADP
ajst-28818	364	23	0.93	0.93	NUM
ajst-28818	364	24	m/s	m/s	PROPN
ajst-28818	364	25	and	and	CCONJ
ajst-28818	364	26	15.43	15.43	NUM
ajst-28818	364	27	m/s	m/s	PROPN
ajst-28818	364	28	respectively	respectively	ADV
ajst-28818	364	29	under	under	ADP
ajst-28818	364	30	the	the	DET
ajst-28818	364	31	normal	normal	ADJ
ajst-28818	364	32	drilling	drilling	NOUN
ajst-28818	364	33	conditions	condition	NOUN
ajst-28818	364	34	in	in	ADP
ajst-28818	364	35	the	the	DET
ajst-28818	364	36	south	south	PROPN
ajst-28818	364	37	china	china	PROPN
ajst-28818	364	38	sea	sea	PROPN
ajst-28818	364	39	(	(	PUNCT
ajst-28818	364	40	mao	mao	NOUN
ajst-28818	364	41	et	et	PROPN
ajst-28818	364	42	al	al	PROPN
ajst-28818	364	43	.	.	PROPN
ajst-28818	364	44	,	,	PUNCT
ajst-28818	364	45	2016	2016	NUM
ajst-28818	364	46	)	)	PUNCT
ajst-28818	364	47	.	.	PUNCT
ajst-28818	365	1	based	base	VERB
ajst-28818	365	2	on	on	ADP
ajst-28818	365	3	field	field	NOUN
ajst-28818	365	4	experience	experience	NOUN
ajst-28818	365	5	(	(	PUNCT
ajst-28818	365	6	wang	wang	PROPN
ajst-28818	365	7	and	and	CCONJ
ajst-28818	365	8	liang	liang	PROPN
ajst-28818	365	9	,	,	PUNCT
ajst-28818	365	10	2013	2013	NUM
ajst-28818	365	11	)	)	PUNCT
ajst-28818	365	12	,	,	PUNCT
ajst-28818	365	13	the	the	DET
ajst-28818	365	14	resistance	resistance	NOUN
ajst-28818	365	15	coefficient	coefficient	NOUN
ajst-28818	365	16	is	be	AUX
ajst-28818	365	17	set	set	VERB
ajst-28818	365	18	to	to	ADP
ajst-28818	365	19	1.2	1.2	NUM
ajst-28818	365	20	from	from	ADP
ajst-28818	365	21	the	the	DET
ajst-28818	365	22	sea	sea	NOUN
ajst-28818	365	23	surface	surface	NOUN
ajst-28818	365	24	to	to	ADP
ajst-28818	365	25	150	150	NUM
ajst-28818	365	26	m	m	NOUN
ajst-28818	365	27	depth	depth	NOUN
ajst-28818	365	28	,	,	PUNCT
ajst-28818	365	29	and	and	CCONJ
ajst-28818	365	30	set	set	VERB
ajst-28818	365	31	to	to	ADP
ajst-28818	365	32	0.7	0.7	NUM
ajst-28818	365	33	from	from	ADP
ajst-28818	365	34	150	150	NUM
ajst-28818	365	35	m	m	NOUN
ajst-28818	365	36	depth	depth	NOUN
ajst-28818	365	37	to	to	ADP
ajst-28818	365	38	the	the	DET
ajst-28818	365	39	mudline	mudline	NOUN
ajst-28818	365	40	,	,	PUNCT
ajst-28818	365	41	and	and	CCONJ
ajst-28818	365	42	the	the	DET
ajst-28818	365	43	inertial	inertial	ADJ
ajst-28818	365	44	force	force	NOUN
ajst-28818	365	45	coefficient	coefficient	NOUN
ajst-28818	365	46	is	be	AUX
ajst-28818	365	47	set	set	VERB
ajst-28818	365	48	to	to	ADP
ajst-28818	365	49	2.0	2.0	NUM
ajst-28818	365	50	in	in	ADP
ajst-28818	365	51	the	the	DET
ajst-28818	365	52	whole	whole	ADJ
ajst-28818	365	53	seawater	seawater	NOUN
ajst-28818	365	54	section	section	NOUN
ajst-28818	365	55	.	.	PUNCT
ajst-28818	366	1	tab	tab	NOUN
ajst-28818	366	2	.	.	PUNCT
ajst-28818	367	1	6	6	NUM
ajst-28818	367	2	shows	show	VERB
ajst-28818	367	3	the	the	DET
ajst-28818	367	4	parameters	parameter	NOUN
ajst-28818	367	5	of	of	ADP
ajst-28818	367	6	wellbore	wellbore	NOUN
ajst-28818	367	7	contact	contact	NOUN
ajst-28818	367	8	load	load	NOUN
ajst-28818	367	9	and	and	CCONJ
ajst-28818	367	10	bit	bit	NOUN
ajst-28818	367	11	-	-	PUNCT
ajst-28818	367	12	rock	rock	NOUN
ajst-28818	367	13	interaction	interaction	NOUN
ajst-28818	367	14	.	.	PUNCT
ajst-28818	368	1	in	in	ADP
ajst-28818	368	2	order	order	NOUN
ajst-28818	368	3	to	to	PART
ajst-28818	368	4	observe	observe	VERB
ajst-28818	368	5	the	the	DET
ajst-28818	368	6	effect	effect	NOUN
ajst-28818	368	7	of	of	ADP
ajst-28818	368	8	the	the	DET
ajst-28818	368	9	lateral	lateral	ADJ
ajst-28818	368	10	movement	movement	NOUN
ajst-28818	368	11	on	on	ADP
ajst-28818	368	12	the	the	DET
ajst-28818	368	13	drill	drill	NOUN
ajst-28818	368	14	-	-	PUNCT
ajst-28818	368	15	string	string	NOUN
ajst-28818	368	16	response	response	NOUN
ajst-28818	368	17	,	,	PUNCT
ajst-28818	368	18	it	it	PRON
ajst-28818	368	19	is	be	AUX
ajst-28818	368	20	assumed	assume	VERB
ajst-28818	368	21	that	that	SCONJ
ajst-28818	368	22	the	the	DET
ajst-28818	368	23	slow	slow	ADJ
ajst-28818	368	24	drift	drift	NOUN
ajst-28818	368	25	motion	motion	NOUN
ajst-28818	368	26	of	of	ADP
ajst-28818	368	27	the	the	DET
ajst-28818	368	28	platform	platform	NOUN
ajst-28818	368	29	and	and	CCONJ
ajst-28818	368	30	the	the	DET
ajst-28818	368	31	direction	direction	NOUN
ajst-28818	368	32	of	of	ADP
ajst-28818	368	33	the	the	DET
ajst-28818	368	34	current	current	ADJ
ajst-28818	368	35	velocity	velocity	NOUN
ajst-28818	368	36	are	be	AUX
ajst-28818	368	37	both	both	PRON
ajst-28818	368	38	in	in	ADP
ajst-28818	368	39	the	the	DET
ajst-28818	368	40	x	x	PUNCT
ajst-28818	368	41	-axis	-axis	PROPN
ajst-28818	368	42	direction	direction	NOUN
ajst-28818	368	43	.	.	PUNCT
ajst-28818	369	1	291	291	NUM
ajst-28818	369	2	figure	figure	NOUN
ajst-28818	369	3	8	8	NUM
ajst-28818	369	4	.	.	PUNCT
ajst-28818	370	1	the	the	DET
ajst-28818	370	2	relation	relation	NOUN
ajst-28818	370	3	curve	curve	NOUN
ajst-28818	370	4	between	between	ADP
ajst-28818	370	5	stick	stick	NOUN
ajst-28818	370	6	-	-	PUNCT
ajst-28818	370	7	slip	slip	NOUN
ajst-28818	370	8	vibration	vibration	NOUN
ajst-28818	370	9	time	time	NOUN
ajst-28818	370	10	and	and	CCONJ
ajst-28818	370	11	mechanical	mechanical	ADJ
ajst-28818	370	12	speed	speed	NOUN
ajst-28818	370	13	of	of	ADP
ajst-28818	370	14	example	example	NOUN
ajst-28818	370	15	well	well	INTJ
ajst-28818	370	16	table	table	NOUN
ajst-28818	370	17	4	4	NUM
ajst-28818	370	18	.	.	PUNCT
ajst-28818	371	1	parameters	parameter	NOUN
ajst-28818	371	2	of	of	ADP
ajst-28818	371	3	drill	drill	NOUN
ajst-28818	371	4	-	-	PUNCT
ajst-28818	371	5	string	string	NOUN
ajst-28818	371	6	system	system	NOUN
ajst-28818	371	7	property	property	NOUN
ajst-28818	371	8	value	value	NOUN
ajst-28818	371	9	unit	unit	NOUN
ajst-28818	371	10	outer	outer	ADJ
ajst-28818	371	11	diameter	diameter	NOUN
ajst-28818	371	12	of	of	ADP
ajst-28818	371	13	the	the	DET
ajst-28818	371	14	drill	drill	NOUN
ajst-28818	371	15	-	-	PUNCT
ajst-28818	371	16	string	string	NOUN
ajst-28818	371	17	0.1270	0.1270	NUM
ajst-28818	371	18	m	m	NOUN
ajst-28818	371	19	inner	inner	ADJ
ajst-28818	371	20	diameter	diameter	NOUN
ajst-28818	371	21	of	of	ADP
ajst-28818	371	22	the	the	DET
ajst-28818	371	23	drill	drill	NOUN
ajst-28818	371	24	-	-	PUNCT
ajst-28818	371	25	string	string	NOUN
ajst-28818	371	26	0.1086	0.1086	NUM
ajst-28818	371	27	m	m	NOUN
ajst-28818	371	28	length	length	NOUN
ajst-28818	371	29	of	of	ADP
ajst-28818	371	30	the	the	DET
ajst-28818	371	31	drill	drill	NOUN
ajst-28818	371	32	-	-	PUNCT
ajst-28818	371	33	string	string	NOUN
ajst-28818	371	34	2500	2500	NUM
ajst-28818	371	35	m	m	NOUN
ajst-28818	371	36	outer	outer	ADJ
ajst-28818	371	37	diameter	diameter	NOUN
ajst-28818	371	38	of	of	ADP
ajst-28818	371	39	the	the	DET
ajst-28818	371	40	drill	drill	NOUN
ajst-28818	371	41	collar	collar	NOUN
ajst-28818	371	42	0.2286	0.2286	NUM
ajst-28818	371	43	m	m	PROPN
ajst-28818	371	44	inner	inner	ADJ
ajst-28818	371	45	diameter	diameter	NOUN
ajst-28818	371	46	of	of	ADP
ajst-28818	371	47	the	the	DET
ajst-28818	371	48	drill	drill	NOUN
ajst-28818	371	49	collar	collar	VERB
ajst-28818	371	50	0.0762	0.0762	NUM
ajst-28818	371	51	m	m	NOUN
ajst-28818	371	52	length	length	NOUN
ajst-28818	371	53	of	of	ADP
ajst-28818	371	54	the	the	DET
ajst-28818	371	55	drill	drill	NOUN
ajst-28818	371	56	collar	collar	NOUN
ajst-28818	371	57	150	150	NUM
ajst-28818	371	58	m	m	NOUN
ajst-28818	371	59	density	density	NOUN
ajst-28818	371	60	of	of	ADP
ajst-28818	371	61	material	material	NOUN
ajst-28818	371	62	7850	7850	NUM
ajst-28818	371	63	kg	kg	NOUN
ajst-28818	371	64	/	/	SYM
ajst-28818	371	65	m3	m3	PROPN
ajst-28818	371	66	young	young	PROPN
ajst-28818	371	67	's	's	PART
ajst-28818	371	68	modulus	modulus	NOUN
ajst-28818	371	69	of	of	ADP
ajst-28818	371	70	material	material	NOUN
ajst-28818	371	71	210	210	NUM
ajst-28818	371	72	gpa	gpa	PROPN
ajst-28818	371	73	shear	shear	NOUN
ajst-28818	371	74	modulus	modulus	NOUN
ajst-28818	371	75	of	of	ADP
ajst-28818	371	76	material	material	NOUN
ajst-28818	371	77	79.6	79.6	NUM
ajst-28818	371	78	gpa	gpa	PROPN
ajst-28818	371	79	bit	bit	NOUN
ajst-28818	371	80	radius	radius	NOUN
ajst-28818	371	81	0.1555	0.1555	NUM
ajst-28818	371	82	m	m	NOUN
ajst-28818	371	83	rotary	rotary	ADJ
ajst-28818	371	84	speed	speed	NOUN
ajst-28818	371	85	5	5	NUM
ajst-28818	371	86	rad	rad	PROPN
ajst-28818	371	87	/	/	SYM
ajst-28818	371	88	s	s	PART
ajst-28818	371	89	piston	piston	NOUN
ajst-28818	371	90	cross	cross	ADJ
ajst-28818	371	91	-	-	ADJ
ajst-28818	371	92	sectional	sectional	ADJ
ajst-28818	371	93	area	area	NOUN
ajst-28818	371	94	0.24	0.24	NUM
ajst-28818	371	95	m2	m2	PROPN
ajst-28818	371	96	initial	initial	ADJ
ajst-28818	371	97	pressure	pressure	NOUN
ajst-28818	371	98	3.25	3.25	NUM
ajst-28818	371	99	mpa	mpa	NOUN
ajst-28818	371	100	total	total	NOUN
ajst-28818	371	101	volume	volume	NOUN
ajst-28818	371	102	of	of	ADP
ajst-28818	371	103	compressed	compressed	ADJ
ajst-28818	371	104	air	air	NOUN
ajst-28818	371	105	10.5	10.5	NUM
ajst-28818	371	106	m3	m3	PROPN
ajst-28818	371	107	specific	specific	ADJ
ajst-28818	371	108	heat	heat	NOUN
ajst-28818	371	109	ratio	ratio	NOUN
ajst-28818	371	110	of	of	ADP
ajst-28818	371	111	air	air	NOUN
ajst-28818	371	112	.	.	PUNCT
ajst-28818	372	1	1.2	1.2	NUM
ajst-28818	372	2	zero	zero	NUM
ajst-28818	372	3	dimension	dimension	NOUN
ajst-28818	372	4	table	table	NOUN
ajst-28818	372	5	5	5	NUM
ajst-28818	372	6	.	.	PUNCT
ajst-28818	372	7	load	load	NOUN
ajst-28818	372	8	parameters	parameter	NOUN
ajst-28818	372	9	of	of	ADP
ajst-28818	372	10	seawater	seawater	NOUN
ajst-28818	372	11	section	section	NOUN
ajst-28818	372	12	property	property	NOUN
ajst-28818	372	13	value	value	NOUN
ajst-28818	372	14	unit	unit	NOUN
ajst-28818	372	15	depth	depth	NOUN
ajst-28818	372	16	of	of	ADP
ajst-28818	372	17	seawater	seawater	NOUN
ajst-28818	372	18	1200	1200	NUM
ajst-28818	372	19	m	m	NOUN
ajst-28818	372	20	density	density	NOUN
ajst-28818	372	21	of	of	ADP
ajst-28818	372	22	seawater	seawater	NOUN
ajst-28818	372	23	1025	1025	NUM
ajst-28818	372	24	kg	kg	NOUN
ajst-28818	372	25	/	/	SYM
ajst-28818	372	26	m3	m3	PROPN
ajst-28818	372	27	wave	wave	NOUN
ajst-28818	372	28	height	height	NOUN
ajst-28818	372	29	6	6	NUM
ajst-28818	372	30	m	m	NOUN
ajst-28818	372	31	wave	wave	NOUN
ajst-28818	372	32	length	length	NOUN
ajst-28818	372	33	10.2	10.2	NUM
ajst-28818	372	34	m	m	NOUN
ajst-28818	372	35	wave	wave	NOUN
ajst-28818	372	36	period	period	NOUN
ajst-28818	372	37	11.2	11.2	NUM
ajst-28818	372	38	s	s	NOUN
ajst-28818	372	39	maximum	maximum	ADJ
ajst-28818	372	40	measured	measure	VERB
ajst-28818	372	41	wind	wind	NOUN
ajst-28818	372	42	speed	speed	NOUN
ajst-28818	372	43	15.43	15.43	NUM
ajst-28818	372	44	m	m	NOUN
ajst-28818	372	45	/	/	SYM
ajst-28818	372	46	s	s	PART
ajst-28818	372	47	maximum	maximum	ADJ
ajst-28818	372	48	surface	surface	NOUN
ajst-28818	372	49	current	current	ADJ
ajst-28818	372	50	speed	speed	NOUN
ajst-28818	372	51	0.93	0.93	NUM
ajst-28818	372	52	m	m	NOUN
ajst-28818	372	53	/	/	SYM
ajst-28818	372	54	s	s	PART
ajst-28818	372	55	friction	friction	NOUN
ajst-28818	372	56	depth	depth	NOUN
ajst-28818	372	57	200	200	NUM
ajst-28818	372	58	m	m	NOUN
ajst-28818	372	59	wind	wind	NOUN
ajst-28818	372	60	speed	speed	NOUN
ajst-28818	372	61	factor	factor	NOUN
ajst-28818	372	62	0.03	0.03	NUM
ajst-28818	372	63	zero	zero	NUM
ajst-28818	372	64	dimension	dimension	NOUN
ajst-28818	372	65	drag	drag	NOUN
ajst-28818	372	66	coefficient	coefficient	NOUN
ajst-28818	372	67	cd	cd	PROPN
ajst-28818	372	68	1.2(between	1.2(between	NUM
ajst-28818	372	69	water	water	NOUN
ajst-28818	372	70	surface	surface	NOUN
ajst-28818	372	71	and	and	CCONJ
ajst-28818	372	72	150	150	NUM
ajst-28818	372	73	m	m	NOUN
ajst-28818	372	74	)	)	PUNCT
ajst-28818	373	1	0.7(between	0.7(between	NUM
ajst-28818	373	2	150	150	NUM
ajst-28818	373	3	m	m	NOUN
ajst-28818	373	4	and	and	CCONJ
ajst-28818	373	5	seabed	seabe	VERB
ajst-28818	373	6	)	)	PUNCT
ajst-28818	373	7	zero	zero	NUM
ajst-28818	373	8	dimension	dimension	NOUN
ajst-28818	373	9	inertia	inertia	NOUN
ajst-28818	373	10	cofficient	cofficient	NOUN
ajst-28818	373	11	cm	cm	NUM
ajst-28818	373	12	2.0(at	2.0(at	NUM
ajst-28818	373	13	all	all	DET
ajst-28818	373	14	depths	depth	NOUN
ajst-28818	373	15	)	)	PUNCT
ajst-28818	373	16	zero	zero	NUM
ajst-28818	373	17	dimension	dimension	NOUN
ajst-28818	373	18	292	292	NUM
ajst-28818	373	19	table	table	NOUN
ajst-28818	373	20	6	6	NUM
ajst-28818	373	21	.	.	PUNCT
ajst-28818	374	1	load	load	NOUN
ajst-28818	374	2	parameters	parameter	NOUN
ajst-28818	374	3	of	of	ADP
ajst-28818	374	4	stratigraphic	stratigraphic	ADJ
ajst-28818	374	5	section	section	NOUN
ajst-28818	374	6	property	property	NOUN
ajst-28818	374	7	value	value	NOUN
ajst-28818	374	8	unit	unit	NOUN
ajst-28818	374	9	static	static	ADJ
ajst-28818	374	10	friction	friction	NOUN
ajst-28818	374	11	coefficient	coefficient	NOUN
ajst-28818	374	12	0.8	0.8	NUM
ajst-28818	374	13	zero	zero	NUM
ajst-28818	374	14	dimension	dimension	NOUN
ajst-28818	374	15	kinetic	kinetic	NOUN
ajst-28818	374	16	(	(	PUNCT
ajst-28818	374	17	coulomb	coulomb	NOUN
ajst-28818	374	18	)	)	PUNCT
ajst-28818	374	19	friction	friction	NOUN
ajst-28818	374	20	coefficient	coefficient	NOUN
ajst-28818	374	21	0.5	0.5	NUM
ajst-28818	374	22	zero	zero	NUM
ajst-28818	374	23	dimension	dimension	NOUN
ajst-28818	374	24	decay	decay	NOUN
ajst-28818	374	25	coefficient	coefficient	NOUN
ajst-28818	374	26	0.9	0.9	NUM
ajst-28818	374	27	zero	zero	NUM
ajst-28818	374	28	dimension	dimension	NOUN
ajst-28818	374	29	threshold	threshold	NOUN
ajst-28818	374	30	velocity	velocity	NOUN
ajst-28818	374	31	0.000001	0.000001	NUM
ajst-28818	374	32	m	m	PROPN
ajst-28818	374	33	/	/	SYM
ajst-28818	374	34	s	s	PART
ajst-28818	374	35	drill	drill	NOUN
ajst-28818	374	36	-	-	PUNCT
ajst-28818	374	37	string	string	NOUN
ajst-28818	374	38	wall	wall	PROPN
ajst-28818	374	39	friction	friction	PROPN
ajst-28818	374	40	coefficient	coefficient	VERB
ajst-28818	374	41	0.3	0.3	NUM
ajst-28818	374	42	zero	zero	NUM
ajst-28818	374	43	dimension	dimension	NOUN
ajst-28818	374	44	bit	bit	NOUN
ajst-28818	374	45	pressure	pressure	NOUN
ajst-28818	374	46	80	80	NUM
ajst-28818	374	47	kn	kn	PROPN
ajst-28818	374	48	3.1	3.1	NUM
ajst-28818	374	49	.	.	PUNCT
ajst-28818	375	1	comparison	comparison	NOUN
ajst-28818	375	2	of	of	ADP
ajst-28818	375	3	heave	heave	ADJ
ajst-28818	375	4	compensation	compensation	NOUN
ajst-28818	375	5	with	with	ADP
ajst-28818	375	6	and	and	CCONJ
ajst-28818	375	7	without	without	ADP
ajst-28818	375	8	heave	heave	NOUN
ajst-28818	375	9	compensation	compensation	NOUN
ajst-28818	375	10	the	the	DET
ajst-28818	375	11	slow	slow	ADJ
ajst-28818	375	12	drift	drift	NOUN
ajst-28818	375	13	motion	motion	NOUN
ajst-28818	375	14	of	of	ADP
ajst-28818	375	15	the	the	DET
ajst-28818	375	16	platform	platform	NOUN
ajst-28818	375	17	has	have	VERB
ajst-28818	375	18	an	an	DET
ajst-28818	375	19	average	average	ADJ
ajst-28818	375	20	drift	drift	NOUN
ajst-28818	375	21	of	of	ADP
ajst-28818	375	22	15	15	NUM
ajst-28818	375	23	m	m	NOUN
ajst-28818	375	24	,	,	PUNCT
ajst-28818	375	25	an	an	DET
ajst-28818	375	26	amplitude	amplitude	NOUN
ajst-28818	375	27	of	of	ADP
ajst-28818	375	28	10	10	NUM
ajst-28818	375	29	m	m	NOUN
ajst-28818	375	30	,	,	PUNCT
ajst-28818	375	31	and	and	CCONJ
ajst-28818	375	32	a	a	DET
ajst-28818	375	33	period	period	NOUN
ajst-28818	375	34	of	of	ADP
ajst-28818	375	35	80	80	NUM
ajst-28818	375	36	s.	s.	PROPN
ajst-28818	375	37	due	due	ADP
ajst-28818	375	38	to	to	ADP
ajst-28818	375	39	the	the	DET
ajst-28818	375	40	initialization	initialization	NOUN
ajst-28818	375	41	of	of	ADP
ajst-28818	375	42	the	the	DET
ajst-28818	375	43	static	static	ADJ
ajst-28818	375	44	method	method	NOUN
ajst-28818	375	45	,	,	PUNCT
ajst-28818	375	46	the	the	DET
ajst-28818	375	47	drill	drill	NOUN
ajst-28818	375	48	-	-	PUNCT
ajst-28818	375	49	string	string	NOUN
ajst-28818	375	50	was	be	AUX
ajst-28818	375	51	in	in	ADP
ajst-28818	375	52	a	a	DET
ajst-28818	375	53	static	static	ADJ
ajst-28818	375	54	state	state	NOUN
ajst-28818	375	55	in	in	ADP
ajst-28818	375	56	the	the	DET
ajst-28818	375	57	seawater	seawater	NOUN
ajst-28818	375	58	section	section	NOUN
ajst-28818	375	59	in	in	ADP
ajst-28818	375	60	the	the	DET
ajst-28818	375	61	initial	initial	ADJ
ajst-28818	375	62	state	state	NOUN
ajst-28818	375	63	,	,	PUNCT
ajst-28818	375	64	so	so	CCONJ
ajst-28818	375	65	the	the	DET
ajst-28818	375	66	phase	phase	NOUN
ajst-28818	375	67	angle	angle	NOUN
ajst-28818	375	68	of	of	ADP
ajst-28818	375	69	the	the	DET
ajst-28818	375	70	slow	slow	ADJ
ajst-28818	375	71	drift	drift	NOUN
ajst-28818	375	72	motion	motion	NOUN
ajst-28818	375	73	of	of	ADP
ajst-28818	375	74	the	the	DET
ajst-28818	375	75	platform	platform	NOUN
ajst-28818	375	76	is	be	AUX
ajst-28818	375	77	set	set	VERB
ajst-28818	375	78	to	to	ADP
ajst-28818	375	79	/	/	SYM
ajst-28818	375	80	2	2	PROPN
ajst-28818	375	81	,	,	PUNCT
ajst-28818	375	82	making	make	VERB
ajst-28818	375	83	the	the	DET
ajst-28818	375	84	lateral	lateral	ADJ
ajst-28818	375	85	velocity	velocity	NOUN
ajst-28818	375	86	of	of	ADP
ajst-28818	375	87	the	the	DET
ajst-28818	375	88	platform	platform	NOUN
ajst-28818	375	89	in	in	ADP
ajst-28818	375	90	the	the	DET
ajst-28818	375	91	initial	initial	ADJ
ajst-28818	375	92	state	state	NOUN
ajst-28818	375	93	also	also	ADV
ajst-28818	375	94	zero	zero	NUM
ajst-28818	375	95	.	.	PUNCT
ajst-28818	376	1	the	the	DET
ajst-28818	376	2	plateau	plateau	PROPN
ajst-28818	376	3	heave	heave	PROPN
ajst-28818	376	4	has	have	VERB
ajst-28818	376	5	an	an	DET
ajst-28818	376	6	amplitude	amplitude	NOUN
ajst-28818	376	7	of	of	ADP
ajst-28818	376	8	0.3	0.3	NUM
ajst-28818	376	9	m	m	NOUN
ajst-28818	376	10	and	and	CCONJ
ajst-28818	376	11	a	a	DET
ajst-28818	376	12	period	period	NOUN
ajst-28818	376	13	of	of	ADP
ajst-28818	376	14	16	16	NUM
ajst-28818	376	15	s.	s.	PROPN
ajst-28818	376	16	fig	fig	PROPN
ajst-28818	376	17	.	.	PUNCT
ajst-28818	377	1	9	9	NUM
ajst-28818	377	2	shows	show	VERB
ajst-28818	377	3	a	a	DET
ajst-28818	377	4	comparison	comparison	NOUN
ajst-28818	377	5	of	of	ADP
ajst-28818	377	6	the	the	DET
ajst-28818	377	7	time	time	NOUN
ajst-28818	377	8	-	-	PUNCT
ajst-28818	377	9	domain	domain	NOUN
ajst-28818	377	10	response	response	NOUN
ajst-28818	377	11	of	of	ADP
ajst-28818	377	12	the	the	DET
ajst-28818	377	13	drill	drill	NOUN
ajst-28818	377	14	-	-	PUNCT
ajst-28818	377	15	string	string	NOUN
ajst-28818	377	16	with	with	ADP
ajst-28818	377	17	and	and	CCONJ
ajst-28818	377	18	without	without	ADP
ajst-28818	377	19	the	the	DET
ajst-28818	377	20	heave	heave	PROPN
ajst-28818	377	21	compensation	compensation	NOUN
ajst-28818	377	22	device	device	NOUN
ajst-28818	377	23	.	.	PUNCT
ajst-28818	378	1	fig	fig	NOUN
ajst-28818	378	2	.	.	PUNCT
ajst-28818	379	1	9	9	NUM
ajst-28818	379	2	(	(	PUNCT
ajst-28818	379	3	a	a	NOUN
ajst-28818	379	4	)	)	PUNCT
ajst-28818	379	5	shows	show	VERB
ajst-28818	379	6	the	the	DET
ajst-28818	379	7	axial	axial	ADJ
ajst-28818	379	8	displacement	displacement	ADJ
ajst-28818	379	9	curve	curve	NOUN
ajst-28818	379	10	of	of	ADP
ajst-28818	379	11	the	the	DET
ajst-28818	379	12	top	top	NOUN
ajst-28818	379	13	of	of	ADP
ajst-28818	379	14	the	the	DET
ajst-28818	379	15	drill	drill	NOUN
ajst-28818	379	16	-	-	PUNCT
ajst-28818	379	17	string	string	NOUN
ajst-28818	379	18	,	,	PUNCT
ajst-28818	379	19	which	which	PRON
ajst-28818	379	20	is	be	AUX
ajst-28818	379	21	consistent	consistent	ADJ
ajst-28818	379	22	with	with	ADP
ajst-28818	379	23	the	the	DET
ajst-28818	379	24	heave	heave	ADJ
ajst-28818	379	25	motion	motion	NOUN
ajst-28818	379	26	of	of	ADP
ajst-28818	379	27	the	the	DET
ajst-28818	379	28	platform	platform	NOUN
ajst-28818	379	29	without	without	ADP
ajst-28818	379	30	the	the	DET
ajst-28818	379	31	heave	heave	PROPN
ajst-28818	379	32	compensation	compensation	NOUN
ajst-28818	379	33	device	device	NOUN
ajst-28818	379	34	.	.	PUNCT
ajst-28818	380	1	when	when	SCONJ
ajst-28818	380	2	the	the	DET
ajst-28818	380	3	heave	heave	PROPN
ajst-28818	380	4	compensation	compensation	NOUN
ajst-28818	380	5	device	device	NOUN
ajst-28818	380	6	is	be	AUX
ajst-28818	380	7	present	present	ADJ
ajst-28818	380	8	,	,	PUNCT
ajst-28818	380	9	the	the	DET
ajst-28818	380	10	lateral	lateral	ADJ
ajst-28818	380	11	slow	slow	ADJ
ajst-28818	380	12	drift	drift	NOUN
ajst-28818	380	13	motion	motion	NOUN
ajst-28818	380	14	of	of	ADP
ajst-28818	380	15	the	the	DET
ajst-28818	380	16	platform	platform	NOUN
ajst-28818	380	17	plays	play	VERB
ajst-28818	380	18	a	a	DET
ajst-28818	380	19	major	major	ADJ
ajst-28818	380	20	role	role	NOUN
ajst-28818	380	21	.	.	PUNCT
ajst-28818	381	1	under	under	ADP
ajst-28818	381	2	the	the	DET
ajst-28818	381	3	lateral	lateral	ADJ
ajst-28818	381	4	drag	drag	NOUN
ajst-28818	381	5	of	of	ADP
ajst-28818	381	6	the	the	DET
ajst-28818	381	7	platform	platform	NOUN
ajst-28818	381	8	,	,	PUNCT
ajst-28818	381	9	the	the	DET
ajst-28818	381	10	axial	axial	ADJ
ajst-28818	381	11	displacement	displacement	NOUN
ajst-28818	381	12	of	of	ADP
ajst-28818	381	13	the	the	DET
ajst-28818	381	14	drill	drill	NOUN
ajst-28818	381	15	-	-	PUNCT
ajst-28818	381	16	string	string	NOUN
ajst-28818	381	17	first	first	ADJ
ajst-28818	381	18	increases	increase	NOUN
ajst-28818	381	19	and	and	CCONJ
ajst-28818	381	20	then	then	ADV
ajst-28818	381	21	decreases	decrease	VERB
ajst-28818	381	22	,	,	PUNCT
ajst-28818	381	23	and	and	CCONJ
ajst-28818	381	24	the	the	DET
ajst-28818	381	25	influence	influence	NOUN
ajst-28818	381	26	of	of	ADP
ajst-28818	381	27	the	the	DET
ajst-28818	381	28	heave	heave	ADJ
ajst-28818	381	29	motion	motion	NOUN
ajst-28818	381	30	is	be	AUX
ajst-28818	381	31	effectively	effectively	ADV
ajst-28818	381	32	weakened	weaken	VERB
ajst-28818	381	33	.	.	PUNCT
ajst-28818	382	1	fig	fig	NOUN
ajst-28818	382	2	.	.	PUNCT
ajst-28818	383	1	9	9	NUM
ajst-28818	383	2	(	(	PUNCT
ajst-28818	383	3	b	b	NOUN
ajst-28818	383	4	)	)	PUNCT
ajst-28818	383	5	shows	show	VERB
ajst-28818	383	6	the	the	DET
ajst-28818	383	7	response	response	NOUN
ajst-28818	383	8	curve	curve	NOUN
ajst-28818	383	9	of	of	ADP
ajst-28818	383	10	wob	wob	NOUN
ajst-28818	383	11	.	.	PUNCT
ajst-28818	384	1	it	it	PRON
ajst-28818	384	2	can	can	AUX
ajst-28818	384	3	be	be	AUX
ajst-28818	384	4	found	find	VERB
ajst-28818	384	5	that	that	SCONJ
ajst-28818	384	6	wob	wob	NOUN
ajst-28818	384	7	fluctuates	fluctuate	VERB
ajst-28818	384	8	violently	violently	ADV
ajst-28818	384	9	and	and	CCONJ
ajst-28818	384	10	even	even	ADV
ajst-28818	384	11	bit	bit	NOUN
ajst-28818	384	12	jumping	jump	VERB
ajst-28818	384	13	(	(	PUNCT
ajst-28818	384	14	wob=0	wob=0	PROPN
ajst-28818	384	15	)	)	PUNCT
ajst-28818	384	16	occurs	occur	VERB
ajst-28818	384	17	when	when	SCONJ
ajst-28818	384	18	there	there	PRON
ajst-28818	384	19	is	be	VERB
ajst-28818	384	20	no	no	DET
ajst-28818	384	21	heave	heave	ADJ
ajst-28818	384	22	compensation	compensation	NOUN
ajst-28818	384	23	device	device	NOUN
ajst-28818	384	24	.	.	PUNCT
ajst-28818	385	1	it	it	PRON
ajst-28818	385	2	can	can	AUX
ajst-28818	385	3	also	also	ADV
ajst-28818	385	4	be	be	AUX
ajst-28818	385	5	seen	see	VERB
ajst-28818	385	6	that	that	SCONJ
ajst-28818	385	7	the	the	DET
ajst-28818	385	8	heave	heave	PROPN
ajst-28818	385	9	motion	motion	NOUN
ajst-28818	385	10	has	have	VERB
ajst-28818	385	11	a	a	DET
ajst-28818	385	12	large	large	ADJ
ajst-28818	385	13	impact	impact	NOUN
ajst-28818	385	14	on	on	ADP
ajst-28818	385	15	the	the	DET
ajst-28818	385	16	wob	wob	NOUN
ajst-28818	385	17	,	,	PUNCT
ajst-28818	385	18	while	while	SCONJ
ajst-28818	385	19	the	the	DET
ajst-28818	385	20	wob	wob	NOUN
ajst-28818	385	21	with	with	ADP
ajst-28818	385	22	heave	heave	NOUN
ajst-28818	385	23	compensation	compensation	NOUN
ajst-28818	385	24	device	device	NOUN
ajst-28818	385	25	is	be	AUX
ajst-28818	385	26	relatively	relatively	ADV
ajst-28818	385	27	stable	stable	ADJ
ajst-28818	385	28	.	.	PUNCT
ajst-28818	386	1	fig	fig	NOUN
ajst-28818	386	2	.	.	PUNCT
ajst-28818	387	1	9	9	NUM
ajst-28818	387	2	(	(	PUNCT
ajst-28818	387	3	c	c	NOUN
ajst-28818	387	4	)	)	PUNCT
ajst-28818	387	5	shows	show	VERB
ajst-28818	387	6	the	the	DET
ajst-28818	387	7	lateral	lateral	ADJ
ajst-28818	387	8	displacement	displacement	ADJ
ajst-28818	387	9	response	response	NOUN
ajst-28818	387	10	at	at	ADP
ajst-28818	387	11	the	the	DET
ajst-28818	387	12	midpoint	midpoint	NOUN
ajst-28818	387	13	of	of	ADP
ajst-28818	387	14	the	the	DET
ajst-28818	387	15	drill	drill	NOUN
ajst-28818	387	16	-	-	PUNCT
ajst-28818	387	17	string	string	NOUN
ajst-28818	387	18	in	in	ADP
ajst-28818	387	19	the	the	DET
ajst-28818	387	20	seawater	seawater	NOUN
ajst-28818	387	21	section	section	NOUN
ajst-28818	387	22	(	(	PUNCT
ajst-28818	387	23	depth	depth	NOUN
ajst-28818	387	24	600	600	NUM
ajst-28818	387	25	m	m	NOUN
ajst-28818	387	26	)	)	PUNCT
ajst-28818	387	27	,	,	PUNCT
ajst-28818	387	28	which	which	PRON
ajst-28818	387	29	is	be	AUX
ajst-28818	387	30	significantly	significantly	ADV
ajst-28818	387	31	different	different	ADJ
ajst-28818	387	32	in	in	ADP
ajst-28818	387	33	two	two	NUM
ajst-28818	387	34	cases	case	NOUN
ajst-28818	387	35	.	.	PUNCT
ajst-28818	388	1	in	in	ADP
ajst-28818	388	2	addition	addition	NOUN
ajst-28818	388	3	to	to	ADP
ajst-28818	388	4	the	the	DET
ajst-28818	388	5	lateral	lateral	ADJ
ajst-28818	388	6	movement	movement	NOUN
ajst-28818	388	7	of	of	ADP
ajst-28818	388	8	the	the	DET
ajst-28818	388	9	platform	platform	NOUN
ajst-28818	388	10	,	,	PUNCT
ajst-28818	388	11	the	the	DET
ajst-28818	388	12	lateral	lateral	ADJ
ajst-28818	388	13	response	response	NOUN
ajst-28818	388	14	of	of	ADP
ajst-28818	388	15	the	the	DET
ajst-28818	388	16	drill	drill	NOUN
ajst-28818	388	17	-	-	PUNCT
ajst-28818	388	18	string	string	NOUN
ajst-28818	388	19	without	without	ADP
ajst-28818	388	20	heave	heave	NOUN
ajst-28818	388	21	compensation	compensation	NOUN
ajst-28818	388	22	device	device	NOUN
ajst-28818	388	23	fluctuates	fluctuate	NOUN
ajst-28818	388	24	obviously	obviously	ADV
ajst-28818	388	25	under	under	ADP
ajst-28818	388	26	the	the	DET
ajst-28818	388	27	influence	influence	NOUN
ajst-28818	388	28	of	of	ADP
ajst-28818	388	29	heave	heave	ADJ
ajst-28818	388	30	motion	motion	NOUN
ajst-28818	388	31	.	.	PUNCT
ajst-28818	389	1	this	this	PRON
ajst-28818	389	2	is	be	AUX
ajst-28818	389	3	due	due	ADJ
ajst-28818	389	4	to	to	ADP
ajst-28818	389	5	the	the	DET
ajst-28818	389	6	fact	fact	NOUN
ajst-28818	389	7	that	that	SCONJ
ajst-28818	389	8	in	in	ADP
ajst-28818	389	9	the	the	DET
ajst-28818	389	10	absence	absence	NOUN
ajst-28818	389	11	of	of	ADP
ajst-28818	389	12	heave	heave	PROPN
ajst-28818	389	13	compensation	compensation	NOUN
ajst-28818	389	14	,	,	PUNCT
ajst-28818	389	15	the	the	DET
ajst-28818	389	16	axial	axial	ADJ
ajst-28818	389	17	tension	tension	NOUN
ajst-28818	389	18	of	of	ADP
ajst-28818	389	19	the	the	DET
ajst-28818	389	20	drill	drill	NOUN
ajst-28818	389	21	-	-	PUNCT
ajst-28818	389	22	string	string	NOUN
ajst-28818	389	23	fluctuates	fluctuate	NOUN
ajst-28818	389	24	dramatically	dramatically	ADV
ajst-28818	389	25	,	,	PUNCT
ajst-28818	389	26	resulting	result	VERB
ajst-28818	389	27	in	in	ADP
ajst-28818	389	28	a	a	DET
ajst-28818	389	29	change	change	NOUN
ajst-28818	389	30	in	in	ADP
ajst-28818	389	31	the	the	DET
ajst-28818	389	32	lateral	lateral	ADJ
ajst-28818	389	33	stiffness	stiffness	NOUN
ajst-28818	389	34	,	,	PUNCT
ajst-28818	389	35	which	which	PRON
ajst-28818	389	36	fluctuates	fluctuate	VERB
ajst-28818	389	37	in	in	ADP
ajst-28818	389	38	response	response	NOUN
ajst-28818	389	39	to	to	ADP
ajst-28818	389	40	the	the	DET
ajst-28818	389	41	seawater	seawater	NOUN
ajst-28818	389	42	load	load	NOUN
ajst-28818	389	43	.	.	PUNCT
ajst-28818	390	1	fig	fig	NOUN
ajst-28818	390	2	.	.	PUNCT
ajst-28818	391	1	9	9	NUM
ajst-28818	391	2	(	(	PUNCT
ajst-28818	391	3	d	d	NOUN
ajst-28818	391	4	)	)	PUNCT
ajst-28818	391	5	shows	show	VERB
ajst-28818	391	6	the	the	DET
ajst-28818	391	7	curve	curve	NOUN
ajst-28818	391	8	of	of	ADP
ajst-28818	391	9	bit	bit	NOUN
ajst-28818	391	10	speed	speed	NOUN
ajst-28818	391	11	.	.	PUNCT
ajst-28818	392	1	it	it	PRON
ajst-28818	392	2	can	can	AUX
ajst-28818	392	3	be	be	AUX
ajst-28818	392	4	found	find	VERB
ajst-28818	392	5	that	that	SCONJ
ajst-28818	392	6	without	without	ADP
ajst-28818	392	7	heave	heave	NOUN
ajst-28818	392	8	compensation	compensation	NOUN
ajst-28818	392	9	device	device	NOUN
ajst-28818	392	10	,	,	PUNCT
ajst-28818	392	11	the	the	DET
ajst-28818	392	12	bit	bit	NOUN
ajst-28818	392	13	speed	speed	NOUN
ajst-28818	392	14	fluctuates	fluctuate	VERB
ajst-28818	392	15	more	more	ADV
ajst-28818	392	16	violently	violently	ADV
ajst-28818	392	17	,	,	PUNCT
ajst-28818	392	18	and	and	CCONJ
ajst-28818	392	19	its	its	PRON
ajst-28818	392	20	maximum	maximum	ADJ
ajst-28818	392	21	rotation	rotation	NOUN
ajst-28818	392	22	speed	speed	NOUN
ajst-28818	392	23	even	even	ADV
ajst-28818	392	24	reaches	reach	VERB
ajst-28818	392	25	6	6	NUM
ajst-28818	392	26	times	time	NOUN
ajst-28818	392	27	of	of	ADP
ajst-28818	392	28	the	the	DET
ajst-28818	392	29	platform	platform	NOUN
ajst-28818	392	30	turntable	turntable	ADJ
ajst-28818	392	31	speed	speed	NOUN
ajst-28818	392	32	,	,	PUNCT
ajst-28818	392	33	and	and	CCONJ
ajst-28818	392	34	obvious	obvious	ADJ
ajst-28818	392	35	bit	bit	NOUN
ajst-28818	392	36	inversion	inversion	NOUN
ajst-28818	392	37	occurs	occur	VERB
ajst-28818	392	38	,	,	PUNCT
ajst-28818	392	39	which	which	PRON
ajst-28818	392	40	is	be	AUX
ajst-28818	392	41	easy	easy	ADJ
ajst-28818	392	42	to	to	PART
ajst-28818	392	43	cause	cause	VERB
ajst-28818	392	44	damage	damage	NOUN
ajst-28818	392	45	to	to	ADP
ajst-28818	392	46	the	the	DET
ajst-28818	392	47	bit	bit	NOUN
ajst-28818	392	48	.	.	PUNCT
ajst-28818	393	1	therefore	therefore	ADV
ajst-28818	393	2	,	,	PUNCT
ajst-28818	393	3	for	for	ADP
ajst-28818	393	4	riserless	riserless	NOUN
ajst-28818	393	5	drilling	drilling	NOUN
ajst-28818	393	6	,	,	PUNCT
ajst-28818	393	7	heave	heave	VERB
ajst-28818	393	8	compensation	compensation	NOUN
ajst-28818	393	9	devices	device	NOUN
ajst-28818	393	10	can	can	AUX
ajst-28818	393	11	not	not	PART
ajst-28818	393	12	only	only	ADV
ajst-28818	393	13	compensate	compensate	VERB
ajst-28818	393	14	the	the	DET
ajst-28818	393	15	platform	platform	NOUN
ajst-28818	393	16	heave	heave	PROPN
ajst-28818	393	17	motion	motion	NOUN
ajst-28818	393	18	,	,	PUNCT
ajst-28818	393	19	reduce	reduce	VERB
ajst-28818	393	20	bit	bit	NOUN
ajst-28818	393	21	pressure	pressure	NOUN
ajst-28818	393	22	fluctuations	fluctuation	NOUN
ajst-28818	393	23	,	,	PUNCT
ajst-28818	393	24	avoid	avoid	VERB
ajst-28818	393	25	bit	bit	NOUN
ajst-28818	393	26	jumping	jump	VERB
ajst-28818	393	27	and	and	CCONJ
ajst-28818	393	28	reversal	reversal	NOUN
ajst-28818	393	29	phenomena	phenomenon	NOUN
ajst-28818	393	30	,	,	PUNCT
ajst-28818	393	31	but	but	CCONJ
ajst-28818	393	32	also	also	ADV
ajst-28818	393	33	reduce	reduce	VERB
ajst-28818	393	34	the	the	DET
ajst-28818	393	35	lateral	lateral	ADJ
ajst-28818	393	36	vibration	vibration	NOUN
ajst-28818	393	37	of	of	ADP
ajst-28818	393	38	the	the	DET
ajst-28818	393	39	drillstring	drillstring	NOUN
ajst-28818	393	40	in	in	ADP
ajst-28818	393	41	seawater	seawater	NOUN
ajst-28818	393	42	.	.	PUNCT
ajst-28818	394	1	figure	figure	NOUN
ajst-28818	394	2	9	9	NUM
ajst-28818	394	3	.	.	PUNCT
ajst-28818	394	4	time	time	NOUN
ajst-28818	394	5	-	-	PUNCT
ajst-28818	394	6	history	history	NOUN
ajst-28818	394	7	responses	response	NOUN
ajst-28818	394	8	with	with	ADP
ajst-28818	394	9	and	and	CCONJ
ajst-28818	394	10	without	without	ADP
ajst-28818	394	11	heave	heave	PROPN
ajst-28818	394	12	compensation	compensation	NOUN
ajst-28818	394	13	:	:	PUNCT
ajst-28818	394	14	(	(	PUNCT
ajst-28818	394	15	a	a	X
ajst-28818	394	16	)	)	PUNCT
ajst-28818	394	17	axial	axial	ADJ
ajst-28818	394	18	displacement	displacement	NOUN
ajst-28818	394	19	at	at	ADP
ajst-28818	394	20	the	the	DET
ajst-28818	394	21	top	top	NOUN
ajst-28818	394	22	of	of	ADP
ajst-28818	394	23	the	the	DET
ajst-28818	394	24	drill	drill	NOUN
ajst-28818	394	25	-	-	PUNCT
ajst-28818	394	26	string	string	NOUN
ajst-28818	394	27	,	,	PUNCT
ajst-28818	394	28	(	(	PUNCT
ajst-28818	394	29	b	b	NOUN
ajst-28818	394	30	)	)	PUNCT
ajst-28818	394	31	wob	wob	ADV
ajst-28818	394	32	,	,	PUNCT
ajst-28818	394	33	(	(	PUNCT
ajst-28818	394	34	c	c	X
ajst-28818	394	35	)	)	PUNCT
ajst-28818	394	36	lateral	lateral	ADJ
ajst-28818	394	37	displacement	displacement	NOUN
ajst-28818	394	38	at	at	ADP
ajst-28818	394	39	the	the	DET
ajst-28818	394	40	midpoint	midpoint	NOUN
ajst-28818	394	41	of	of	ADP
ajst-28818	394	42	the	the	DET
ajst-28818	394	43	drill	drill	NOUN
ajst-28818	394	44	-	-	PUNCT
ajst-28818	394	45	string	string	NOUN
ajst-28818	394	46	in	in	ADP
ajst-28818	394	47	the	the	DET
ajst-28818	394	48	seawater	seawater	NOUN
ajst-28818	394	49	section	section	NOUN
ajst-28818	394	50	,	,	PUNCT
ajst-28818	394	51	and	and	CCONJ
ajst-28818	394	52	(	(	PUNCT
ajst-28818	394	53	d	d	NOUN
ajst-28818	394	54	)	)	PUNCT
ajst-28818	394	55	bit	bit	NOUN
ajst-28818	394	56	speed	speed	NOUN
ajst-28818	394	57	293	293	NUM
ajst-28818	394	58	3.2	3.2	NUM
ajst-28818	394	59	.	.	PUNCT
ajst-28818	395	1	consider	consider	VERB
ajst-28818	395	2	platform	platform	NOUN
ajst-28818	395	3	heave	heave	VERB
ajst-28818	395	4	motion	motion	NOUN
ajst-28818	395	5	and	and	CCONJ
ajst-28818	395	6	drift	drift	NOUN
ajst-28818	395	7	motion	motion	NOUN
ajst-28818	395	8	the	the	DET
ajst-28818	395	9	mean	mean	ADJ
ajst-28818	395	10	drift	drift	NOUN
ajst-28818	395	11	of	of	ADP
ajst-28818	395	12	the	the	DET
ajst-28818	395	13	platform	platform	NOUN
ajst-28818	395	14	's	's	PART
ajst-28818	395	15	slow	slow	ADJ
ajst-28818	395	16	drift	drift	NOUN
ajst-28818	395	17	motion	motion	NOUN
ajst-28818	395	18	is	be	AUX
ajst-28818	395	19	20	20	NUM
ajst-28818	395	20	m	m	NOUN
ajst-28818	395	21	,	,	PUNCT
ajst-28818	395	22	the	the	DET
ajst-28818	395	23	amplitude	amplitude	NOUN
ajst-28818	395	24	is	be	AUX
ajst-28818	395	25	15	15	NUM
ajst-28818	395	26	m	m	NOUN
ajst-28818	395	27	,	,	PUNCT
ajst-28818	395	28	the	the	DET
ajst-28818	395	29	period	period	NOUN
ajst-28818	395	30	is	be	AUX
ajst-28818	395	31	80	80	NUM
ajst-28818	395	32	s	s	NOUN
ajst-28818	395	33	,	,	PUNCT
ajst-28818	395	34	the	the	DET
ajst-28818	395	35	phase	phase	NOUN
ajst-28818	395	36	angle	angle	NOUN
ajst-28818	395	37	is	be	AUX
ajst-28818	395	38	/	/	SYM
ajst-28818	395	39	2	2	PROPN
ajst-28818	395	40	.	.	PUNCT
ajst-28818	396	1	the	the	DET
ajst-28818	396	2	amplitude	amplitude	NOUN
ajst-28818	396	3	of	of	ADP
ajst-28818	396	4	the	the	DET
ajst-28818	396	5	platform	platform	NOUN
ajst-28818	396	6	's	's	PART
ajst-28818	396	7	heave	heave	ADJ
ajst-28818	396	8	motion	motion	NOUN
ajst-28818	396	9	is	be	AUX
ajst-28818	396	10	1.5	1.5	NUM
ajst-28818	396	11	m	m	NOUN
ajst-28818	396	12	and	and	CCONJ
ajst-28818	396	13	the	the	DET
ajst-28818	396	14	period	period	NOUN
ajst-28818	396	15	is	be	AUX
ajst-28818	396	16	the	the	DET
ajst-28818	396	17	same	same	ADJ
ajst-28818	396	18	as	as	ADP
ajst-28818	396	19	the	the	DET
ajst-28818	396	20	wave	wave	NOUN
ajst-28818	396	21	period	period	NOUN
ajst-28818	396	22	of	of	ADP
ajst-28818	396	23	11.2	11.2	NUM
ajst-28818	396	24	s.	s.	PROPN
ajst-28818	396	25	case	case	NOUN
ajst-28818	396	26	1	1	NUM
ajst-28818	396	27	considers	consider	VERB
ajst-28818	396	28	only	only	ADV
ajst-28818	396	29	slow	slow	ADJ
ajst-28818	396	30	drift	drift	NOUN
ajst-28818	396	31	motion	motion	NOUN
ajst-28818	396	32	,	,	PUNCT
ajst-28818	396	33	case	case	NOUN
ajst-28818	396	34	2	2	NUM
ajst-28818	396	35	considers	consider	VERB
ajst-28818	396	36	only	only	ADV
ajst-28818	396	37	heave	heave	VERB
ajst-28818	396	38	motion	motion	NOUN
ajst-28818	396	39	,	,	PUNCT
ajst-28818	396	40	and	and	CCONJ
ajst-28818	396	41	case	case	NOUN
ajst-28818	396	42	3	3	NUM
ajst-28818	396	43	considers	consider	VERB
ajst-28818	396	44	both	both	CCONJ
ajst-28818	396	45	slow	slow	ADJ
ajst-28818	396	46	drift	drift	NOUN
ajst-28818	396	47	and	and	CCONJ
ajst-28818	396	48	heave	heave	VERB
ajst-28818	396	49	motion	motion	NOUN
ajst-28818	396	50	.	.	PUNCT
ajst-28818	397	1	fig	fig	NOUN
ajst-28818	397	2	.	.	PUNCT
ajst-28818	398	1	10	10	NUM
ajst-28818	398	2	shows	show	VERB
ajst-28818	398	3	the	the	DET
ajst-28818	398	4	time	time	NOUN
ajst-28818	398	5	-	-	PUNCT
ajst-28818	398	6	history	history	NOUN
ajst-28818	398	7	response	response	NOUN
ajst-28818	398	8	diagram	diagram	NOUN
ajst-28818	398	9	of	of	ADP
ajst-28818	398	10	the	the	DET
ajst-28818	398	11	drill	drill	NOUN
ajst-28818	398	12	-	-	PUNCT
ajst-28818	398	13	string	string	NOUN
ajst-28818	398	14	under	under	ADP
ajst-28818	398	15	three	three	NUM
ajst-28818	398	16	conditions	condition	NOUN
ajst-28818	398	17	.	.	PUNCT
ajst-28818	399	1	fig	fig	NOUN
ajst-28818	399	2	.	.	PUNCT
ajst-28818	400	1	10	10	NUM
ajst-28818	400	2	(	(	PUNCT
ajst-28818	400	3	a	a	NOUN
ajst-28818	400	4	)	)	PUNCT
ajst-28818	400	5	and	and	CCONJ
ajst-28818	400	6	(	(	PUNCT
ajst-28818	400	7	b	b	X
ajst-28818	400	8	)	)	PUNCT
ajst-28818	400	9	show	show	VERB
ajst-28818	400	10	the	the	DET
ajst-28818	400	11	axial	axial	ADJ
ajst-28818	400	12	displacement	displacement	NOUN
ajst-28818	400	13	at	at	ADP
ajst-28818	400	14	the	the	DET
ajst-28818	400	15	top	top	NOUN
ajst-28818	400	16	of	of	ADP
ajst-28818	400	17	the	the	DET
ajst-28818	400	18	drill	drill	NOUN
ajst-28818	400	19	-	-	PUNCT
ajst-28818	400	20	string	string	NOUN
ajst-28818	400	21	and	and	CCONJ
ajst-28818	400	22	the	the	DET
ajst-28818	400	23	bit	bit	NOUN
ajst-28818	400	24	pressure	pressure	NOUN
ajst-28818	400	25	,	,	PUNCT
ajst-28818	400	26	respectively	respectively	ADV
ajst-28818	400	27	.	.	PUNCT
ajst-28818	401	1	it	it	PRON
ajst-28818	401	2	can	can	AUX
ajst-28818	401	3	be	be	AUX
ajst-28818	401	4	seen	see	VERB
ajst-28818	401	5	that	that	SCONJ
ajst-28818	401	6	the	the	DET
ajst-28818	401	7	response	response	NOUN
ajst-28818	401	8	results	result	NOUN
ajst-28818	401	9	of	of	ADP
ajst-28818	401	10	case	case	NOUN
ajst-28818	401	11	3	3	NUM
ajst-28818	401	12	are	be	AUX
ajst-28818	401	13	approximately	approximately	ADV
ajst-28818	401	14	the	the	DET
ajst-28818	401	15	superposition	superposition	NOUN
ajst-28818	401	16	of	of	ADP
ajst-28818	401	17	the	the	DET
ajst-28818	401	18	response	response	NOUN
ajst-28818	401	19	results	result	NOUN
ajst-28818	401	20	of	of	ADP
ajst-28818	401	21	case	case	NOUN
ajst-28818	401	22	1	1	NUM
ajst-28818	401	23	and	and	CCONJ
ajst-28818	401	24	case	case	NOUN
ajst-28818	401	25	2	2	NUM
ajst-28818	401	26	,	,	PUNCT
ajst-28818	401	27	in	in	ADP
ajst-28818	401	28	which	which	PRON
ajst-28818	401	29	the	the	DET
ajst-28818	401	30	heave	heave	PROPN
ajst-28818	401	31	movement	movement	NOUN
ajst-28818	401	32	has	have	VERB
ajst-28818	401	33	a	a	DET
ajst-28818	401	34	significant	significant	ADJ
ajst-28818	401	35	influence	influence	NOUN
ajst-28818	401	36	on	on	ADP
ajst-28818	401	37	bit	bit	NOUN
ajst-28818	401	38	weight	weight	NOUN
ajst-28818	401	39	,	,	PUNCT
ajst-28818	401	40	while	while	SCONJ
ajst-28818	401	41	the	the	DET
ajst-28818	401	42	slow	slow	ADJ
ajst-28818	401	43	drift	drift	NOUN
ajst-28818	401	44	movement	movement	NOUN
ajst-28818	401	45	mainly	mainly	ADV
ajst-28818	401	46	has	have	VERB
ajst-28818	401	47	an	an	DET
ajst-28818	401	48	influence	influence	NOUN
ajst-28818	401	49	on	on	ADP
ajst-28818	401	50	the	the	DET
ajst-28818	401	51	axial	axial	ADJ
ajst-28818	401	52	displacement	displacement	NOUN
ajst-28818	401	53	at	at	ADP
ajst-28818	401	54	the	the	DET
ajst-28818	401	55	top	top	NOUN
ajst-28818	401	56	of	of	ADP
ajst-28818	401	57	the	the	DET
ajst-28818	401	58	drill	drill	NOUN
ajst-28818	401	59	column	column	NOUN
ajst-28818	401	60	.	.	PUNCT
ajst-28818	402	1	therefore	therefore	ADV
ajst-28818	402	2	,	,	PUNCT
ajst-28818	402	3	when	when	SCONJ
ajst-28818	402	4	the	the	DET
ajst-28818	402	5	platform	platform	NOUN
ajst-28818	402	6	has	have	VERB
ajst-28818	402	7	a	a	DET
ajst-28818	402	8	pronounced	pronounce	VERB
ajst-28818	402	9	slow	slow	ADJ
ajst-28818	402	10	drift	drift	NOUN
ajst-28818	402	11	motion	motion	NOUN
ajst-28818	402	12	,	,	PUNCT
ajst-28818	402	13	the	the	DET
ajst-28818	402	14	effective	effective	ADJ
ajst-28818	402	15	travel	travel	NOUN
ajst-28818	402	16	of	of	ADP
ajst-28818	402	17	the	the	DET
ajst-28818	402	18	heave	heave	ADJ
ajst-28818	402	19	compensator	compensator	NOUN
ajst-28818	402	20	should	should	AUX
ajst-28818	402	21	be	be	AUX
ajst-28818	402	22	increased	increase	VERB
ajst-28818	402	23	.	.	PUNCT
ajst-28818	403	1	fig	fig	NOUN
ajst-28818	403	2	.	.	PUNCT
ajst-28818	404	1	10	10	NUM
ajst-28818	404	2	(	(	PUNCT
ajst-28818	404	3	c	c	NOUN
ajst-28818	404	4	)	)	PUNCT
ajst-28818	404	5	shows	show	VERB
ajst-28818	404	6	the	the	DET
ajst-28818	404	7	lateral	lateral	ADJ
ajst-28818	404	8	displacement	displacement	NOUN
ajst-28818	404	9	at	at	ADP
ajst-28818	404	10	the	the	DET
ajst-28818	404	11	midpoint	midpoint	NOUN
ajst-28818	404	12	of	of	ADP
ajst-28818	404	13	the	the	DET
ajst-28818	404	14	drill	drill	NOUN
ajst-28818	404	15	-	-	PUNCT
ajst-28818	404	16	string	string	NOUN
ajst-28818	404	17	in	in	ADP
ajst-28818	404	18	the	the	DET
ajst-28818	404	19	seawater	seawater	NOUN
ajst-28818	404	20	segment	segment	NOUN
ajst-28818	404	21	.	.	PUNCT
ajst-28818	405	1	it	it	PRON
ajst-28818	405	2	can	can	AUX
ajst-28818	405	3	be	be	AUX
ajst-28818	405	4	found	find	VERB
ajst-28818	405	5	that	that	SCONJ
ajst-28818	405	6	in	in	ADP
ajst-28818	405	7	case	case	NOUN
ajst-28818	405	8	2	2	NUM
ajst-28818	405	9	,	,	PUNCT
ajst-28818	405	10	the	the	DET
ajst-28818	405	11	lateral	lateral	ADJ
ajst-28818	405	12	stiffness	stiffness	NOUN
ajst-28818	405	13	of	of	ADP
ajst-28818	405	14	the	the	DET
ajst-28818	405	15	drill	drill	NOUN
ajst-28818	405	16	-	-	PUNCT
ajst-28818	405	17	string	string	NOUN
ajst-28818	405	18	in	in	ADP
ajst-28818	405	19	the	the	DET
ajst-28818	405	20	seawater	seawater	NOUN
ajst-28818	405	21	segment	segment	NOUN
ajst-28818	405	22	fluctuates	fluctuate	NOUN
ajst-28818	405	23	due	due	ADJ
ajst-28818	405	24	to	to	ADP
ajst-28818	405	25	changes	change	NOUN
ajst-28818	405	26	in	in	ADP
ajst-28818	405	27	the	the	DET
ajst-28818	405	28	axial	axial	ADJ
ajst-28818	405	29	tension	tension	NOUN
ajst-28818	405	30	,	,	PUNCT
ajst-28818	405	31	resulting	result	VERB
ajst-28818	405	32	in	in	ADP
ajst-28818	405	33	lateral	lateral	ADJ
ajst-28818	405	34	displacement	displacement	ADJ
ajst-28818	405	35	fluctuations	fluctuation	NOUN
ajst-28818	405	36	,	,	PUNCT
ajst-28818	405	37	which	which	PRON
ajst-28818	405	38	is	be	AUX
ajst-28818	405	39	also	also	ADV
ajst-28818	405	40	the	the	DET
ajst-28818	405	41	reason	reason	NOUN
ajst-28818	405	42	why	why	SCONJ
ajst-28818	405	43	the	the	DET
ajst-28818	405	44	response	response	NOUN
ajst-28818	405	45	result	result	NOUN
ajst-28818	405	46	of	of	ADP
ajst-28818	405	47	case	case	NOUN
ajst-28818	405	48	3	3	NUM
ajst-28818	405	49	is	be	AUX
ajst-28818	405	50	slightly	slightly	ADV
ajst-28818	405	51	different	different	ADJ
ajst-28818	405	52	from	from	ADP
ajst-28818	405	53	that	that	PRON
ajst-28818	405	54	of	of	ADP
ajst-28818	405	55	case1	case1	PROPN
ajst-28818	405	56	.	.	PUNCT
ajst-28818	406	1	fig	fig	NOUN
ajst-28818	406	2	.	.	PUNCT
ajst-28818	407	1	10	10	NUM
ajst-28818	407	2	(	(	PUNCT
ajst-28818	407	3	d	d	NOUN
ajst-28818	407	4	)	)	PUNCT
ajst-28818	407	5	shows	show	VERB
ajst-28818	407	6	the	the	DET
ajst-28818	407	7	bit	bit	NOUN
ajst-28818	407	8	rotation	rotation	NOUN
ajst-28818	407	9	speed	speed	NOUN
ajst-28818	407	10	response	response	NOUN
ajst-28818	407	11	.	.	PUNCT
ajst-28818	408	1	it	it	PRON
ajst-28818	408	2	can	can	AUX
ajst-28818	408	3	be	be	AUX
ajst-28818	408	4	seen	see	VERB
ajst-28818	408	5	that	that	SCONJ
ajst-28818	408	6	the	the	DET
ajst-28818	408	7	response	response	NOUN
ajst-28818	408	8	results	result	NOUN
ajst-28818	408	9	of	of	ADP
ajst-28818	408	10	case	case	NOUN
ajst-28818	408	11	3	3	NUM
ajst-28818	408	12	and	and	CCONJ
ajst-28818	408	13	case	case	NOUN
ajst-28818	408	14	1	1	NUM
ajst-28818	408	15	are	be	AUX
ajst-28818	408	16	significantly	significantly	ADV
ajst-28818	408	17	different	different	ADJ
ajst-28818	408	18	from	from	ADP
ajst-28818	408	19	those	those	PRON
ajst-28818	408	20	of	of	ADP
ajst-28818	408	21	case	case	NOUN
ajst-28818	408	22	2	2	NUM
ajst-28818	408	23	,	,	PUNCT
ajst-28818	408	24	indicating	indicate	VERB
ajst-28818	408	25	that	that	SCONJ
ajst-28818	408	26	the	the	DET
ajst-28818	408	27	bit	bit	ADJ
ajst-28818	408	28	-	-	PUNCT
ajst-28818	408	29	twist	twist	NOUN
ajst-28818	408	30	vibrations	vibration	NOUN
ajst-28818	408	31	are	be	AUX
ajst-28818	408	32	greatly	greatly	ADV
ajst-28818	408	33	affected	affect	VERB
ajst-28818	408	34	by	by	ADP
ajst-28818	408	35	the	the	DET
ajst-28818	408	36	heaving	heaving	NOUN
ajst-28818	408	37	motion	motion	NOUN
ajst-28818	408	38	of	of	ADP
ajst-28818	408	39	the	the	DET
ajst-28818	408	40	platform	platform	NOUN
ajst-28818	408	41	,	,	PUNCT
ajst-28818	408	42	and	and	CCONJ
ajst-28818	408	43	slow	slow	ADJ
ajst-28818	408	44	-	-	PUNCT
ajst-28818	408	45	drift	drift	NOUN
ajst-28818	408	46	motion	motion	NOUN
ajst-28818	408	47	has	have	VERB
ajst-28818	408	48	some	some	DET
ajst-28818	408	49	influence	influence	NOUN
ajst-28818	408	50	.	.	PUNCT
ajst-28818	409	1	therefore	therefore	ADV
ajst-28818	409	2	,	,	PUNCT
ajst-28818	409	3	in	in	ADP
ajst-28818	409	4	order	order	NOUN
ajst-28818	409	5	to	to	PART
ajst-28818	409	6	simulate	simulate	VERB
ajst-28818	409	7	the	the	DET
ajst-28818	409	8	actual	actual	ADJ
ajst-28818	409	9	drilling	drilling	NOUN
ajst-28818	409	10	conditions	condition	NOUN
ajst-28818	409	11	as	as	ADV
ajst-28818	409	12	well	well	ADV
ajst-28818	409	13	as	as	ADP
ajst-28818	409	14	possible	possible	ADJ
ajst-28818	409	15	,	,	PUNCT
ajst-28818	409	16	it	it	PRON
ajst-28818	409	17	is	be	AUX
ajst-28818	409	18	necessary	necessary	ADJ
ajst-28818	409	19	to	to	PART
ajst-28818	409	20	analyze	analyze	VERB
ajst-28818	409	21	the	the	DET
ajst-28818	409	22	response	response	NOUN
ajst-28818	409	23	characteristics	characteristic	NOUN
ajst-28818	409	24	of	of	ADP
ajst-28818	409	25	the	the	DET
ajst-28818	409	26	entire	entire	ADJ
ajst-28818	409	27	drill	drill	NOUN
ajst-28818	409	28	-	-	PUNCT
ajst-28818	409	29	string	string	NOUN
ajst-28818	409	30	system	system	NOUN
ajst-28818	409	31	considering	consider	VERB
ajst-28818	409	32	the	the	DET
ajst-28818	409	33	platform	platform	NOUN
ajst-28818	409	34	heave	heave	VERB
ajst-28818	409	35	and	and	CCONJ
ajst-28818	409	36	slow	slow	VERB
ajst-28818	409	37	drift	drift	NOUN
ajst-28818	409	38	motion	motion	NOUN
ajst-28818	409	39	.	.	PUNCT
ajst-28818	410	1	figure	figure	NOUN
ajst-28818	410	2	10	10	NUM
ajst-28818	410	3	.	.	PUNCT
ajst-28818	411	1	response	response	NOUN
ajst-28818	411	2	curves	curve	NOUN
ajst-28818	411	3	considering	consider	VERB
ajst-28818	411	4	platform	platform	NOUN
ajst-28818	411	5	heave	heave	VERB
ajst-28818	411	6	and	and	CCONJ
ajst-28818	411	7	drift	drift	VERB
ajst-28818	411	8	separately	separately	ADV
ajst-28818	411	9	and	and	CCONJ
ajst-28818	411	10	both	both	PRON
ajst-28818	411	11	:	:	PUNCT
ajst-28818	411	12	(	(	PUNCT
ajst-28818	411	13	a	a	X
ajst-28818	411	14	)	)	PUNCT
ajst-28818	411	15	axial	axial	ADJ
ajst-28818	411	16	displacement	displacement	NOUN
ajst-28818	411	17	at	at	ADP
ajst-28818	411	18	the	the	DET
ajst-28818	411	19	top	top	NOUN
ajst-28818	411	20	of	of	ADP
ajst-28818	411	21	the	the	DET
ajst-28818	411	22	drill	drill	NOUN
ajst-28818	411	23	-	-	PUNCT
ajst-28818	411	24	string	string	NOUN
ajst-28818	411	25	,	,	PUNCT
ajst-28818	411	26	(	(	PUNCT
ajst-28818	411	27	b	b	NOUN
ajst-28818	411	28	)	)	PUNCT
ajst-28818	411	29	wob	wob	ADV
ajst-28818	411	30	,	,	PUNCT
ajst-28818	411	31	(	(	PUNCT
ajst-28818	411	32	c	c	X
ajst-28818	411	33	)	)	PUNCT
ajst-28818	411	34	lateral	lateral	ADJ
ajst-28818	411	35	displacement	displacement	NOUN
ajst-28818	411	36	at	at	ADP
ajst-28818	411	37	the	the	DET
ajst-28818	411	38	midpoint	midpoint	NOUN
ajst-28818	411	39	of	of	ADP
ajst-28818	411	40	the	the	DET
ajst-28818	411	41	drill	drill	NOUN
ajst-28818	411	42	-	-	PUNCT
ajst-28818	411	43	string	string	NOUN
ajst-28818	411	44	in	in	ADP
ajst-28818	411	45	the	the	DET
ajst-28818	411	46	seawater	seawater	NOUN
ajst-28818	411	47	section	section	NOUN
ajst-28818	411	48	,	,	PUNCT
ajst-28818	411	49	and	and	CCONJ
ajst-28818	411	50	(	(	PUNCT
ajst-28818	411	51	d	d	NOUN
ajst-28818	411	52	)	)	PUNCT
ajst-28818	411	53	bit	bit	NOUN
ajst-28818	411	54	speed	speed	NOUN
ajst-28818	411	55	3.3	3.3	NUM
ajst-28818	411	56	.	.	PUNCT
ajst-28818	412	1	the	the	DET
ajst-28818	412	2	influence	influence	NOUN
ajst-28818	412	3	of	of	ADP
ajst-28818	412	4	different	different	ADJ
ajst-28818	412	5	slow	slow	ADJ
ajst-28818	412	6	drift	drift	NOUN
ajst-28818	412	7	motion	motion	NOUN
ajst-28818	412	8	amplitude	amplitude	NOUN
ajst-28818	412	9	for	for	ADP
ajst-28818	412	10	dynamically	dynamically	ADV
ajst-28818	412	11	positioned	position	VERB
ajst-28818	412	12	drilling	drilling	NOUN
ajst-28818	412	13	platforms	platform	NOUN
ajst-28818	412	14	,	,	PUNCT
ajst-28818	412	15	the	the	DET
ajst-28818	412	16	period	period	NOUN
ajst-28818	412	17	and	and	CCONJ
ajst-28818	412	18	amplitude	amplitude	NOUN
ajst-28818	412	19	of	of	ADP
ajst-28818	412	20	slow	slow	ADJ
ajst-28818	412	21	drift	drift	NOUN
ajst-28818	412	22	motion	motion	NOUN
ajst-28818	412	23	depends	depend	VERB
ajst-28818	412	24	on	on	ADP
ajst-28818	412	25	the	the	DET
ajst-28818	412	26	marine	marine	ADJ
ajst-28818	412	27	environment	environment	NOUN
ajst-28818	412	28	load	load	NOUN
ajst-28818	412	29	,	,	PUNCT
ajst-28818	412	30	platform	platform	NOUN
ajst-28818	412	31	control	control	NOUN
ajst-28818	412	32	system	system	NOUN
ajst-28818	412	33	,	,	PUNCT
ajst-28818	412	34	position	position	NOUN
ajst-28818	412	35	sensing	sense	VERB
ajst-28818	412	36	system	system	NOUN
ajst-28818	412	37	,	,	PUNCT
ajst-28818	412	38	and	and	CCONJ
ajst-28818	412	39	control	control	NOUN
ajst-28818	412	40	algorithm	algorithm	NOUN
ajst-28818	412	41	(	(	PUNCT
ajst-28818	412	42	qin	qin	PROPN
ajst-28818	412	43	et	et	PROPN
ajst-28818	412	44	al	al	PROPN
ajst-28818	412	45	.	.	PROPN
ajst-28818	412	46	,	,	PUNCT
ajst-28818	412	47	2022	2022	NUM
ajst-28818	412	48	)	)	PUNCT
ajst-28818	412	49	.	.	PUNCT
ajst-28818	413	1	while	while	SCONJ
ajst-28818	413	2	the	the	DET
ajst-28818	413	3	top	top	NOUN
ajst-28818	413	4	of	of	ADP
ajst-28818	413	5	the	the	DET
ajst-28818	413	6	drill	drill	NOUN
ajst-28818	413	7	-	-	PUNCT
ajst-28818	413	8	string	string	NOUN
ajst-28818	413	9	is	be	AUX
ajst-28818	413	10	directly	directly	ADV
ajst-28818	413	11	connected	connect	VERB
ajst-28818	413	12	to	to	ADP
ajst-28818	413	13	the	the	DET
ajst-28818	413	14	drilling	drilling	NOUN
ajst-28818	413	15	platform	platform	NOUN
ajst-28818	413	16	,	,	PUNCT
ajst-28818	413	17	the	the	DET
ajst-28818	413	18	long	long	ADJ
ajst-28818	413	19	-	-	PUNCT
ajst-28818	413	20	term	term	NOUN
ajst-28818	413	21	slow	slow	ADJ
ajst-28818	413	22	drift	drift	NOUN
ajst-28818	413	23	of	of	ADP
ajst-28818	413	24	the	the	DET
ajst-28818	413	25	platform	platform	NOUN
ajst-28818	413	26	and	and	CCONJ
ajst-28818	413	27	the	the	DET
ajst-28818	413	28	sea	sea	NOUN
ajst-28818	413	29	current	current	ADJ
ajst-28818	413	30	load	load	NOUN
ajst-28818	413	31	force	force	VERB
ajst-28818	413	32	the	the	DET
ajst-28818	413	33	drill	drill	NOUN
ajst-28818	413	34	-	-	PUNCT
ajst-28818	413	35	string	string	NOUN
ajst-28818	413	36	to	to	PART
ajst-28818	413	37	generate	generate	VERB
ajst-28818	413	38	large	large	ADJ
ajst-28818	413	39	lateral	lateral	ADJ
ajst-28818	413	40	displacements	displacement	NOUN
ajst-28818	413	41	.	.	PUNCT
ajst-28818	414	1	assuming	assume	VERB
ajst-28818	414	2	that	that	SCONJ
ajst-28818	414	3	the	the	DET
ajst-28818	414	4	platform	platform	NOUN
ajst-28818	414	5	is	be	AUX
ajst-28818	414	6	located	locate	VERB
ajst-28818	414	7	at	at	ADP
ajst-28818	414	8	u=5	u=5	PROPN
ajst-28818	414	9	m	m	NOUN
ajst-28818	414	10	at	at	ADP
ajst-28818	414	11	the	the	DET
ajst-28818	414	12	initial	initial	ADJ
ajst-28818	414	13	time	time	NOUN
ajst-28818	414	14	,	,	PUNCT
ajst-28818	414	15	different	different	ADJ
ajst-28818	414	16	slow	slow	ADJ
ajst-28818	414	17	drift	drift	NOUN
ajst-28818	414	18	amplitudes	amplitude	NOUN
ajst-28818	414	19	(	(	PUNCT
ajst-28818	414	20	10	10	NUM
ajst-28818	414	21	m	m	NOUN
ajst-28818	414	22	,	,	PUNCT
ajst-28818	414	23	15	15	NUM
ajst-28818	414	24	m	m	NOUN
ajst-28818	414	25	and	and	CCONJ
ajst-28818	414	26	20	20	NUM
ajst-28818	414	27	m	m	NOUN
ajst-28818	414	28	)	)	PUNCT
ajst-28818	414	29	are	be	AUX
ajst-28818	414	30	taken	take	VERB
ajst-28818	414	31	to	to	PART
ajst-28818	414	32	make	make	VERB
ajst-28818	414	33	the	the	DET
ajst-28818	414	34	platform	platform	NOUN
ajst-28818	414	35	perform	perform	VERB
ajst-28818	414	36	slow	slow	ADJ
ajst-28818	414	37	drift	drift	NOUN
ajst-28818	414	38	at	at	ADP
ajst-28818	414	39	5	5	NUM
ajst-28818	414	40	-	-	SYM
ajst-28818	414	41	25	25	NUM
ajst-28818	414	42	m	m	PROPN
ajst-28818	414	43	,	,	PUNCT
ajst-28818	414	44	5	5	NUM
ajst-28818	414	45	-	-	SYM
ajst-28818	414	46	35	35	NUM
ajst-28818	414	47	m	m	NOUN
ajst-28818	414	48	and	and	CCONJ
ajst-28818	414	49	5	5	NUM
ajst-28818	414	50	-	-	SYM
ajst-28818	414	51	45	45	NUM
ajst-28818	414	52	m	m	NOUN
ajst-28818	414	53	respectively	respectively	ADV
ajst-28818	414	54	,	,	PUNCT
ajst-28818	414	55	and	and	CCONJ
ajst-28818	414	56	the	the	DET
ajst-28818	414	57	slow	slow	ADJ
ajst-28818	414	58	drift	drift	NOUN
ajst-28818	414	59	period	period	NOUN
ajst-28818	414	60	is	be	AUX
ajst-28818	414	61	80s	80	NOUN
ajst-28818	414	62	.	.	PUNCT
ajst-28818	415	1	the	the	DET
ajst-28818	415	2	amplitude	amplitude	NOUN
ajst-28818	415	3	of	of	ADP
ajst-28818	415	4	heave	heave	ADJ
ajst-28818	415	5	motion	motion	NOUN
ajst-28818	415	6	of	of	ADP
ajst-28818	415	7	the	the	DET
ajst-28818	415	8	platform	platform	NOUN
ajst-28818	415	9	is	be	AUX
ajst-28818	415	10	0.5	0.5	NUM
ajst-28818	415	11	m	m	NOUN
ajst-28818	415	12	,	,	PUNCT
ajst-28818	415	13	and	and	CCONJ
ajst-28818	415	14	its	its	PRON
ajst-28818	415	15	period	period	NOUN
ajst-28818	415	16	is	be	AUX
ajst-28818	415	17	the	the	DET
ajst-28818	415	18	same	same	ADJ
ajst-28818	415	19	as	as	ADP
ajst-28818	415	20	the	the	DET
ajst-28818	415	21	wave	wave	NOUN
ajst-28818	415	22	period	period	NOUN
ajst-28818	415	23	of	of	ADP
ajst-28818	415	24	11.2	11.2	NUM
ajst-28818	415	25	s.	s.	NOUN
ajst-28818	415	26	different	different	ADJ
ajst-28818	415	27	from	from	ADP
ajst-28818	415	28	traditional	traditional	ADJ
ajst-28818	415	29	land	land	NOUN
ajst-28818	415	30	drilling	drilling	NOUN
ajst-28818	415	31	,	,	PUNCT
ajst-28818	415	32	riserless	riserless	NOUN
ajst-28818	415	33	drilling	drilling	NOUN
ajst-28818	415	34	has	have	VERB
ajst-28818	415	35	no	no	DET
ajst-28818	415	36	wall	wall	NOUN
ajst-28818	415	37	restrictions	restriction	NOUN
ajst-28818	415	38	on	on	ADP
ajst-28818	415	39	the	the	DET
ajst-28818	415	40	drilling	drilling	NOUN
ajst-28818	415	41	string	string	NOUN
ajst-28818	415	42	in	in	ADP
ajst-28818	415	43	seawater	seawater	NOUN
ajst-28818	415	44	section	section	NOUN
ajst-28818	415	45	.	.	PUNCT
ajst-28818	416	1	the	the	DET
ajst-28818	416	2	lateral	lateral	ADJ
ajst-28818	416	3	vibration	vibration	NOUN
ajst-28818	416	4	in	in	ADP
ajst-28818	416	5	the	the	DET
ajst-28818	416	6	seawater	seawater	NOUN
ajst-28818	416	7	section	section	NOUN
ajst-28818	416	8	is	be	AUX
ajst-28818	416	9	greatly	greatly	ADV
ajst-28818	416	10	294	294	NUM
ajst-28818	416	11	influenced	influence	VERB
ajst-28818	416	12	by	by	ADP
ajst-28818	416	13	the	the	DET
ajst-28818	416	14	slow	slow	ADJ
ajst-28818	416	15	drift	drift	NOUN
ajst-28818	416	16	movement	movement	NOUN
ajst-28818	416	17	of	of	ADP
ajst-28818	416	18	the	the	DET
ajst-28818	416	19	platform	platform	NOUN
ajst-28818	416	20	and	and	CCONJ
ajst-28818	416	21	the	the	DET
ajst-28818	416	22	combined	combined	ADJ
ajst-28818	416	23	excitation	excitation	NOUN
ajst-28818	416	24	of	of	ADP
ajst-28818	416	25	the	the	DET
ajst-28818	416	26	ocean	ocean	NOUN
ajst-28818	416	27	current	current	NOUN
ajst-28818	416	28	,	,	PUNCT
ajst-28818	416	29	while	while	SCONJ
ajst-28818	416	30	the	the	DET
ajst-28818	416	31	influence	influence	NOUN
ajst-28818	416	32	on	on	ADP
ajst-28818	416	33	the	the	DET
ajst-28818	416	34	drilling	drilling	NOUN
ajst-28818	416	35	string	string	NOUN
ajst-28818	416	36	and	and	CCONJ
ajst-28818	416	37	the	the	DET
ajst-28818	416	38	drilling	drilling	NOUN
ajst-28818	416	39	assembly	assembly	NOUN
ajst-28818	416	40	in	in	ADP
ajst-28818	416	41	formation	formation	NOUN
ajst-28818	416	42	section	section	NOUN
ajst-28818	416	43	is	be	AUX
ajst-28818	416	44	relatively	relatively	ADV
ajst-28818	416	45	small	small	ADJ
ajst-28818	416	46	.	.	PUNCT
ajst-28818	417	1	therefore	therefore	ADV
ajst-28818	417	2	,	,	PUNCT
ajst-28818	417	3	it	it	PRON
ajst-28818	417	4	is	be	AUX
ajst-28818	417	5	necessary	necessary	ADJ
ajst-28818	417	6	to	to	PART
ajst-28818	417	7	make	make	VERB
ajst-28818	417	8	a	a	DET
ajst-28818	417	9	separate	separate	ADJ
ajst-28818	417	10	analysis	analysis	NOUN
ajst-28818	417	11	of	of	ADP
ajst-28818	417	12	lateral	lateral	ADJ
ajst-28818	417	13	vibration	vibration	NOUN
ajst-28818	417	14	characteristics	characteristic	NOUN
ajst-28818	417	15	of	of	ADP
ajst-28818	417	16	drillstring	drillstring	NOUN
ajst-28818	417	17	in	in	ADP
ajst-28818	417	18	the	the	DET
ajst-28818	417	19	seawater	seawater	NOUN
ajst-28818	417	20	section	section	NOUN
ajst-28818	417	21	.	.	PUNCT
ajst-28818	418	1	fig	fig	NOUN
ajst-28818	418	2	.	.	PUNCT
ajst-28818	419	1	11	11	NUM
ajst-28818	419	2	shows	show	VERB
ajst-28818	419	3	the	the	DET
ajst-28818	419	4	lateral	lateral	ADJ
ajst-28818	419	5	timehistory	timehistory	NOUN
ajst-28818	419	6	response	response	NOUN
ajst-28818	419	7	diagram	diagram	NOUN
ajst-28818	419	8	of	of	ADP
ajst-28818	419	9	drilling	drilling	NOUN
ajst-28818	419	10	string	string	NOUN
ajst-28818	419	11	in	in	ADP
ajst-28818	419	12	seawater	seawater	NOUN
ajst-28818	419	13	segment	segment	NOUN
ajst-28818	419	14	.	.	PUNCT
ajst-28818	420	1	it	it	PRON
ajst-28818	420	2	can	can	AUX
ajst-28818	420	3	be	be	AUX
ajst-28818	420	4	seen	see	VERB
ajst-28818	420	5	that	that	SCONJ
ajst-28818	420	6	the	the	DET
ajst-28818	420	7	drilling	drilling	NOUN
ajst-28818	420	8	string	string	NOUN
ajst-28818	420	9	exposed	expose	VERB
ajst-28818	420	10	in	in	ADP
ajst-28818	420	11	seawater	seawater	NOUN
ajst-28818	420	12	moves	move	NOUN
ajst-28818	420	13	periodically	periodically	ADV
ajst-28818	420	14	in	in	ADP
ajst-28818	420	15	the	the	DET
ajst-28818	420	16	lateral	lateral	ADJ
ajst-28818	420	17	direction	direction	NOUN
ajst-28818	420	18	under	under	ADP
ajst-28818	420	19	the	the	DET
ajst-28818	420	20	action	action	NOUN
ajst-28818	420	21	of	of	ADP
ajst-28818	420	22	the	the	DET
ajst-28818	420	23	platform	platform	NOUN
ajst-28818	420	24	's	's	PART
ajst-28818	420	25	slow	slow	ADJ
ajst-28818	420	26	drift	drift	NOUN
ajst-28818	420	27	motion	motion	NOUN
ajst-28818	420	28	and	and	CCONJ
ajst-28818	420	29	ocean	ocean	PROPN
ajst-28818	420	30	current	current	NOUN
ajst-28818	420	31	.	.	PUNCT
ajst-28818	421	1	the	the	PRON
ajst-28818	421	2	larger	large	ADJ
ajst-28818	421	3	the	the	DET
ajst-28818	421	4	slow	slow	ADJ
ajst-28818	421	5	drift	drift	NOUN
ajst-28818	421	6	amplitude	amplitude	NOUN
ajst-28818	421	7	,	,	PUNCT
ajst-28818	421	8	the	the	PRON
ajst-28818	421	9	larger	large	ADJ
ajst-28818	421	10	the	the	DET
ajst-28818	421	11	transverse	transverse	NOUN
ajst-28818	421	12	deformation	deformation	NOUN
ajst-28818	421	13	,	,	PUNCT
ajst-28818	421	14	and	and	CCONJ
ajst-28818	421	15	the	the	PRON
ajst-28818	421	16	greater	great	ADJ
ajst-28818	421	17	the	the	DET
ajst-28818	421	18	bending	bend	VERB
ajst-28818	421	19	moment	moment	NOUN
ajst-28818	421	20	effect	effect	NOUN
ajst-28818	421	21	of	of	ADP
ajst-28818	421	22	drilling	drill	VERB
ajst-28818	421	23	string	string	NOUN
ajst-28818	421	24	.	.	PUNCT
ajst-28818	422	1	therefore	therefore	ADV
ajst-28818	422	2	,	,	PUNCT
ajst-28818	422	3	it	it	PRON
ajst-28818	422	4	is	be	AUX
ajst-28818	422	5	necessary	necessary	ADJ
ajst-28818	422	6	to	to	PART
ajst-28818	422	7	strictly	strictly	ADV
ajst-28818	422	8	control	control	VERB
ajst-28818	422	9	the	the	DET
ajst-28818	422	10	slow	slow	ADJ
ajst-28818	422	11	drift	drift	NOUN
ajst-28818	422	12	motion	motion	NOUN
ajst-28818	422	13	of	of	ADP
ajst-28818	422	14	the	the	DET
ajst-28818	422	15	rig	rig	NOUN
ajst-28818	422	16	during	during	ADP
ajst-28818	422	17	deep	deep	ADJ
ajst-28818	422	18	-	-	PUNCT
ajst-28818	422	19	water	water	NOUN
ajst-28818	422	20	riserless	riserless	NOUN
ajst-28818	422	21	drilling	drilling	NOUN
ajst-28818	422	22	.	.	PUNCT
ajst-28818	423	1	in	in	ADP
ajst-28818	423	2	addition	addition	NOUN
ajst-28818	423	3	,	,	PUNCT
ajst-28818	423	4	it	it	PRON
ajst-28818	423	5	can	can	AUX
ajst-28818	423	6	be	be	AUX
ajst-28818	423	7	found	find	VERB
ajst-28818	423	8	that	that	SCONJ
ajst-28818	423	9	the	the	DET
ajst-28818	423	10	drill	drill	NOUN
ajst-28818	423	11	-	-	PUNCT
ajst-28818	423	12	string	string	NOUN
ajst-28818	423	13	motion	motion	NOUN
ajst-28818	423	14	slightly	slightly	ADV
ajst-28818	423	15	lags	lag	VERB
ajst-28818	423	16	behind	behind	ADP
ajst-28818	423	17	the	the	DET
ajst-28818	423	18	platform	platform	NOUN
ajst-28818	423	19	,	,	PUNCT
ajst-28818	423	20	and	and	CCONJ
ajst-28818	423	21	the	the	DET
ajst-28818	423	22	lag	lag	NOUN
ajst-28818	423	23	time	time	NOUN
ajst-28818	423	24	increases	increase	VERB
ajst-28818	423	25	with	with	ADP
ajst-28818	423	26	the	the	DET
ajst-28818	423	27	increase	increase	NOUN
ajst-28818	423	28	of	of	ADP
ajst-28818	423	29	depth	depth	NOUN
ajst-28818	423	30	.	.	PUNCT
ajst-28818	424	1	combined	combine	VERB
ajst-28818	424	2	with	with	ADP
ajst-28818	424	3	the	the	DET
ajst-28818	424	4	lateral	lateral	ADJ
ajst-28818	424	5	displacement	displacement	ADJ
ajst-28818	424	6	time	time	NOUN
ajst-28818	424	7	-	-	PUNCT
ajst-28818	424	8	history	history	NOUN
ajst-28818	424	9	diagram	diagram	NOUN
ajst-28818	424	10	of	of	ADP
ajst-28818	424	11	the	the	DET
ajst-28818	424	12	midpoint	midpoint	NOUN
ajst-28818	424	13	(	(	PUNCT
ajst-28818	424	14	depth	depth	NOUN
ajst-28818	424	15	600	600	NUM
ajst-28818	424	16	m	m	NOUN
ajst-28818	424	17	)	)	PUNCT
ajst-28818	424	18	of	of	ADP
ajst-28818	424	19	the	the	DET
ajst-28818	424	20	drill	drill	NOUN
ajst-28818	424	21	-	-	PUNCT
ajst-28818	424	22	string	string	NOUN
ajst-28818	424	23	in	in	ADP
ajst-28818	424	24	the	the	DET
ajst-28818	424	25	seawater	seawater	NOUN
ajst-28818	424	26	section	section	NOUN
ajst-28818	424	27	in	in	ADP
ajst-28818	424	28	figure	figure	NOUN
ajst-28818	424	29	11	11	NUM
ajst-28818	424	30	(	(	PUNCT
ajst-28818	424	31	d	d	NOUN
ajst-28818	424	32	)	)	PUNCT
ajst-28818	424	33	,	,	PUNCT
ajst-28818	424	34	the	the	DET
ajst-28818	424	35	platform	platform	NOUN
ajst-28818	424	36	returned	return	VERB
ajst-28818	424	37	to	to	ADP
ajst-28818	424	38	the	the	DET
ajst-28818	424	39	initial	initial	ADJ
ajst-28818	424	40	position	position	NOUN
ajst-28818	424	41	and	and	CCONJ
ajst-28818	424	42	the	the	DET
ajst-28818	424	43	speed	speed	NOUN
ajst-28818	424	44	was	be	AUX
ajst-28818	424	45	zero	zero	NUM
ajst-28818	424	46	at	at	ADP
ajst-28818	424	47	80	80	NUM
ajst-28818	424	48	s	s	NOUN
ajst-28818	424	49	and	and	CCONJ
ajst-28818	424	50	160	160	NUM
ajst-28818	424	51	s	s	NOUN
ajst-28818	424	52	,	,	PUNCT
ajst-28818	424	53	while	while	SCONJ
ajst-28818	424	54	the	the	DET
ajst-28818	424	55	drill	drill	NOUN
ajst-28818	424	56	-	-	PUNCT
ajst-28818	424	57	string	string	NOUN
ajst-28818	424	58	obviously	obviously	ADV
ajst-28818	424	59	lagged	lag	VERB
ajst-28818	424	60	behind	behind	ADP
ajst-28818	424	61	the	the	DET
ajst-28818	424	62	platform	platform	NOUN
ajst-28818	424	63	,	,	PUNCT
ajst-28818	424	64	and	and	CCONJ
ajst-28818	424	65	the	the	DET
ajst-28818	424	66	lag	lag	NOUN
ajst-28818	424	67	time	time	NOUN
ajst-28818	424	68	increased	increase	VERB
ajst-28818	424	69	with	with	ADP
ajst-28818	424	70	the	the	DET
ajst-28818	424	71	increase	increase	NOUN
ajst-28818	424	72	of	of	ADP
ajst-28818	424	73	the	the	DET
ajst-28818	424	74	slow	slow	ADJ
ajst-28818	424	75	drift	drift	NOUN
ajst-28818	424	76	amplitude	amplitude	NOUN
ajst-28818	424	77	.	.	PUNCT
ajst-28818	425	1	figure	figure	NOUN
ajst-28818	425	2	11	11	NUM
ajst-28818	425	3	(	(	PUNCT
ajst-28818	425	4	e	e	NOUN
ajst-28818	425	5	)	)	PUNCT
ajst-28818	425	6	is	be	AUX
ajst-28818	425	7	the	the	DET
ajst-28818	425	8	lateral	lateral	ADJ
ajst-28818	425	9	velocity	velocity	NOUN
ajst-28818	425	10	curve	curve	NOUN
ajst-28818	425	11	of	of	ADP
ajst-28818	425	12	the	the	DET
ajst-28818	425	13	midpoint	midpoint	NOUN
ajst-28818	425	14	of	of	ADP
ajst-28818	425	15	the	the	DET
ajst-28818	425	16	drillstring	drillstring	NOUN
ajst-28818	425	17	in	in	ADP
ajst-28818	425	18	seawater	seawater	NOUN
ajst-28818	425	19	section	section	NOUN
ajst-28818	425	20	.	.	PUNCT
ajst-28818	426	1	one	one	PRON
ajst-28818	426	2	can	can	AUX
ajst-28818	426	3	find	find	VERB
ajst-28818	426	4	that	that	SCONJ
ajst-28818	426	5	the	the	DET
ajst-28818	426	6	amplitude	amplitude	NOUN
ajst-28818	426	7	of	of	ADP
ajst-28818	426	8	the	the	DET
ajst-28818	426	9	transverse	transverse	NOUN
ajst-28818	426	10	velocity	velocity	NOUN
ajst-28818	426	11	fluctuations	fluctuation	NOUN
ajst-28818	426	12	increases	increase	VERB
ajst-28818	426	13	with	with	ADP
ajst-28818	426	14	the	the	DET
ajst-28818	426	15	amplitude	amplitude	NOUN
ajst-28818	426	16	of	of	ADP
ajst-28818	426	17	the	the	DET
ajst-28818	426	18	slow	slow	ADJ
ajst-28818	426	19	drift	drift	NOUN
ajst-28818	426	20	motion	motion	NOUN
ajst-28818	426	21	.	.	PUNCT
ajst-28818	427	1	figure	figure	NOUN
ajst-28818	427	2	11	11	NUM
ajst-28818	427	3	.	.	PUNCT
ajst-28818	428	1	lateral	lateral	ADJ
ajst-28818	428	2	time	time	NOUN
ajst-28818	428	3	-	-	PUNCT
ajst-28818	428	4	history	history	NOUN
ajst-28818	428	5	response	response	NOUN
ajst-28818	428	6	of	of	ADP
ajst-28818	428	7	drill	drill	NOUN
ajst-28818	428	8	-	-	PUNCT
ajst-28818	428	9	string	string	NOUN
ajst-28818	428	10	in	in	ADP
ajst-28818	428	11	seawater	seawater	NOUN
ajst-28818	428	12	section	section	NOUN
ajst-28818	428	13	fig	fig	NOUN
ajst-28818	428	14	.	.	PUNCT
ajst-28818	429	1	12	12	NUM
ajst-28818	429	2	shows	show	VERB
ajst-28818	429	3	the	the	DET
ajst-28818	429	4	axial	axial	ADJ
ajst-28818	429	5	time	time	NOUN
ajst-28818	429	6	-	-	PUNCT
ajst-28818	429	7	history	history	NOUN
ajst-28818	429	8	response	response	NOUN
ajst-28818	429	9	curve	curve	NOUN
ajst-28818	429	10	of	of	ADP
ajst-28818	429	11	the	the	DET
ajst-28818	429	12	top	top	NOUN
ajst-28818	429	13	of	of	ADP
ajst-28818	429	14	the	the	DET
ajst-28818	429	15	drill	drill	NOUN
ajst-28818	429	16	-	-	PUNCT
ajst-28818	429	17	string	string	NOUN
ajst-28818	429	18	.	.	PUNCT
ajst-28818	430	1	it	it	PRON
ajst-28818	430	2	can	can	AUX
ajst-28818	430	3	be	be	AUX
ajst-28818	430	4	seen	see	VERB
ajst-28818	430	5	from	from	ADP
ajst-28818	430	6	the	the	DET
ajst-28818	430	7	time	time	NOUN
ajst-28818	430	8	-	-	PUNCT
ajst-28818	430	9	history	history	NOUN
ajst-28818	430	10	response	response	NOUN
ajst-28818	430	11	of	of	ADP
ajst-28818	430	12	axial	axial	ADJ
ajst-28818	430	13	displacement	displacement	NOUN
ajst-28818	430	14	at	at	ADP
ajst-28818	430	15	the	the	DET
ajst-28818	430	16	top	top	NOUN
ajst-28818	430	17	of	of	ADP
ajst-28818	430	18	drill	drill	NOUN
ajst-28818	430	19	column	column	NOUN
ajst-28818	430	20	in	in	ADP
ajst-28818	430	21	fig	fig	NOUN
ajst-28818	430	22	.	.	PUNCT
ajst-28818	431	1	12	12	NUM
ajst-28818	431	2	(	(	PUNCT
ajst-28818	431	3	a	a	NOUN
ajst-28818	431	4	)	)	PUNCT
ajst-28818	431	5	that	that	SCONJ
ajst-28818	431	6	the	the	DET
ajst-28818	431	7	maximum	maximum	ADJ
ajst-28818	431	8	axial	axial	ADJ
ajst-28818	431	9	displacement	displacement	NOUN
ajst-28818	431	10	increases	increase	NOUN
ajst-28818	431	11	with	with	ADP
ajst-28818	431	12	the	the	DET
ajst-28818	431	13	increase	increase	NOUN
ajst-28818	431	14	of	of	ADP
ajst-28818	431	15	slow	slow	ADJ
ajst-28818	431	16	drift	drift	NOUN
ajst-28818	431	17	amplitude	amplitude	NOUN
ajst-28818	431	18	.	.	PUNCT
ajst-28818	432	1	this	this	PRON
ajst-28818	432	2	is	be	AUX
ajst-28818	432	3	because	because	SCONJ
ajst-28818	432	4	the	the	DET
ajst-28818	432	5	drilling	drilling	NOUN
ajst-28818	432	6	string	string	NOUN
ajst-28818	432	7	in	in	ADP
ajst-28818	432	8	seawater	seawater	NOUN
ajst-28818	432	9	segment	segment	NOUN
ajst-28818	432	10	is	be	AUX
ajst-28818	432	11	dragged	drag	VERB
ajst-28818	432	12	by	by	ADP
ajst-28818	432	13	the	the	DET
ajst-28818	432	14	platform	platform	NOUN
ajst-28818	432	15	,	,	PUNCT
ajst-28818	432	16	and	and	CCONJ
ajst-28818	432	17	the	the	DET
ajst-28818	432	18	axial	axial	ADJ
ajst-28818	432	19	displacement	displacement	NOUN
ajst-28818	432	20	is	be	AUX
ajst-28818	432	21	generated	generate	VERB
ajst-28818	432	22	under	under	ADP
ajst-28818	432	23	the	the	DET
ajst-28818	432	24	action	action	NOUN
ajst-28818	432	25	of	of	ADP
ajst-28818	432	26	vertical	vertical	ADJ
ajst-28818	432	27	and	and	CCONJ
ajst-28818	432	28	horizontal	horizontal	ADJ
ajst-28818	432	29	coupling	coupling	NOUN
ajst-28818	432	30	.	.	PUNCT
ajst-28818	433	1	however	however	ADV
ajst-28818	433	2	,	,	PUNCT
ajst-28818	433	3	the	the	DET
ajst-28818	433	4	slow	slow	ADJ
ajst-28818	433	5	drift	drift	NOUN
ajst-28818	433	6	amplitude	amplitude	NOUN
ajst-28818	433	7	of	of	ADP
ajst-28818	433	8	the	the	DET
ajst-28818	433	9	platform	platform	NOUN
ajst-28818	433	10	is	be	AUX
ajst-28818	433	11	not	not	PART
ajst-28818	433	12	proportional	proportional	ADJ
ajst-28818	433	13	to	to	ADP
ajst-28818	433	14	the	the	DET
ajst-28818	433	15	maximum	maximum	ADJ
ajst-28818	433	16	axial	axial	ADJ
ajst-28818	433	17	displacement	displacement	NOUN
ajst-28818	433	18	at	at	ADP
ajst-28818	433	19	the	the	DET
ajst-28818	433	20	top	top	NOUN
ajst-28818	433	21	of	of	ADP
ajst-28818	433	22	the	the	DET
ajst-28818	433	23	drill	drill	NOUN
ajst-28818	433	24	-	-	PUNCT
ajst-28818	433	25	string	string	NOUN
ajst-28818	433	26	.	.	PUNCT
ajst-28818	434	1	for	for	ADP
ajst-28818	434	2	a	a	DET
ajst-28818	434	3	slow	slow	ADJ
ajst-28818	434	4	drift	drift	NOUN
ajst-28818	434	5	amplitude	amplitude	NOUN
ajst-28818	434	6	of	of	ADP
ajst-28818	434	7	20	20	NUM
ajst-28818	434	8	m	m	NOUN
ajst-28818	434	9	,	,	PUNCT
ajst-28818	434	10	the	the	DET
ajst-28818	434	11	maximum	maximum	ADJ
ajst-28818	434	12	axial	axial	ADJ
ajst-28818	434	13	displacement	displacement	NOUN
ajst-28818	434	14	is	be	AUX
ajst-28818	434	15	3	3	NUM
ajst-28818	434	16	times	time	NOUN
ajst-28818	434	17	larger	large	ADJ
ajst-28818	434	18	than	than	ADP
ajst-28818	434	19	for	for	ADP
ajst-28818	434	20	a	a	DET
ajst-28818	434	21	slow	slow	ADJ
ajst-28818	434	22	drift	drift	NOUN
ajst-28818	434	23	amplitude	amplitude	NOUN
ajst-28818	434	24	of	of	ADP
ajst-28818	434	25	10	10	NUM
ajst-28818	434	26	m.	m.	NOUN
ajst-28818	434	27	fig	fig	NOUN
ajst-28818	434	28	.	.	PUNCT
ajst-28818	435	1	12(b	12(b	NUM
ajst-28818	435	2	)	)	PUNCT
ajst-28818	436	1	shows	show	VERB
ajst-28818	436	2	the	the	DET
ajst-28818	436	3	difference	difference	NOUN
ajst-28818	436	4	between	between	ADP
ajst-28818	436	5	the	the	DET
ajst-28818	436	6	axial	axial	ADJ
ajst-28818	436	7	displacement	displacement	NOUN
ajst-28818	436	8	at	at	ADP
ajst-28818	436	9	the	the	DET
ajst-28818	436	10	top	top	NOUN
ajst-28818	436	11	of	of	ADP
ajst-28818	436	12	the	the	DET
ajst-28818	436	13	drill	drill	NOUN
ajst-28818	436	14	-	-	PUNCT
ajst-28818	436	15	string	string	NOUN
ajst-28818	436	16	and	and	CCONJ
ajst-28818	436	17	the	the	DET
ajst-28818	436	18	platform	platform	NOUN
ajst-28818	436	19	,	,	PUNCT
ajst-28818	436	20	that	that	ADV
ajst-28818	436	21	is	is	ADV
ajst-28818	436	22	,	,	PUNCT
ajst-28818	436	23	the	the	DET
ajst-28818	436	24	expansion	expansion	NOUN
ajst-28818	436	25	of	of	ADP
ajst-28818	436	26	the	the	DET
ajst-28818	436	27	heave	heave	NOUN
ajst-28818	436	28	compensator	compensator	NOUN
ajst-28818	436	29	.	.	PUNCT
ajst-28818	437	1	it	it	PRON
ajst-28818	437	2	can	can	AUX
ajst-28818	437	3	be	be	AUX
ajst-28818	437	4	seen	see	VERB
ajst-28818	437	5	that	that	SCONJ
ajst-28818	437	6	the	the	DET
ajst-28818	437	7	maximum	maximum	ADJ
ajst-28818	437	8	expansion	expansion	NOUN
ajst-28818	437	9	increases	increase	NOUN
ajst-28818	437	10	as	as	ADP
ajst-28818	437	11	the	the	DET
ajst-28818	437	12	slow	slow	ADJ
ajst-28818	437	13	drift	drift	NOUN
ajst-28818	437	14	amplitude	amplitude	NOUN
ajst-28818	437	15	increases	increase	NOUN
ajst-28818	437	16	.	.	PUNCT
ajst-28818	438	1	therefore	therefore	ADV
ajst-28818	438	2	,	,	PUNCT
ajst-28818	438	3	when	when	SCONJ
ajst-28818	438	4	the	the	DET
ajst-28818	438	5	slow	slow	ADJ
ajst-28818	438	6	drift	drift	NOUN
ajst-28818	438	7	amplitude	amplitude	NOUN
ajst-28818	438	8	is	be	AUX
ajst-28818	438	9	large	large	ADJ
ajst-28818	438	10	,	,	PUNCT
ajst-28818	438	11	the	the	DET
ajst-28818	438	12	compensation	compensation	NOUN
ajst-28818	438	13	cylinder	cylinder	NOUN
ajst-28818	438	14	stroke	stroke	NOUN
ajst-28818	438	15	of	of	ADP
ajst-28818	438	16	the	the	DET
ajst-28818	438	17	heave	heave	NOUN
ajst-28818	438	18	compensator	compensator	NOUN
ajst-28818	438	19	should	should	AUX
ajst-28818	438	20	be	be	AUX
ajst-28818	438	21	increased	increase	VERB
ajst-28818	438	22	.	.	PUNCT
ajst-28818	439	1	295	295	NUM
ajst-28818	439	2	figure	figure	NOUN
ajst-28818	439	3	12	12	NUM
ajst-28818	439	4	.	.	PUNCT
ajst-28818	440	1	axial	axial	ADJ
ajst-28818	440	2	time	time	NOUN
ajst-28818	440	3	-	-	PUNCT
ajst-28818	440	4	history	history	NOUN
ajst-28818	440	5	response	response	NOUN
ajst-28818	440	6	of	of	ADP
ajst-28818	440	7	the	the	DET
ajst-28818	440	8	drill	drill	NOUN
ajst-28818	440	9	-	-	PUNCT
ajst-28818	440	10	string	string	NOUN
ajst-28818	440	11	top	top	NOUN
ajst-28818	440	12	:	:	PUNCT
ajst-28818	440	13	(	(	PUNCT
ajst-28818	440	14	a	a	X
ajst-28818	440	15	)	)	PUNCT
ajst-28818	440	16	displacement	displacement	NOUN
ajst-28818	440	17	,	,	PUNCT
ajst-28818	440	18	and	and	CCONJ
ajst-28818	440	19	(	(	PUNCT
ajst-28818	440	20	b	b	NOUN
ajst-28818	440	21	)	)	PUNCT
ajst-28818	440	22	relative	relative	ADJ
ajst-28818	440	23	displacement	displacement	NOUN
ajst-28818	440	24	between	between	ADP
ajst-28818	440	25	the	the	DET
ajst-28818	440	26	platform	platform	NOUN
ajst-28818	440	27	and	and	CCONJ
ajst-28818	440	28	the	the	DET
ajst-28818	440	29	drill	drill	NOUN
ajst-28818	440	30	-	-	PUNCT
ajst-28818	440	31	string	string	NOUN
ajst-28818	440	32	top	top	ADJ
ajst-28818	440	33	fig	fig	NOUN
ajst-28818	440	34	.	.	PUNCT
ajst-28818	441	1	13	13	NUM
ajst-28818	441	2	(	(	PUNCT
ajst-28818	441	3	a	a	NOUN
ajst-28818	441	4	)	)	PUNCT
ajst-28818	441	5	shows	show	VERB
ajst-28818	441	6	the	the	DET
ajst-28818	441	7	wob	wob	NOUN
ajst-28818	441	8	time	time	NOUN
ajst-28818	441	9	-	-	PUNCT
ajst-28818	441	10	history	history	NOUN
ajst-28818	441	11	response	response	NOUN
ajst-28818	441	12	diagram	diagram	NOUN
ajst-28818	441	13	.	.	PUNCT
ajst-28818	442	1	it	it	PRON
ajst-28818	442	2	can	can	AUX
ajst-28818	442	3	be	be	AUX
ajst-28818	442	4	found	find	VERB
ajst-28818	442	5	that	that	SCONJ
ajst-28818	442	6	the	the	DET
ajst-28818	442	7	amplitude	amplitude	NOUN
ajst-28818	442	8	of	of	ADP
ajst-28818	442	9	the	the	DET
ajst-28818	442	10	fluctuation	fluctuation	NOUN
ajst-28818	442	11	of	of	ADP
ajst-28818	442	12	the	the	DET
ajst-28818	442	13	bit	bit	NOUN
ajst-28818	442	14	pressure	pressure	NOUN
ajst-28818	442	15	increases	increase	NOUN
ajst-28818	442	16	with	with	ADP
ajst-28818	442	17	the	the	DET
ajst-28818	442	18	amplitude	amplitude	NOUN
ajst-28818	442	19	of	of	ADP
ajst-28818	442	20	the	the	DET
ajst-28818	442	21	slow	slow	ADJ
ajst-28818	442	22	drift	drift	NOUN
ajst-28818	442	23	.	.	PUNCT
ajst-28818	443	1	fig	fig	NOUN
ajst-28818	443	2	.	.	PUNCT
ajst-28818	444	1	13	13	NUM
ajst-28818	444	2	(	(	PUNCT
ajst-28818	444	3	b	b	NOUN
ajst-28818	444	4	)	)	PUNCT
ajst-28818	444	5	(	(	PUNCT
ajst-28818	444	6	d	d	X
ajst-28818	444	7	)	)	PUNCT
ajst-28818	444	8	shows	show	VERB
ajst-28818	444	9	the	the	DET
ajst-28818	444	10	response	response	NOUN
ajst-28818	444	11	curve	curve	NOUN
ajst-28818	444	12	of	of	ADP
ajst-28818	444	13	wob	wob	NOUN
ajst-28818	444	14	amplitude	amplitude	NOUN
ajst-28818	444	15	frequency	frequency	NOUN
ajst-28818	444	16	.	.	PUNCT
ajst-28818	445	1	it	it	PRON
ajst-28818	445	2	can	can	AUX
ajst-28818	445	3	be	be	AUX
ajst-28818	445	4	seen	see	VERB
ajst-28818	445	5	that	that	SCONJ
ajst-28818	445	6	there	there	PRON
ajst-28818	445	7	are	be	VERB
ajst-28818	445	8	two	two	NUM
ajst-28818	445	9	main	main	ADJ
ajst-28818	445	10	frequency	frequency	NOUN
ajst-28818	445	11	components	component	NOUN
ajst-28818	445	12	of	of	ADP
ajst-28818	445	13	the	the	DET
ajst-28818	445	14	bit	bit	NOUN
ajst-28818	445	15	pressure	pressure	NOUN
ajst-28818	445	16	,	,	PUNCT
ajst-28818	445	17	0.0125	0.0125	NUM
ajst-28818	445	18	hz	hz	NOUN
ajst-28818	445	19	and	and	CCONJ
ajst-28818	445	20	0.0875	0.0875	NUM
ajst-28818	445	21	hz	hz	NOUN
ajst-28818	445	22	,	,	PUNCT
ajst-28818	445	23	corresponding	correspond	VERB
ajst-28818	445	24	to	to	ADP
ajst-28818	445	25	the	the	DET
ajst-28818	445	26	frequency	frequency	NOUN
ajst-28818	445	27	of	of	ADP
ajst-28818	445	28	the	the	DET
ajst-28818	445	29	slow	slow	ADJ
ajst-28818	445	30	drift	drift	NOUN
ajst-28818	445	31	and	and	CCONJ
ajst-28818	445	32	the	the	DET
ajst-28818	445	33	heeling	heeling	NOUN
ajst-28818	445	34	motion	motion	NOUN
ajst-28818	445	35	of	of	ADP
ajst-28818	445	36	the	the	DET
ajst-28818	445	37	platform	platform	NOUN
ajst-28818	445	38	,	,	PUNCT
ajst-28818	445	39	respectively	respectively	ADV
ajst-28818	445	40	.	.	PUNCT
ajst-28818	446	1	fig	fig	NOUN
ajst-28818	446	2	.	.	PUNCT
ajst-28818	447	1	13	13	NUM
ajst-28818	447	2	(	(	PUNCT
ajst-28818	447	3	b	b	NOUN
ajst-28818	447	4	)	)	PUNCT
ajst-28818	447	5	(	(	PUNCT
ajst-28818	447	6	d	d	X
ajst-28818	447	7	)	)	PUNCT
ajst-28818	447	8	shows	show	VERB
ajst-28818	447	9	the	the	DET
ajst-28818	447	10	response	response	NOUN
ajst-28818	447	11	curve	curve	NOUN
ajst-28818	447	12	of	of	ADP
ajst-28818	447	13	wob	wob	NOUN
ajst-28818	447	14	amplitude	amplitude	NOUN
ajst-28818	447	15	frequency	frequency	NOUN
ajst-28818	447	16	.	.	PUNCT
ajst-28818	448	1	it	it	PRON
ajst-28818	448	2	can	can	AUX
ajst-28818	448	3	be	be	AUX
ajst-28818	448	4	seen	see	VERB
ajst-28818	448	5	that	that	SCONJ
ajst-28818	448	6	there	there	PRON
ajst-28818	448	7	are	be	VERB
ajst-28818	448	8	two	two	NUM
ajst-28818	448	9	main	main	ADJ
ajst-28818	448	10	frequency	frequency	NOUN
ajst-28818	448	11	components	component	NOUN
ajst-28818	448	12	of	of	ADP
ajst-28818	448	13	the	the	DET
ajst-28818	448	14	bit	bit	NOUN
ajst-28818	448	15	pressure	pressure	NOUN
ajst-28818	448	16	,	,	PUNCT
ajst-28818	448	17	0.0125	0.0125	NUM
ajst-28818	448	18	hz	hz	NOUN
ajst-28818	448	19	and	and	CCONJ
ajst-28818	448	20	0.0875	0.0875	NUM
ajst-28818	448	21	hz	hz	NOUN
ajst-28818	448	22	,	,	PUNCT
ajst-28818	448	23	corresponding	correspond	VERB
ajst-28818	448	24	to	to	ADP
ajst-28818	448	25	the	the	DET
ajst-28818	448	26	frequencies	frequency	NOUN
ajst-28818	448	27	of	of	ADP
ajst-28818	448	28	the	the	DET
ajst-28818	448	29	slow	slow	ADJ
ajst-28818	448	30	drift	drift	NOUN
ajst-28818	448	31	and	and	CCONJ
ajst-28818	448	32	the	the	DET
ajst-28818	448	33	heave	heave	ADJ
ajst-28818	448	34	motion	motion	NOUN
ajst-28818	448	35	of	of	ADP
ajst-28818	448	36	the	the	DET
ajst-28818	448	37	platform	platform	NOUN
ajst-28818	448	38	,	,	PUNCT
ajst-28818	448	39	respectively	respectively	ADV
ajst-28818	448	40	.	.	PUNCT
ajst-28818	449	1	the	the	DET
ajst-28818	449	2	amplitude	amplitude	NOUN
ajst-28818	449	3	of	of	ADP
ajst-28818	449	4	the	the	DET
ajst-28818	449	5	corresponding	corresponding	ADJ
ajst-28818	449	6	frequency	frequency	NOUN
ajst-28818	449	7	component	component	NOUN
ajst-28818	449	8	is	be	AUX
ajst-28818	449	9	basically	basically	ADV
ajst-28818	449	10	about	about	ADP
ajst-28818	449	11	7.53kn	7.53kn	NUM
ajst-28818	449	12	because	because	SCONJ
ajst-28818	449	13	the	the	DET
ajst-28818	449	14	heave	heave	NOUN
ajst-28818	449	15	motion	motion	NOUN
ajst-28818	449	16	is	be	AUX
ajst-28818	449	17	unchanged	unchanged	ADJ
ajst-28818	449	18	,	,	PUNCT
ajst-28818	449	19	while	while	SCONJ
ajst-28818	449	20	the	the	DET
ajst-28818	449	21	amplitude	amplitude	NOUN
ajst-28818	449	22	of	of	ADP
ajst-28818	449	23	the	the	DET
ajst-28818	449	24	corresponding	corresponding	ADJ
ajst-28818	449	25	frequency	frequency	NOUN
ajst-28818	449	26	component	component	NOUN
ajst-28818	449	27	of	of	ADP
ajst-28818	449	28	the	the	DET
ajst-28818	449	29	slow	slow	ADJ
ajst-28818	449	30	drift	drift	NOUN
ajst-28818	449	31	motion	motion	NOUN
ajst-28818	449	32	increases	increase	VERB
ajst-28818	449	33	with	with	ADP
ajst-28818	449	34	the	the	DET
ajst-28818	449	35	increase	increase	NOUN
ajst-28818	449	36	of	of	ADP
ajst-28818	449	37	the	the	DET
ajst-28818	449	38	slow	slow	ADJ
ajst-28818	449	39	drift	drift	NOUN
ajst-28818	449	40	amplitude	amplitude	NOUN
ajst-28818	449	41	,	,	PUNCT
ajst-28818	449	42	which	which	PRON
ajst-28818	449	43	is	be	AUX
ajst-28818	449	44	consistent	consistent	ADJ
ajst-28818	449	45	with	with	ADP
ajst-28818	449	46	the	the	DET
ajst-28818	449	47	axial	axial	ADJ
ajst-28818	449	48	displacement	displacement	NOUN
ajst-28818	449	49	of	of	ADP
ajst-28818	449	50	the	the	DET
ajst-28818	449	51	top	top	NOUN
ajst-28818	449	52	of	of	ADP
ajst-28818	449	53	the	the	DET
ajst-28818	449	54	drillstring	drillstring	NOUN
ajst-28818	449	55	.	.	PUNCT
ajst-28818	450	1	the	the	DET
ajst-28818	450	2	amplitude	amplitude	NOUN
ajst-28818	450	3	is	be	AUX
ajst-28818	450	4	not	not	PART
ajst-28818	450	5	proportional	proportional	ADJ
ajst-28818	450	6	to	to	ADP
ajst-28818	450	7	the	the	DET
ajst-28818	450	8	slow	slow	ADJ
ajst-28818	450	9	drift	drift	NOUN
ajst-28818	450	10	amplitude	amplitude	NOUN
ajst-28818	450	11	and	and	CCONJ
ajst-28818	450	12	the	the	DET
ajst-28818	450	13	increment	increment	NOUN
ajst-28818	450	14	increases	increase	VERB
ajst-28818	450	15	with	with	ADP
ajst-28818	450	16	the	the	DET
ajst-28818	450	17	slow	slow	ADJ
ajst-28818	450	18	drift	drift	NOUN
ajst-28818	450	19	amplitude	amplitude	NOUN
ajst-28818	450	20	.	.	PUNCT
ajst-28818	451	1	it	it	PRON
ajst-28818	451	2	can	can	AUX
ajst-28818	451	3	be	be	AUX
ajst-28818	451	4	seen	see	VERB
ajst-28818	451	5	that	that	SCONJ
ajst-28818	451	6	the	the	DET
ajst-28818	451	7	slow	slow	ADJ
ajst-28818	451	8	drift	drift	NOUN
ajst-28818	451	9	movement	movement	NOUN
ajst-28818	451	10	of	of	ADP
ajst-28818	451	11	the	the	DET
ajst-28818	451	12	platform	platform	NOUN
ajst-28818	451	13	not	not	PART
ajst-28818	451	14	only	only	ADV
ajst-28818	451	15	has	have	VERB
ajst-28818	451	16	a	a	DET
ajst-28818	451	17	great	great	ADJ
ajst-28818	451	18	impact	impact	NOUN
ajst-28818	451	19	on	on	ADP
ajst-28818	451	20	the	the	DET
ajst-28818	451	21	drill	drill	NOUN
ajst-28818	451	22	-	-	PUNCT
ajst-28818	451	23	string	string	NOUN
ajst-28818	451	24	in	in	ADP
ajst-28818	451	25	the	the	DET
ajst-28818	451	26	seawater	seawater	NOUN
ajst-28818	451	27	section	section	NOUN
ajst-28818	451	28	,	,	PUNCT
ajst-28818	451	29	but	but	CCONJ
ajst-28818	451	30	also	also	ADV
ajst-28818	451	31	can	can	AUX
ajst-28818	451	32	make	make	VERB
ajst-28818	451	33	the	the	DET
ajst-28818	451	34	downhole	downhole	NOUN
ajst-28818	451	35	bit	bit	NOUN
ajst-28818	451	36	pressure	pressure	NOUN
ajst-28818	451	37	fluctuate	fluctuate	NOUN
ajst-28818	451	38	through	through	ADP
ajst-28818	451	39	the	the	DET
ajst-28818	451	40	vertical	vertical	ADJ
ajst-28818	451	41	and	and	CCONJ
ajst-28818	451	42	horizontal	horizontal	ADJ
ajst-28818	451	43	coupling	coupling	NOUN
ajst-28818	451	44	,	,	PUNCT
ajst-28818	451	45	which	which	PRON
ajst-28818	451	46	further	far	ADV
ajst-28818	451	47	affects	affect	VERB
ajst-28818	451	48	the	the	DET
ajst-28818	451	49	vibration	vibration	NOUN
ajst-28818	451	50	of	of	ADP
ajst-28818	451	51	the	the	DET
ajst-28818	451	52	whole	whole	ADJ
ajst-28818	451	53	drill	drill	NOUN
ajst-28818	451	54	-	-	PUNCT
ajst-28818	451	55	string	string	NOUN
ajst-28818	451	56	system	system	NOUN
ajst-28818	451	57	.	.	PUNCT
ajst-28818	452	1	figure	figure	NOUN
ajst-28818	452	2	13	13	NUM
ajst-28818	452	3	.	.	PUNCT
ajst-28818	453	1	wob	wob	NOUN
ajst-28818	453	2	time	time	PROPN
ajst-28818	453	3	history	history	NOUN
ajst-28818	453	4	curve	curve	NOUN
ajst-28818	453	5	and	and	CCONJ
ajst-28818	453	6	amplitude	amplitude	NOUN
ajst-28818	453	7	-	-	PUNCT
ajst-28818	453	8	frequency	frequency	NOUN
ajst-28818	453	9	response	response	NOUN
ajst-28818	453	10	curve	curve	NOUN
ajst-28818	453	11	fig	fig	NOUN
ajst-28818	453	12	.	.	PUNCT
ajst-28818	454	1	14	14	NUM
ajst-28818	454	2	shows	show	VERB
ajst-28818	454	3	the	the	DET
ajst-28818	454	4	torsional	torsional	ADJ
ajst-28818	454	5	response	response	NOUN
ajst-28818	454	6	of	of	ADP
ajst-28818	454	7	the	the	DET
ajst-28818	454	8	bit	bit	NOUN
ajst-28818	454	9	,	,	PUNCT
ajst-28818	454	10	and	and	CCONJ
ajst-28818	454	11	fig	fig	NOUN
ajst-28818	454	12	.	.	PUNCT
ajst-28818	455	1	14	14	NUM
ajst-28818	455	2	(	(	PUNCT
ajst-28818	455	3	a	a	NOUN
ajst-28818	455	4	)	)	PUNCT
ajst-28818	455	5	(	(	PUNCT
ajst-28818	455	6	c	c	X
ajst-28818	455	7	)	)	PUNCT
ajst-28818	455	8	shows	show	VERB
ajst-28818	455	9	the	the	DET
ajst-28818	455	10	time	time	NOUN
ajst-28818	455	11	-	-	PUNCT
ajst-28818	455	12	history	history	NOUN
ajst-28818	455	13	response	response	NOUN
ajst-28818	455	14	curves	curve	NOUN
ajst-28818	455	15	of	of	ADP
ajst-28818	455	16	friction	friction	NOUN
ajst-28818	455	17	torque	torque	NOUN
ajst-28818	455	18	,	,	PUNCT
ajst-28818	455	19	torsional	torsional	ADJ
ajst-28818	455	20	displacement	displacement	NOUN
ajst-28818	455	21	and	and	CCONJ
ajst-28818	455	22	rotational	rotational	ADJ
ajst-28818	455	23	speed	speed	NOUN
ajst-28818	455	24	of	of	ADP
ajst-28818	455	25	the	the	DET
ajst-28818	455	26	bit	bit	NOUN
ajst-28818	455	27	,	,	PUNCT
ajst-28818	455	28	respectively	respectively	ADV
ajst-28818	455	29	.	.	PUNCT
ajst-28818	456	1	it	it	PRON
ajst-28818	456	2	can	can	AUX
ajst-28818	456	3	be	be	AUX
ajst-28818	456	4	found	find	VERB
ajst-28818	456	5	that	that	SCONJ
ajst-28818	456	6	the	the	DET
ajst-28818	456	7	bit	bit	NOUN
ajst-28818	456	8	changes	change	VERB
ajst-28818	456	9	back	back	ADV
ajst-28818	456	10	and	and	CCONJ
ajst-28818	456	11	forth	forth	ADV
ajst-28818	456	12	between	between	ADP
ajst-28818	456	13	viscous	viscous	ADJ
ajst-28818	456	14	and	and	CCONJ
ajst-28818	456	15	slip	slip	NOUN
ajst-28818	456	16	-	-	PUNCT
ajst-28818	456	17	off	off	ADP
ajst-28818	456	18	states	state	NOUN
ajst-28818	456	19	,	,	PUNCT
ajst-28818	456	20	and	and	CCONJ
ajst-28818	456	21	the	the	DET
ajst-28818	456	22	maximum	maximum	ADJ
ajst-28818	456	23	rotational	rotational	ADJ
ajst-28818	456	24	speed	speed	NOUN
ajst-28818	456	25	is	be	AUX
ajst-28818	456	26	more	more	ADJ
ajst-28818	456	27	than	than	ADP
ajst-28818	456	28	18	18	NUM
ajst-28818	456	29	rad	rad	NOUN
ajst-28818	456	30	/	/	SYM
ajst-28818	456	31	s	s	PROPN
ajst-28818	456	32	,	,	PUNCT
ajst-28818	456	33	which	which	PRON
ajst-28818	456	34	is	be	AUX
ajst-28818	456	35	nearly	nearly	ADV
ajst-28818	456	36	4	4	NUM
ajst-28818	456	37	times	time	NOUN
ajst-28818	456	38	the	the	DET
ajst-28818	456	39	rotational	rotational	ADJ
ajst-28818	456	40	speed	speed	NOUN
ajst-28818	456	41	of	of	ADP
ajst-28818	456	42	the	the	DET
ajst-28818	456	43	turntable	turntable	NOUN
ajst-28818	456	44	.	.	PUNCT
ajst-28818	457	1	it	it	PRON
ajst-28818	457	2	can	can	AUX
ajst-28818	457	3	be	be	AUX
ajst-28818	457	4	found	find	VERB
ajst-28818	457	5	that	that	SCONJ
ajst-28818	457	6	the	the	DET
ajst-28818	457	7	twist	twist	ADJ
ajst-28818	457	8	response	response	NOUN
ajst-28818	457	9	of	of	ADP
ajst-28818	457	10	the	the	DET
ajst-28818	457	11	bit	bit	NOUN
ajst-28818	457	12	varies	vary	VERB
ajst-28818	457	13	for	for	ADP
ajst-28818	457	14	different	different	ADJ
ajst-28818	457	15	values	value	NOUN
ajst-28818	457	16	of	of	ADP
ajst-28818	457	17	the	the	DET
ajst-28818	457	18	slow	slow	ADJ
ajst-28818	457	19	drift	drift	NOUN
ajst-28818	457	20	amplitude	amplitude	NOUN
ajst-28818	457	21	.	.	PUNCT
ajst-28818	458	1	fig	fig	NOUN
ajst-28818	458	2	.	.	PUNCT
ajst-28818	459	1	14	14	NUM
ajst-28818	459	2	(	(	PUNCT
ajst-28818	459	3	d	d	NOUN
ajst-28818	459	4	)	)	PUNCT
ajst-28818	459	5	(	(	PUNCT
ajst-28818	459	6	f	f	X
ajst-28818	459	7	)	)	PUNCT
ajst-28818	459	8	shows	show	VERB
ajst-28818	459	9	the	the	DET
ajst-28818	459	10	response	response	NOUN
ajst-28818	459	11	curve	curve	NOUN
ajst-28818	459	12	of	of	ADP
ajst-28818	459	13	bit	bit	NOUN
ajst-28818	459	14	torsion	torsion	NOUN
ajst-28818	459	15	amplitude	amplitude	NOUN
ajst-28818	459	16	and	and	CCONJ
ajst-28818	459	17	frequency	frequency	NOUN
ajst-28818	459	18	,	,	PUNCT
ajst-28818	459	19	where	where	SCONJ
ajst-28818	459	20	the	the	DET
ajst-28818	459	21	turntable	turntable	ADJ
ajst-28818	459	22	rotary	rotary	NOUN
ajst-28818	459	23	speed	speed	NOUN
ajst-28818	459	24	is	be	AUX
ajst-28818	459	25	5	5	NUM
ajst-28818	459	26	rad	rad	NOUN
ajst-28818	459	27	/	/	SYM
ajst-28818	459	28	s.	s.	PROPN
ajst-28818	459	29	it	it	PRON
ajst-28818	459	30	can	can	AUX
ajst-28818	459	31	be	be	AUX
ajst-28818	459	32	found	find	VERB
ajst-28818	459	33	that	that	SCONJ
ajst-28818	459	34	there	there	PRON
ajst-28818	459	35	is	be	VERB
ajst-28818	459	36	a	a	DET
ajst-28818	459	37	dominant	dominant	ADJ
ajst-28818	459	38	frequency	frequency	NOUN
ajst-28818	459	39	component	component	NOUN
ajst-28818	459	40	of	of	ADP
ajst-28818	459	41	0.125	0.125	NUM
ajst-28818	459	42	hz	hz	NOUN
ajst-28818	459	43	,	,	PUNCT
ajst-28818	459	44	whose	whose	DET
ajst-28818	459	45	amplitude	amplitude	NOUN
ajst-28818	459	46	decreases	decrease	VERB
ajst-28818	459	47	with	with	ADP
ajst-28818	459	48	increasing	increase	VERB
ajst-28818	459	49	slow	slow	ADJ
ajst-28818	459	50	drift	drift	NOUN
ajst-28818	459	51	amplitude	amplitude	NOUN
ajst-28818	459	52	.	.	PUNCT
ajst-28818	460	1	fig	fig	NOUN
ajst-28818	460	2	.	.	PUNCT
ajst-28818	461	1	14	14	NUM
ajst-28818	461	2	(	(	PUNCT
ajst-28818	461	3	g	g	NOUN
ajst-28818	461	4	)	)	PUNCT
ajst-28818	461	5	(	(	PUNCT
ajst-28818	461	6	i	i	NOUN
ajst-28818	461	7	)	)	PUNCT
ajst-28818	461	8	shows	show	VERB
ajst-28818	461	9	the	the	DET
ajst-28818	461	10	phase	phase	NOUN
ajst-28818	461	11	diagram	diagram	NOUN
ajst-28818	461	12	and	and	CCONJ
ajst-28818	461	13	the	the	DET
ajst-28818	461	14	pointcaré	pointcaré	NOUN
ajst-28818	461	15	map	map	NOUN
ajst-28818	461	16	of	of	ADP
ajst-28818	461	17	the	the	DET
ajst-28818	461	18	bit	bit	NOUN
ajst-28818	461	19	torsion	torsion	NOUN
ajst-28818	461	20	.	.	PUNCT
ajst-28818	462	1	it	it	PRON
ajst-28818	462	2	can	can	AUX
ajst-28818	462	3	be	be	AUX
ajst-28818	462	4	found	find	VERB
ajst-28818	462	5	that	that	SCONJ
ajst-28818	462	6	the	the	DET
ajst-28818	462	7	bit	bit	NOUN
ajst-28818	462	8	rotation	rotation	NOUN
ajst-28818	462	9	of	of	ADP
ajst-28818	462	10	the	the	DET
ajst-28818	462	11	riser	riser	NOUN
ajst-28818	462	12	free	free	ADJ
ajst-28818	462	13	drilling	drilling	NOUN
ajst-28818	462	14	string	string	NOUN
ajst-28818	462	15	is	be	AUX
ajst-28818	462	16	characterized	characterize	VERB
ajst-28818	462	17	by	by	ADP
ajst-28818	462	18	chaos	chaos	NOUN
ajst-28818	462	19	,	,	PUNCT
ajst-28818	462	20	which	which	PRON
ajst-28818	462	21	is	be	AUX
ajst-28818	462	22	enhanced	enhance	VERB
ajst-28818	462	23	with	with	ADP
ajst-28818	462	24	the	the	DET
ajst-28818	462	25	increase	increase	NOUN
ajst-28818	462	26	of	of	ADP
ajst-28818	462	27	the	the	DET
ajst-28818	462	28	slow	slow	ADJ
ajst-28818	462	29	drift	drift	NOUN
ajst-28818	462	30	amplitude	amplitude	NOUN
ajst-28818	462	31	.	.	PUNCT
ajst-28818	463	1	for	for	ADP
ajst-28818	463	2	a	a	DET
ajst-28818	463	3	value	value	NOUN
ajst-28818	463	4	of	of	ADP
ajst-28818	463	5	the	the	DET
ajst-28818	463	6	slow	slow	ADJ
ajst-28818	463	7	drift	drift	NOUN
ajst-28818	463	8	amplitude	amplitude	NOUN
ajst-28818	463	9	of	of	ADP
ajst-28818	463	10	10	10	NUM
ajst-28818	463	11	m	m	NOUN
ajst-28818	463	12	,	,	PUNCT
ajst-28818	463	13	the	the	DET
ajst-28818	463	14	phase	phase	NOUN
ajst-28818	463	15	diagram	diagram	NOUN
ajst-28818	463	16	shows	show	VERB
ajst-28818	463	17	296	296	NUM
ajst-28818	463	18	multiple	multiple	ADJ
ajst-28818	463	19	loops	loop	NOUN
ajst-28818	463	20	,	,	PUNCT
ajst-28818	463	21	while	while	SCONJ
ajst-28818	463	22	the	the	DET
ajst-28818	463	23	other	other	ADJ
ajst-28818	463	24	two	two	NUM
ajst-28818	463	25	do	do	AUX
ajst-28818	463	26	not	not	PART
ajst-28818	463	27	have	have	VERB
ajst-28818	463	28	obvious	obvious	ADJ
ajst-28818	463	29	fixed	fix	VERB
ajst-28818	463	30	loop	loop	NOUN
ajst-28818	463	31	trajectories	trajectory	NOUN
ajst-28818	463	32	and	and	CCONJ
ajst-28818	463	33	have	have	VERB
ajst-28818	463	34	stronger	strong	ADJ
ajst-28818	463	35	nonlinear	nonlinear	ADJ
ajst-28818	463	36	features	feature	NOUN
ajst-28818	463	37	.	.	PUNCT
ajst-28818	464	1	figure	figure	VERB
ajst-28818	464	2	14	14	NUM
ajst-28818	464	3	.	.	PUNCT
ajst-28818	465	1	bit	bit	NOUN
ajst-28818	465	2	torsional	torsional	ADJ
ajst-28818	465	3	response	response	NOUN
ajst-28818	465	4	:	:	PUNCT
ajst-28818	465	5	(	(	PUNCT
ajst-28818	465	6	a	a	X
ajst-28818	465	7	)	)	PUNCT
ajst-28818	465	8	friction	friction	NOUN
ajst-28818	465	9	torque	torque	NOUN
ajst-28818	465	10	,	,	PUNCT
ajst-28818	465	11	(	(	PUNCT
ajst-28818	465	12	b	b	NOUN
ajst-28818	465	13	)	)	PUNCT
ajst-28818	465	14	displacement	displacement	NOUN
ajst-28818	465	15	,	,	PUNCT
ajst-28818	465	16	(	(	PUNCT
ajst-28818	465	17	c	c	NOUN
ajst-28818	465	18	)	)	PUNCT
ajst-28818	465	19	speed	speed	NOUN
ajst-28818	465	20	,	,	PUNCT
ajst-28818	465	21	(	(	PUNCT
ajst-28818	465	22	d)-(i	d)-(i	NOUN
ajst-28818	465	23	)	)	PUNCT
ajst-28818	465	24	speed	speed	NOUN
ajst-28818	465	25	amplitude	amplitude	NOUN
ajst-28818	465	26	-	-	PUNCT
ajst-28818	465	27	frequency	frequency	NOUN
ajst-28818	465	28	response	response	NOUN
ajst-28818	465	29	,	,	PUNCT
ajst-28818	465	30	phase	phase	NOUN
ajst-28818	465	31	diagram	diagram	NOUN
ajst-28818	465	32	and	and	CCONJ
ajst-28818	465	33	poincaré	poincaré	PROPN
ajst-28818	465	34	map	map	VERB
ajst-28818	465	35	fig	fig	PROPN
ajst-28818	465	36	.	.	PUNCT
ajst-28818	466	1	15	15	NUM
ajst-28818	466	2	shows	show	VERB
ajst-28818	466	3	the	the	DET
ajst-28818	466	4	torsional	torsional	ADJ
ajst-28818	466	5	response	response	NOUN
ajst-28818	466	6	at	at	ADP
ajst-28818	466	7	the	the	DET
ajst-28818	466	8	midpoint	midpoint	NOUN
ajst-28818	466	9	of	of	ADP
ajst-28818	466	10	the	the	DET
ajst-28818	466	11	drill	drill	NOUN
ajst-28818	466	12	-	-	PUNCT
ajst-28818	466	13	string	string	NOUN
ajst-28818	466	14	(	(	PUNCT
ajst-28818	466	15	depth	depth	NOUN
ajst-28818	466	16	1250	1250	NUM
ajst-28818	466	17	m	m	NOUN
ajst-28818	466	18	)	)	PUNCT
ajst-28818	466	19	.	.	PUNCT
ajst-28818	467	1	it	it	PRON
ajst-28818	467	2	can	can	AUX
ajst-28818	467	3	be	be	AUX
ajst-28818	467	4	found	find	VERB
ajst-28818	467	5	that	that	SCONJ
ajst-28818	467	6	the	the	DET
ajst-28818	467	7	response	response	NOUN
ajst-28818	467	8	is	be	AUX
ajst-28818	467	9	more	more	ADV
ajst-28818	467	10	complex	complex	ADJ
ajst-28818	467	11	than	than	ADP
ajst-28818	467	12	that	that	PRON
ajst-28818	467	13	of	of	ADP
ajst-28818	467	14	the	the	DET
ajst-28818	467	15	drill	drill	NOUN
ajst-28818	467	16	bit	bit	NOUN
ajst-28818	467	17	.	.	PUNCT
ajst-28818	468	1	from	from	ADP
ajst-28818	468	2	the	the	DET
ajst-28818	468	3	amplitude	amplitude	NOUN
ajst-28818	468	4	frequency	frequency	NOUN
ajst-28818	468	5	response	response	NOUN
ajst-28818	468	6	curve	curve	NOUN
ajst-28818	468	7	of	of	ADP
ajst-28818	468	8	figure	figure	NOUN
ajst-28818	468	9	15	15	NUM
ajst-28818	468	10	(	(	PUNCT
ajst-28818	468	11	b	b	NOUN
ajst-28818	468	12	)	)	PUNCT
ajst-28818	468	13	(	(	PUNCT
ajst-28818	468	14	d	d	NOUN
ajst-28818	468	15	)	)	PUNCT
ajst-28818	468	16	,	,	PUNCT
ajst-28818	468	17	it	it	PRON
ajst-28818	468	18	is	be	AUX
ajst-28818	468	19	found	find	VERB
ajst-28818	468	20	that	that	SCONJ
ajst-28818	468	21	there	there	PRON
ajst-28818	468	22	is	be	VERB
ajst-28818	468	23	an	an	DET
ajst-28818	468	24	additional	additional	ADJ
ajst-28818	468	25	high	high	ADJ
ajst-28818	468	26	-	-	PUNCT
ajst-28818	468	27	energy	energy	NOUN
ajst-28818	468	28	frequency	frequency	NOUN
ajst-28818	468	29	component	component	NOUN
ajst-28818	468	30	of	of	ADP
ajst-28818	468	31	0.663	0.663	NUM
ajst-28818	468	32	hz	hz	NOUN
ajst-28818	468	33	.	.	PUNCT
ajst-28818	469	1	however	however	ADV
ajst-28818	469	2	,	,	PUNCT
ajst-28818	469	3	the	the	DET
ajst-28818	469	4	amplitude	amplitude	NOUN
ajst-28818	469	5	of	of	ADP
ajst-28818	469	6	the	the	DET
ajst-28818	469	7	0.125	0.125	NUM
ajst-28818	469	8	hz	hz	VERB
ajst-28818	469	9	297	297	NUM
ajst-28818	469	10	frequency	frequency	NOUN
ajst-28818	469	11	component	component	NOUN
ajst-28818	469	12	decreased	decrease	VERB
ajst-28818	469	13	greatly	greatly	ADV
ajst-28818	469	14	,	,	PUNCT
ajst-28818	469	15	and	and	CCONJ
ajst-28818	469	16	the	the	DET
ajst-28818	469	17	frequency	frequency	NOUN
ajst-28818	469	18	of	of	ADP
ajst-28818	469	19	fig	fig	NOUN
ajst-28818	469	20	.	.	PUNCT
ajst-28818	470	1	15	15	NUM
ajst-28818	470	2	(	(	PUNCT
ajst-28818	470	3	b	b	NOUN
ajst-28818	470	4	)	)	PUNCT
ajst-28818	470	5	and	and	CCONJ
ajst-28818	470	6	(	(	PUNCT
ajst-28818	470	7	d	d	X
ajst-28818	470	8	)	)	PUNCT
ajst-28818	470	9	decreased	decrease	VERB
ajst-28818	470	10	slightly	slightly	ADV
ajst-28818	470	11	to	to	ADP
ajst-28818	470	12	0.121	0.121	NUM
ajst-28818	470	13	hz	hz	NOUN
ajst-28818	470	14	.	.	PUNCT
ajst-28818	471	1	it	it	PRON
ajst-28818	471	2	can	can	AUX
ajst-28818	471	3	be	be	AUX
ajst-28818	471	4	found	find	VERB
ajst-28818	471	5	from	from	ADP
ajst-28818	471	6	the	the	DET
ajst-28818	471	7	torsive	torsive	ADJ
ajst-28818	471	8	phase	phase	NOUN
ajst-28818	471	9	diagram	diagram	NOUN
ajst-28818	471	10	and	and	CCONJ
ajst-28818	471	11	poincaré	poincaré	PROPN
ajst-28818	471	12	map	map	NOUN
ajst-28818	471	13	of	of	ADP
ajst-28818	471	14	the	the	DET
ajst-28818	471	15	drill	drill	NOUN
ajst-28818	471	16	-	-	PUNCT
ajst-28818	471	17	string	string	NOUN
ajst-28818	471	18	in	in	ADP
ajst-28818	471	19	fig	fig	NOUN
ajst-28818	471	20	.	.	PUNCT
ajst-28818	472	1	15	15	NUM
ajst-28818	472	2	(	(	PUNCT
ajst-28818	472	3	e	e	NOUN
ajst-28818	472	4	)	)	PUNCT
ajst-28818	472	5	(	(	PUNCT
ajst-28818	472	6	g	g	NOUN
ajst-28818	472	7	)	)	PUNCT
ajst-28818	472	8	that	that	SCONJ
ajst-28818	472	9	the	the	DET
ajst-28818	472	10	torsive	torsive	ADJ
ajst-28818	472	11	vibration	vibration	NOUN
ajst-28818	472	12	also	also	ADV
ajst-28818	472	13	has	have	VERB
ajst-28818	472	14	chaotic	chaotic	ADJ
ajst-28818	472	15	characteristics	characteristic	NOUN
ajst-28818	472	16	and	and	CCONJ
ajst-28818	472	17	is	be	AUX
ajst-28818	472	18	enhanced	enhance	VERB
ajst-28818	472	19	with	with	ADP
ajst-28818	472	20	the	the	DET
ajst-28818	472	21	increase	increase	NOUN
ajst-28818	472	22	of	of	ADP
ajst-28818	472	23	the	the	DET
ajst-28818	472	24	slow	slow	ADJ
ajst-28818	472	25	drift	drift	NOUN
ajst-28818	472	26	amplitude	amplitude	NOUN
ajst-28818	472	27	.	.	PUNCT
ajst-28818	473	1	figure	figure	NOUN
ajst-28818	473	2	15	15	NUM
ajst-28818	473	3	.	.	PUNCT
ajst-28818	474	1	torsion	torsion	NOUN
ajst-28818	474	2	-	-	PUNCT
ajst-28818	474	3	response	response	NOUN
ajst-28818	474	4	of	of	ADP
ajst-28818	474	5	drill	drill	NOUN
ajst-28818	474	6	-	-	PUNCT
ajst-28818	474	7	string	string	NOUN
ajst-28818	474	8	at	at	ADP
ajst-28818	474	9	1250	1250	NUM
ajst-28818	474	10	m	m	NOUN
ajst-28818	474	11	depth	depth	NOUN
ajst-28818	474	12	:	:	PUNCT
ajst-28818	474	13	(	(	PUNCT
ajst-28818	474	14	a	a	X
ajst-28818	474	15	)	)	PUNCT
ajst-28818	474	16	rotational	rotational	ADJ
ajst-28818	474	17	speed	speed	NOUN
ajst-28818	474	18	,	,	PUNCT
ajst-28818	474	19	(	(	PUNCT
ajst-28818	474	20	b)-(g	b)-(g	NOUN
ajst-28818	474	21	)	)	PUNCT
ajst-28818	474	22	amplitude	amplitude	NOUN
ajst-28818	474	23	-	-	PUNCT
ajst-28818	474	24	frequency	frequency	NOUN
ajst-28818	474	25	response	response	NOUN
ajst-28818	474	26	,	,	PUNCT
ajst-28818	474	27	phase	phase	NOUN
ajst-28818	474	28	diagram	diagram	NOUN
ajst-28818	474	29	and	and	CCONJ
ajst-28818	474	30	poincaré	poincaré	PROPN
ajst-28818	474	31	map	map	VERB
ajst-28818	474	32	3.4	3.4	NUM
ajst-28818	474	33	.	.	PUNCT
ajst-28818	475	1	the	the	DET
ajst-28818	475	2	influence	influence	NOUN
ajst-28818	475	3	of	of	ADP
ajst-28818	475	4	different	different	ADJ
ajst-28818	475	5	slow	slow	ADJ
ajst-28818	475	6	drift	drift	NOUN
ajst-28818	475	7	motion	motion	NOUN
ajst-28818	475	8	frequencies	frequency	NOUN
ajst-28818	475	9	the	the	DET
ajst-28818	475	10	platform	platform	NOUN
ajst-28818	475	11	is	be	AUX
ajst-28818	475	12	assumed	assume	VERB
ajst-28818	475	13	to	to	PART
ajst-28818	475	14	be	be	AUX
ajst-28818	475	15	located	locate	VERB
ajst-28818	475	16	at	at	ADP
ajst-28818	475	17	u	u	NOUN
ajst-28818	475	18	=	=	PROPN
ajst-28818	475	19	5	5	NUM
ajst-28818	475	20	m	m	NOUN
ajst-28818	475	21	at	at	ADP
ajst-28818	475	22	the	the	DET
ajst-28818	475	23	initial	initial	ADJ
ajst-28818	475	24	time	time	NOUN
ajst-28818	475	25	with	with	ADP
ajst-28818	475	26	a	a	DET
ajst-28818	475	27	slow	slow	ADJ
ajst-28818	475	28	drift	drift	NOUN
ajst-28818	475	29	amplitude	amplitude	NOUN
ajst-28818	475	30	of	of	ADP
ajst-28818	475	31	15	15	NUM
ajst-28818	475	32	m.	m.	NOUN
ajst-28818	475	33	the	the	DET
ajst-28818	475	34	platform	platform	NOUN
ajst-28818	475	35	performs	perform	VERB
ajst-28818	475	36	slow	slow	ADJ
ajst-28818	475	37	drift	drift	NOUN
ajst-28818	475	38	motion	motion	NOUN
ajst-28818	475	39	at	at	ADP
ajst-28818	475	40	5	5	NUM
ajst-28818	475	41	-	-	SYM
ajst-28818	475	42	35	35	NUM
ajst-28818	475	43	m	m	NOUN
ajst-28818	475	44	,	,	PUNCT
ajst-28818	475	45	respectively	respectively	ADV
ajst-28818	475	46	,	,	PUNCT
ajst-28818	475	47	and	and	CCONJ
ajst-28818	475	48	takes	take	VERB
ajst-28818	475	49	different	different	ADJ
ajst-28818	475	50	slow	slow	ADJ
ajst-28818	475	51	drift	drift	NOUN
ajst-28818	475	52	periods	period	NOUN
ajst-28818	475	53	of	of	ADP
ajst-28818	475	54	40s	40	NOUN
ajst-28818	475	55	,	,	PUNCT
ajst-28818	475	56	80s	80	NOUN
ajst-28818	475	57	and	and	CCONJ
ajst-28818	475	58	120s	120s	PROPN
ajst-28818	475	59	.	.	PUNCT
ajst-28818	476	1	the	the	DET
ajst-28818	476	2	platform	platform	NOUN
ajst-28818	476	3	heave	heave	VERB
ajst-28818	476	4	motion	motion	NOUN
ajst-28818	476	5	is	be	AUX
ajst-28818	476	6	consistent	consistent	ADJ
ajst-28818	476	7	with	with	ADP
ajst-28818	476	8	2.3	2.3	NUM
ajst-28818	476	9	.	.	PUNCT
ajst-28818	477	1	fig	fig	NOUN
ajst-28818	477	2	.	.	PUNCT
ajst-28818	478	1	16	16	NUM
ajst-28818	478	2	shows	show	VERB
ajst-28818	478	3	the	the	DET
ajst-28818	478	4	lateral	lateral	ADJ
ajst-28818	478	5	time	time	NOUN
ajst-28818	478	6	-	-	PUNCT
ajst-28818	478	7	history	history	NOUN
ajst-28818	478	8	response	response	NOUN
ajst-28818	478	9	diagram	diagram	NOUN
ajst-28818	478	10	of	of	ADP
ajst-28818	478	11	the	the	DET
ajst-28818	478	12	drill	drill	NOUN
ajst-28818	478	13	-	-	PUNCT
ajst-28818	478	14	string	string	NOUN
ajst-28818	478	15	in	in	ADP
ajst-28818	478	16	the	the	DET
ajst-28818	478	17	seawater	seawater	NOUN
ajst-28818	478	18	section	section	NOUN
ajst-28818	478	19	.	.	PUNCT
ajst-28818	479	1	it	it	PRON
ajst-28818	479	2	can	can	AUX
ajst-28818	479	3	be	be	AUX
ajst-28818	479	4	found	find	VERB
ajst-28818	479	5	that	that	SCONJ
ajst-28818	479	6	the	the	DET
ajst-28818	479	7	drill	drill	NOUN
ajst-28818	479	8	-	-	PUNCT
ajst-28818	479	9	string	string	NOUN
ajst-28818	479	10	in	in	ADP
ajst-28818	479	11	the	the	DET
ajst-28818	479	12	entire	entire	ADJ
ajst-28818	479	13	seawater	seawater	NOUN
ajst-28818	479	14	section	section	NOUN
ajst-28818	479	15	moves	move	VERB
ajst-28818	479	16	periodically	periodically	ADV
ajst-28818	479	17	along	along	ADP
ajst-28818	479	18	with	with	ADP
ajst-28818	479	19	the	the	DET
ajst-28818	479	20	slow	slow	ADJ
ajst-28818	479	21	drift	drift	NOUN
ajst-28818	479	22	movement	movement	NOUN
ajst-28818	479	23	of	of	ADP
ajst-28818	479	24	the	the	DET
ajst-28818	479	25	platform	platform	NOUN
ajst-28818	479	26	in	in	ADP
ajst-28818	479	27	the	the	DET
ajst-28818	479	28	lateral	lateral	ADJ
ajst-28818	479	29	direction	direction	NOUN
ajst-28818	479	30	.	.	PUNCT
ajst-28818	480	1	the	the	DET
ajst-28818	480	2	phenomenon	phenomenon	NOUN
ajst-28818	480	3	that	that	SCONJ
ajst-28818	480	4	the	the	DET
ajst-28818	480	5	lateral	lateral	ADJ
ajst-28818	480	6	movement	movement	NOUN
ajst-28818	480	7	of	of	ADP
ajst-28818	480	8	the	the	DET
ajst-28818	480	9	drill	drill	NOUN
ajst-28818	480	10	-	-	PUNCT
ajst-28818	480	11	string	string	NOUN
ajst-28818	480	12	lags	lag	VERB
ajst-28818	480	13	behind	behind	ADP
ajst-28818	480	14	the	the	DET
ajst-28818	480	15	platform	platform	NOUN
ajst-28818	480	16	also	also	ADV
ajst-28818	480	17	exists	exist	VERB
ajst-28818	480	18	.	.	PUNCT
ajst-28818	480	19	comparing	compare	VERB
ajst-28818	480	20	fig	fig	NOUN
ajst-28818	480	21	.	.	PUNCT
ajst-28818	481	1	16(a)-(c	16(a)-(c	NUM
ajst-28818	481	2	)	)	PUNCT
ajst-28818	482	1	and	and	CCONJ
ajst-28818	482	2	fig	fig	NOUN
ajst-28818	482	3	.	.	PUNCT
ajst-28818	483	1	16(d	16(d	NUM
ajst-28818	483	2	)	)	PUNCT
ajst-28818	484	1	at	at	ADP
ajst-28818	484	2	the	the	DET
ajst-28818	484	3	midpoint	midpoint	NOUN
ajst-28818	484	4	of	of	ADP
ajst-28818	484	5	the	the	DET
ajst-28818	484	6	drill*string	drill*string	NOUN
ajst-28818	484	7	in	in	ADP
ajst-28818	484	8	the	the	DET
ajst-28818	484	9	seawater	seawater	NOUN
ajst-28818	484	10	section	section	NOUN
ajst-28818	484	11	(	(	PUNCT
ajst-28818	484	12	depth	depth	NOUN
ajst-28818	484	13	600	600	NUM
ajst-28818	484	14	m	m	NOUN
ajst-28818	484	15	)	)	PUNCT
ajst-28818	484	16	,	,	PUNCT
ajst-28818	484	17	it	it	PRON
ajst-28818	484	18	can	can	AUX
ajst-28818	484	19	be	be	AUX
ajst-28818	484	20	found	find	VERB
ajst-28818	484	21	that	that	SCONJ
ajst-28818	484	22	when	when	SCONJ
ajst-28818	484	23	the	the	DET
ajst-28818	484	24	slow	slow	ADJ
ajst-28818	484	25	drift	drift	NOUN
ajst-28818	484	26	period	period	NOUN
ajst-28818	484	27	is	be	AUX
ajst-28818	484	28	40	40	NUM
ajst-28818	484	29	s	s	NOUN
ajst-28818	484	30	,	,	PUNCT
ajst-28818	484	31	the	the	DET
ajst-28818	484	32	maximum	maximum	ADJ
ajst-28818	484	33	lateral	lateral	ADJ
ajst-28818	484	34	displacement	displacement	NOUN
ajst-28818	484	35	of	of	ADP
ajst-28818	484	36	the	the	DET
ajst-28818	484	37	drill	drill	NOUN
ajst-28818	484	38	-	-	PUNCT
ajst-28818	484	39	string	string	NOUN
ajst-28818	484	40	at	at	ADP
ajst-28818	484	41	each	each	DET
ajst-28818	484	42	depth	depth	NOUN
ajst-28818	484	43	is	be	AUX
ajst-28818	484	44	significantly	significantly	ADV
ajst-28818	484	45	smaller	small	ADJ
ajst-28818	484	46	than	than	ADP
ajst-28818	484	47	the	the	DET
ajst-28818	484	48	other	other	ADJ
ajst-28818	484	49	two	two	NUM
ajst-28818	484	50	cases	case	NOUN
ajst-28818	484	51	,	,	PUNCT
ajst-28818	484	52	which	which	PRON
ajst-28818	484	53	is	be	AUX
ajst-28818	484	54	due	due	ADJ
ajst-28818	484	55	to	to	ADP
ajst-28818	484	56	the	the	DET
ajst-28818	484	57	large	large	ADJ
ajst-28818	484	58	movement	movement	NOUN
ajst-28818	484	59	speed	speed	NOUN
ajst-28818	484	60	of	of	ADP
ajst-28818	484	61	the	the	DET
ajst-28818	484	62	platform	platform	NOUN
ajst-28818	484	63	,	,	PUNCT
ajst-28818	484	64	and	and	CCONJ
ajst-28818	484	65	the	the	DET
ajst-28818	484	66	drill	drill	NOUN
ajst-28818	484	67	-	-	PUNCT
ajst-28818	484	68	string	string	NOUN
ajst-28818	484	69	movement	movement	NOUN
ajst-28818	484	70	lags	lag	VERB
ajst-28818	484	71	behind	behind	ADP
ajst-28818	484	72	the	the	DET
ajst-28818	484	73	platform	platform	NOUN
ajst-28818	484	74	and	and	CCONJ
ajst-28818	484	75	has	have	AUX
ajst-28818	484	76	not	not	PART
ajst-28818	484	77	moved	move	VERB
ajst-28818	484	78	to	to	ADP
ajst-28818	484	79	the	the	DET
ajst-28818	484	80	maximum	maximum	ADJ
ajst-28818	484	81	displacement	displacement	NOUN
ajst-28818	484	82	.	.	PUNCT
ajst-28818	485	1	it	it	PRON
ajst-28818	485	2	's	be	AUX
ajst-28818	485	3	dragged	drag	VERB
ajst-28818	485	4	back	back	ADV
ajst-28818	485	5	by	by	ADP
ajst-28818	485	6	the	the	DET
ajst-28818	485	7	platform	platform	NOUN
ajst-28818	485	8	.	.	PUNCT
ajst-28818	486	1	fig	fig	NOUN
ajst-28818	486	2	.	.	PUNCT
ajst-28818	487	1	16	16	NUM
ajst-28818	487	2	(	(	PUNCT
ajst-28818	487	3	e	e	NOUN
ajst-28818	487	4	)	)	PUNCT
ajst-28818	487	5	shows	show	VERB
ajst-28818	487	6	the	the	DET
ajst-28818	487	7	curve	curve	NOUN
ajst-28818	487	8	of	of	ADP
ajst-28818	487	9	lateral	lateral	ADJ
ajst-28818	487	10	velocity	velocity	NOUN
ajst-28818	487	11	at	at	ADP
ajst-28818	487	12	the	the	DET
ajst-28818	487	13	midpoint	midpoint	NOUN
ajst-28818	487	14	of	of	ADP
ajst-28818	487	15	the	the	DET
ajst-28818	487	16	drill	drill	NOUN
ajst-28818	487	17	-	-	PUNCT
ajst-28818	487	18	string	string	NOUN
ajst-28818	487	19	in	in	ADP
ajst-28818	487	20	the	the	DET
ajst-28818	487	21	seawater	seawater	NOUN
ajst-28818	487	22	section	section	NOUN
ajst-28818	487	23	.	.	PUNCT
ajst-28818	488	1	it	it	PRON
ajst-28818	488	2	can	can	AUX
ajst-28818	488	3	be	be	AUX
ajst-28818	488	4	seen	see	VERB
ajst-28818	488	5	that	that	SCONJ
ajst-28818	488	6	the	the	DET
ajst-28818	488	7	fluctuation	fluctuation	NOUN
ajst-28818	488	8	amplitude	amplitude	NOUN
ajst-28818	488	9	of	of	ADP
ajst-28818	488	10	lateral	lateral	ADJ
ajst-28818	488	11	velocity	velocity	NOUN
ajst-28818	488	12	decreases	decrease	VERB
ajst-28818	488	13	with	with	ADP
ajst-28818	488	14	the	the	DET
ajst-28818	488	15	increase	increase	NOUN
ajst-28818	488	16	of	of	ADP
ajst-28818	488	17	the	the	DET
ajst-28818	488	18	period	period	NOUN
ajst-28818	488	19	of	of	ADP
ajst-28818	488	20	slow	slow	ADJ
ajst-28818	488	21	drift	drift	NOUN
ajst-28818	488	22	movement	movement	NOUN
ajst-28818	488	23	.	.	PUNCT
ajst-28818	489	1	298	298	NUM
ajst-28818	489	2	figure	figure	NOUN
ajst-28818	489	3	16	16	NUM
ajst-28818	489	4	.	.	PUNCT
ajst-28818	490	1	lateral	lateral	ADJ
ajst-28818	490	2	time	time	NOUN
ajst-28818	490	3	-	-	PUNCT
ajst-28818	490	4	history	history	NOUN
ajst-28818	490	5	response	response	NOUN
ajst-28818	490	6	of	of	ADP
ajst-28818	490	7	drill	drill	NOUN
ajst-28818	490	8	-	-	PUNCT
ajst-28818	490	9	string	string	NOUN
ajst-28818	490	10	in	in	ADP
ajst-28818	490	11	seawater	seawater	NOUN
ajst-28818	490	12	section	section	NOUN
ajst-28818	490	13	fig.17	fig.17	PROPN
ajst-28818	490	14	(	(	PUNCT
ajst-28818	490	15	a	a	PRON
ajst-28818	490	16	)	)	PUNCT
ajst-28818	490	17	shows	show	VERB
ajst-28818	490	18	that	that	SCONJ
ajst-28818	490	19	the	the	DET
ajst-28818	490	20	maximum	maximum	ADJ
ajst-28818	490	21	axial	axial	ADJ
ajst-28818	490	22	displacement	displacement	NOUN
ajst-28818	490	23	decreases	decrease	VERB
ajst-28818	490	24	with	with	ADP
ajst-28818	490	25	the	the	DET
ajst-28818	490	26	increase	increase	NOUN
ajst-28818	490	27	of	of	ADP
ajst-28818	490	28	the	the	DET
ajst-28818	490	29	slow	slow	ADJ
ajst-28818	490	30	drift	drift	NOUN
ajst-28818	490	31	period	period	NOUN
ajst-28818	490	32	.	.	PUNCT
ajst-28818	491	1	fig	fig	NOUN
ajst-28818	491	2	.	.	PUNCT
ajst-28818	492	1	17	17	NUM
ajst-28818	492	2	(	(	PUNCT
ajst-28818	492	3	b	b	NOUN
ajst-28818	492	4	)	)	PUNCT
ajst-28818	492	5	shows	show	VERB
ajst-28818	492	6	the	the	DET
ajst-28818	492	7	difference	difference	NOUN
ajst-28818	492	8	axial	axial	ADJ
ajst-28818	492	9	displacement	displacement	NOUN
ajst-28818	492	10	between	between	ADP
ajst-28818	492	11	the	the	DET
ajst-28818	492	12	top	top	NOUN
ajst-28818	492	13	of	of	ADP
ajst-28818	492	14	the	the	DET
ajst-28818	492	15	drill	drill	NOUN
ajst-28818	492	16	-	-	PUNCT
ajst-28818	492	17	string	string	NOUN
ajst-28818	492	18	and	and	CCONJ
ajst-28818	492	19	the	the	DET
ajst-28818	492	20	platform	platform	NOUN
ajst-28818	492	21	,	,	PUNCT
ajst-28818	492	22	which	which	PRON
ajst-28818	492	23	is	be	AUX
ajst-28818	492	24	also	also	ADV
ajst-28818	492	25	the	the	DET
ajst-28818	492	26	expansion	expansion	NOUN
ajst-28818	492	27	amount	amount	NOUN
ajst-28818	492	28	of	of	ADP
ajst-28818	492	29	the	the	DET
ajst-28818	492	30	heave	heave	NOUN
ajst-28818	492	31	compensator	compensator	NOUN
ajst-28818	492	32	.	.	PUNCT
ajst-28818	493	1	it	it	PRON
ajst-28818	493	2	can	can	AUX
ajst-28818	493	3	be	be	AUX
ajst-28818	493	4	found	find	VERB
ajst-28818	493	5	that	that	SCONJ
ajst-28818	493	6	the	the	DET
ajst-28818	493	7	maximum	maximum	ADJ
ajst-28818	493	8	amount	amount	NOUN
ajst-28818	493	9	of	of	ADP
ajst-28818	493	10	expansion	expansion	NOUN
ajst-28818	493	11	increases	increase	NOUN
ajst-28818	493	12	as	as	SCONJ
ajst-28818	493	13	the	the	DET
ajst-28818	493	14	slow	slow	ADJ
ajst-28818	493	15	drift	drift	NOUN
ajst-28818	493	16	period	period	NOUN
ajst-28818	493	17	decreases	decrease	VERB
ajst-28818	493	18	.	.	PUNCT
ajst-28818	494	1	therefore	therefore	ADV
ajst-28818	494	2	,	,	PUNCT
ajst-28818	494	3	when	when	SCONJ
ajst-28818	494	4	the	the	DET
ajst-28818	494	5	period	period	NOUN
ajst-28818	494	6	of	of	ADP
ajst-28818	494	7	slow	slow	ADJ
ajst-28818	494	8	drift	drift	NOUN
ajst-28818	494	9	motion	motion	NOUN
ajst-28818	494	10	is	be	AUX
ajst-28818	494	11	small	small	ADJ
ajst-28818	494	12	and	and	CCONJ
ajst-28818	494	13	the	the	DET
ajst-28818	494	14	slow	slow	ADJ
ajst-28818	494	15	drift	drift	NOUN
ajst-28818	494	16	velocity	velocity	NOUN
ajst-28818	494	17	is	be	AUX
ajst-28818	494	18	large	large	ADJ
ajst-28818	494	19	,	,	PUNCT
ajst-28818	494	20	the	the	DET
ajst-28818	494	21	compensation	compensation	NOUN
ajst-28818	494	22	cylinder	cylinder	NOUN
ajst-28818	494	23	stroke	stroke	NOUN
ajst-28818	494	24	of	of	ADP
ajst-28818	494	25	the	the	DET
ajst-28818	494	26	heave	heave	NOUN
ajst-28818	494	27	compensator	compensator	NOUN
ajst-28818	494	28	should	should	AUX
ajst-28818	494	29	be	be	AUX
ajst-28818	494	30	increased	increase	VERB
ajst-28818	494	31	.	.	PUNCT
ajst-28818	495	1	figure	figure	NOUN
ajst-28818	495	2	17	17	NUM
ajst-28818	495	3	.	.	PUNCT
ajst-28818	496	1	axial	axial	ADJ
ajst-28818	496	2	time	time	NOUN
ajst-28818	496	3	-	-	PUNCT
ajst-28818	496	4	history	history	NOUN
ajst-28818	496	5	response	response	NOUN
ajst-28818	496	6	of	of	ADP
ajst-28818	496	7	the	the	DET
ajst-28818	496	8	drill	drill	NOUN
ajst-28818	496	9	-	-	PUNCT
ajst-28818	496	10	string	string	NOUN
ajst-28818	496	11	top	top	NOUN
ajst-28818	496	12	:	:	PUNCT
ajst-28818	496	13	(	(	PUNCT
ajst-28818	496	14	a	a	X
ajst-28818	496	15	)	)	PUNCT
ajst-28818	496	16	displacement	displacement	NOUN
ajst-28818	496	17	,	,	PUNCT
ajst-28818	496	18	and	and	CCONJ
ajst-28818	496	19	(	(	PUNCT
ajst-28818	496	20	b	b	NOUN
ajst-28818	496	21	)	)	PUNCT
ajst-28818	496	22	relative	relative	ADJ
ajst-28818	496	23	displacement	displacement	NOUN
ajst-28818	496	24	between	between	ADP
ajst-28818	496	25	the	the	DET
ajst-28818	496	26	platform	platform	NOUN
ajst-28818	496	27	and	and	CCONJ
ajst-28818	496	28	the	the	DET
ajst-28818	496	29	drill	drill	NOUN
ajst-28818	496	30	-	-	PUNCT
ajst-28818	496	31	string	string	NOUN
ajst-28818	496	32	top	top	ADJ
ajst-28818	496	33	fig	fig	NOUN
ajst-28818	496	34	.	.	PUNCT
ajst-28818	497	1	18	18	NUM
ajst-28818	497	2	(	(	PUNCT
ajst-28818	497	3	a	a	NOUN
ajst-28818	497	4	)	)	PUNCT
ajst-28818	497	5	shows	show	VERB
ajst-28818	497	6	the	the	DET
ajst-28818	497	7	wob	wob	NOUN
ajst-28818	497	8	time	time	NOUN
ajst-28818	497	9	-	-	PUNCT
ajst-28818	497	10	history	history	NOUN
ajst-28818	497	11	response	response	NOUN
ajst-28818	497	12	diagram	diagram	NOUN
ajst-28818	497	13	.	.	PUNCT
ajst-28818	498	1	it	it	PRON
ajst-28818	498	2	can	can	AUX
ajst-28818	498	3	be	be	AUX
ajst-28818	498	4	found	find	VERB
ajst-28818	498	5	that	that	SCONJ
ajst-28818	498	6	the	the	DET
ajst-28818	498	7	amplitude	amplitude	NOUN
ajst-28818	498	8	of	of	ADP
ajst-28818	498	9	the	the	DET
ajst-28818	498	10	fluctuation	fluctuation	NOUN
ajst-28818	498	11	of	of	ADP
ajst-28818	498	12	the	the	DET
ajst-28818	498	13	bit	bit	NOUN
ajst-28818	498	14	pressure	pressure	NOUN
ajst-28818	498	15	increases	increase	NOUN
ajst-28818	498	16	with	with	ADP
ajst-28818	498	17	the	the	DET
ajst-28818	498	18	decrease	decrease	NOUN
ajst-28818	498	19	of	of	ADP
ajst-28818	498	20	the	the	DET
ajst-28818	498	21	slow	slow	ADJ
ajst-28818	498	22	drift	drift	NOUN
ajst-28818	498	23	period	period	NOUN
ajst-28818	498	24	.	.	PUNCT
ajst-28818	499	1	fig	fig	NOUN
ajst-28818	499	2	.	.	PUNCT
ajst-28818	500	1	18	18	NUM
ajst-28818	500	2	(	(	PUNCT
ajst-28818	500	3	b	b	NOUN
ajst-28818	500	4	)	)	PUNCT
ajst-28818	500	5	(	(	PUNCT
ajst-28818	500	6	d	d	X
ajst-28818	500	7	)	)	PUNCT
ajst-28818	500	8	shows	show	VERB
ajst-28818	500	9	the	the	DET
ajst-28818	500	10	amplitude	amplitude	NOUN
ajst-28818	500	11	-	-	PUNCT
ajst-28818	500	12	frequency	frequency	NOUN
ajst-28818	500	13	response	response	NOUN
ajst-28818	500	14	curves	curve	NOUN
ajst-28818	500	15	of	of	ADP
ajst-28818	500	16	wob	wob	NOUN
ajst-28818	500	17	.	.	PUNCT
ajst-28818	501	1	the	the	DET
ajst-28818	501	2	amplitude	amplitude	NOUN
ajst-28818	501	3	of	of	ADP
ajst-28818	501	4	the	the	DET
ajst-28818	501	5	corresponding	corresponding	ADJ
ajst-28818	501	6	frequency	frequency	NOUN
ajst-28818	501	7	component	component	NOUN
ajst-28818	501	8	is	be	AUX
ajst-28818	501	9	essentially	essentially	ADV
ajst-28818	501	10	about	about	ADV
ajst-28818	501	11	7.53	7.53	NUM
ajst-28818	501	12	kn	kn	NOUN
ajst-28818	501	13	due	due	ADP
ajst-28818	501	14	to	to	ADP
ajst-28818	501	15	the	the	DET
ajst-28818	501	16	same	same	ADJ
ajst-28818	501	17	heave	heave	NOUN
ajst-28818	501	18	motion	motion	NOUN
ajst-28818	501	19	,	,	PUNCT
ajst-28818	501	20	while	while	SCONJ
ajst-28818	501	21	the	the	DET
ajst-28818	501	22	amplitude	amplitude	NOUN
ajst-28818	501	23	of	of	ADP
ajst-28818	501	24	the	the	DET
ajst-28818	501	25	corresponding	corresponding	ADJ
ajst-28818	501	26	frequency	frequency	NOUN
ajst-28818	501	27	component	component	NOUN
ajst-28818	501	28	of	of	ADP
ajst-28818	501	29	the	the	DET
ajst-28818	501	30	slow	slow	ADJ
ajst-28818	501	31	drift	drift	NOUN
ajst-28818	501	32	motion	motion	NOUN
ajst-28818	501	33	increases	increase	NOUN
ajst-28818	501	34	as	as	SCONJ
ajst-28818	501	35	the	the	DET
ajst-28818	501	36	slow	slow	ADJ
ajst-28818	501	37	drift	drift	NOUN
ajst-28818	501	38	period	period	NOUN
ajst-28818	501	39	decreases	decrease	VERB
ajst-28818	501	40	.	.	PUNCT
ajst-28818	502	1	therefore	therefore	ADV
ajst-28818	502	2	,	,	PUNCT
ajst-28818	502	3	it	it	PRON
ajst-28818	502	4	is	be	AUX
ajst-28818	502	5	necessary	necessary	ADJ
ajst-28818	502	6	to	to	PART
ajst-28818	502	7	limit	limit	VERB
ajst-28818	502	8	the	the	DET
ajst-28818	502	9	slow	slow	ADJ
ajst-28818	502	10	drift	drift	NOUN
ajst-28818	502	11	motion	motion	NOUN
ajst-28818	502	12	period	period	NOUN
ajst-28818	502	13	and	and	CCONJ
ajst-28818	502	14	the	the	DET
ajst-28818	502	15	motion	motion	NOUN
ajst-28818	502	16	speed	speed	NOUN
ajst-28818	502	17	of	of	ADP
ajst-28818	502	18	the	the	DET
ajst-28818	502	19	platform	platform	NOUN
ajst-28818	502	20	to	to	PART
ajst-28818	502	21	reduce	reduce	VERB
ajst-28818	502	22	the	the	DET
ajst-28818	502	23	down	down	ADJ
ajst-28818	502	24	-	-	PUNCT
ajst-28818	502	25	hole	hole	NOUN
ajst-28818	502	26	bit	bit	NOUN
ajst-28818	502	27	pressure	pressure	NOUN
ajst-28818	502	28	fluctuations	fluctuation	NOUN
ajst-28818	502	29	.	.	PUNCT
ajst-28818	503	1	299	299	NUM
ajst-28818	503	2	figure	figure	NOUN
ajst-28818	503	3	18	18	NUM
ajst-28818	503	4	.	.	PUNCT
ajst-28818	503	5	wob	wob	NOUN
ajst-28818	503	6	time	time	PROPN
ajst-28818	503	7	history	history	NOUN
ajst-28818	503	8	curve	curve	NOUN
ajst-28818	503	9	and	and	CCONJ
ajst-28818	503	10	amplitude	amplitude	NOUN
ajst-28818	503	11	-	-	PUNCT
ajst-28818	503	12	frequency	frequency	NOUN
ajst-28818	503	13	response	response	NOUN
ajst-28818	503	14	curve	curve	NOUN
ajst-28818	503	15	fig	fig	PROPN
ajst-28818	503	16	.	.	PUNCT
ajst-28818	504	1	19	19	NUM
ajst-28818	504	2	shows	show	VERB
ajst-28818	504	3	the	the	DET
ajst-28818	504	4	torsional	torsional	ADJ
ajst-28818	504	5	response	response	NOUN
ajst-28818	504	6	of	of	ADP
ajst-28818	504	7	the	the	DET
ajst-28818	504	8	bit	bit	NOUN
ajst-28818	504	9	,	,	PUNCT
ajst-28818	504	10	and	and	CCONJ
ajst-28818	504	11	fig	fig	NOUN
ajst-28818	504	12	.	.	PUNCT
ajst-28818	505	1	19	19	NUM
ajst-28818	505	2	(	(	PUNCT
ajst-28818	505	3	a	a	NOUN
ajst-28818	505	4	)	)	PUNCT
ajst-28818	505	5	(	(	PUNCT
ajst-28818	505	6	c	c	X
ajst-28818	505	7	)	)	PUNCT
ajst-28818	505	8	shows	show	VERB
ajst-28818	505	9	the	the	DET
ajst-28818	505	10	time	time	NOUN
ajst-28818	505	11	-	-	PUNCT
ajst-28818	505	12	history	history	NOUN
ajst-28818	505	13	response	response	NOUN
ajst-28818	505	14	curves	curve	NOUN
ajst-28818	505	15	of	of	ADP
ajst-28818	505	16	the	the	DET
ajst-28818	505	17	friction	friction	NOUN
ajst-28818	505	18	torque	torque	NOUN
ajst-28818	505	19	,	,	PUNCT
ajst-28818	505	20	torsional	torsional	ADJ
ajst-28818	505	21	displacement	displacement	NOUN
ajst-28818	505	22	and	and	CCONJ
ajst-28818	505	23	rotational	rotational	ADJ
ajst-28818	505	24	speed	speed	NOUN
ajst-28818	505	25	of	of	ADP
ajst-28818	505	26	the	the	DET
ajst-28818	505	27	bit	bit	NOUN
ajst-28818	505	28	,	,	PUNCT
ajst-28818	505	29	respectively	respectively	ADV
ajst-28818	505	30	.	.	PUNCT
ajst-28818	506	1	it	it	PRON
ajst-28818	506	2	can	can	AUX
ajst-28818	506	3	be	be	AUX
ajst-28818	506	4	found	find	VERB
ajst-28818	506	5	that	that	SCONJ
ajst-28818	506	6	the	the	DET
ajst-28818	506	7	bit	bit	NOUN
ajst-28818	506	8	changes	change	VERB
ajst-28818	506	9	back	back	ADV
ajst-28818	506	10	and	and	CCONJ
ajst-28818	506	11	forth	forth	ADV
ajst-28818	506	12	between	between	ADP
ajst-28818	506	13	the	the	DET
ajst-28818	506	14	viscous	viscous	ADJ
ajst-28818	506	15	and	and	CCONJ
ajst-28818	506	16	slip	slip	NOUN
ajst-28818	506	17	states	state	NOUN
ajst-28818	506	18	,	,	PUNCT
ajst-28818	506	19	and	and	CCONJ
ajst-28818	506	20	that	that	SCONJ
ajst-28818	506	21	the	the	DET
ajst-28818	506	22	torsional	torsional	ADJ
ajst-28818	506	23	response	response	NOUN
ajst-28818	506	24	of	of	ADP
ajst-28818	506	25	the	the	DET
ajst-28818	506	26	bit	bit	NOUN
ajst-28818	506	27	at	at	ADP
ajst-28818	506	28	different	different	ADJ
ajst-28818	506	29	slow	slow	ADJ
ajst-28818	506	30	drift	drift	NOUN
ajst-28818	506	31	periods	period	NOUN
ajst-28818	506	32	is	be	AUX
ajst-28818	506	33	somehow	somehow	ADV
ajst-28818	506	34	different	different	ADJ
ajst-28818	506	35	.	.	PUNCT
ajst-28818	507	1	fig	fig	NOUN
ajst-28818	507	2	.	.	PUNCT
ajst-28818	508	1	19	19	NUM
ajst-28818	508	2	(	(	PUNCT
ajst-28818	508	3	d	d	NOUN
ajst-28818	508	4	)	)	PUNCT
ajst-28818	508	5	(	(	PUNCT
ajst-28818	508	6	f	f	X
ajst-28818	508	7	)	)	PUNCT
ajst-28818	508	8	shows	show	VERB
ajst-28818	508	9	the	the	DET
ajst-28818	508	10	response	response	NOUN
ajst-28818	508	11	curve	curve	NOUN
ajst-28818	508	12	of	of	ADP
ajst-28818	508	13	bit	bit	NOUN
ajst-28818	508	14	torsion	torsion	NOUN
ajst-28818	508	15	amplitude	amplitude	NOUN
ajst-28818	508	16	and	and	CCONJ
ajst-28818	508	17	frequency	frequency	NOUN
ajst-28818	508	18	,	,	PUNCT
ajst-28818	508	19	where	where	SCONJ
ajst-28818	508	20	the	the	DET
ajst-28818	508	21	turntable	turntable	ADJ
ajst-28818	508	22	rotary	rotary	NOUN
ajst-28818	508	23	speed	speed	NOUN
ajst-28818	508	24	is	be	AUX
ajst-28818	508	25	5	5	NUM
ajst-28818	508	26	rad	rad	NOUN
ajst-28818	508	27	/	/	SYM
ajst-28818	508	28	s.	s.	PROPN
ajst-28818	508	29	it	it	PRON
ajst-28818	508	30	can	can	AUX
ajst-28818	508	31	be	be	AUX
ajst-28818	508	32	found	find	VERB
ajst-28818	508	33	that	that	SCONJ
ajst-28818	508	34	the	the	DET
ajst-28818	508	35	bit	bit	NOUN
ajst-28818	508	36	rotation	rotation	NOUN
ajst-28818	508	37	velocities	velocity	NOUN
ajst-28818	508	38	at	at	ADP
ajst-28818	508	39	different	different	ADJ
ajst-28818	508	40	slow	slow	ADJ
ajst-28818	508	41	drift	drift	NOUN
ajst-28818	508	42	periods	period	NOUN
ajst-28818	508	43	have	have	VERB
ajst-28818	508	44	the	the	DET
ajst-28818	508	45	largest	large	ADJ
ajst-28818	508	46	amplitudes	amplitude	NOUN
ajst-28818	508	47	around	around	ADP
ajst-28818	508	48	0.12hz	0.12hz	NOUN
ajst-28818	508	49	,	,	PUNCT
ajst-28818	508	50	which	which	PRON
ajst-28818	508	51	are	be	AUX
ajst-28818	508	52	4.3	4.3	NUM
ajst-28818	508	53	rad	rad	PROPN
ajst-28818	508	54	/	/	SYM
ajst-28818	508	55	s	s	PROPN
ajst-28818	508	56	,	,	PUNCT
ajst-28818	508	57	5.42	5.42	NUM
ajst-28818	508	58	rad	rad	PROPN
ajst-28818	508	59	/	/	SYM
ajst-28818	508	60	s	s	X
ajst-28818	508	61	and	and	CCONJ
ajst-28818	508	62	5.1	5.1	NUM
ajst-28818	508	63	rad	rad	NOUN
ajst-28818	508	64	/	/	SYM
ajst-28818	508	65	s	s	PROPN
ajst-28818	508	66	,	,	PUNCT
ajst-28818	508	67	respectively	respectively	ADV
ajst-28818	508	68	.	.	PUNCT
ajst-28818	509	1	fig	fig	NOUN
ajst-28818	509	2	.	.	PUNCT
ajst-28818	510	1	19	19	NUM
ajst-28818	510	2	(	(	PUNCT
ajst-28818	510	3	g	g	NOUN
ajst-28818	510	4	)	)	PUNCT
ajst-28818	510	5	(	(	PUNCT
ajst-28818	510	6	i	i	NOUN
ajst-28818	510	7	)	)	PUNCT
ajst-28818	510	8	bit	bit	NOUN
ajst-28818	510	9	torsion	torsion	NOUN
ajst-28818	510	10	phase	phase	NOUN
ajst-28818	510	11	diagram	diagram	NOUN
ajst-28818	510	12	and	and	CCONJ
ajst-28818	510	13	poincaré	poincaré	PROPN
ajst-28818	510	14	map	map	NOUN
ajst-28818	510	15	.	.	PUNCT
ajst-28818	511	1	the	the	DET
ajst-28818	511	2	absence	absence	NOUN
ajst-28818	511	3	of	of	ADP
ajst-28818	511	4	an	an	DET
ajst-28818	511	5	obvious	obvious	ADJ
ajst-28818	511	6	fixed	fix	VERB
ajst-28818	511	7	toroidal	toroidal	ADJ
ajst-28818	511	8	trajectory	trajectory	NOUN
ajst-28818	511	9	in	in	ADP
ajst-28818	511	10	the	the	DET
ajst-28818	511	11	phase	phase	NOUN
ajst-28818	511	12	diagram	diagram	NOUN
ajst-28818	511	13	indicates	indicate	VERB
ajst-28818	511	14	that	that	SCONJ
ajst-28818	511	15	the	the	DET
ajst-28818	511	16	bit	bit	NOUN
ajst-28818	511	17	rotation	rotation	NOUN
ajst-28818	511	18	has	have	VERB
ajst-28818	511	19	a	a	DET
ajst-28818	511	20	chaotic	chaotic	ADJ
ajst-28818	511	21	character	character	NOUN
ajst-28818	511	22	and	and	CCONJ
ajst-28818	511	23	increases	increase	NOUN
ajst-28818	511	24	as	as	SCONJ
ajst-28818	511	25	the	the	DET
ajst-28818	511	26	slow	slow	ADJ
ajst-28818	511	27	drift	drift	NOUN
ajst-28818	511	28	period	period	NOUN
ajst-28818	511	29	decreases	decrease	VERB
ajst-28818	511	30	.	.	PUNCT
ajst-28818	512	1	300	300	NUM
ajst-28818	512	2	figure	figure	NOUN
ajst-28818	512	3	19	19	NUM
ajst-28818	512	4	.	.	PUNCT
ajst-28818	512	5	bit	bit	NOUN
ajst-28818	512	6	torsional	torsional	ADJ
ajst-28818	512	7	response	response	NOUN
ajst-28818	512	8	:	:	PUNCT
ajst-28818	512	9	(	(	PUNCT
ajst-28818	512	10	a	a	X
ajst-28818	512	11	)	)	PUNCT
ajst-28818	512	12	friction	friction	NOUN
ajst-28818	512	13	torque	torque	NOUN
ajst-28818	512	14	,	,	PUNCT
ajst-28818	512	15	(	(	PUNCT
ajst-28818	512	16	b	b	NOUN
ajst-28818	512	17	)	)	PUNCT
ajst-28818	512	18	displacement	displacement	NOUN
ajst-28818	512	19	,	,	PUNCT
ajst-28818	512	20	(	(	PUNCT
ajst-28818	512	21	c	c	NOUN
ajst-28818	512	22	)	)	PUNCT
ajst-28818	512	23	speed	speed	NOUN
ajst-28818	512	24	,	,	PUNCT
ajst-28818	512	25	(	(	PUNCT
ajst-28818	512	26	d)-(i	d)-(i	NOUN
ajst-28818	512	27	)	)	PUNCT
ajst-28818	512	28	speed	speed	NOUN
ajst-28818	512	29	amplitude	amplitude	NOUN
ajst-28818	512	30	-	-	PUNCT
ajst-28818	512	31	frequency	frequency	NOUN
ajst-28818	512	32	response	response	NOUN
ajst-28818	512	33	,	,	PUNCT
ajst-28818	512	34	phase	phase	NOUN
ajst-28818	512	35	diagram	diagram	NOUN
ajst-28818	512	36	and	and	CCONJ
ajst-28818	512	37	poincaré	poincaré	PROPN
ajst-28818	512	38	map	map	VERB
ajst-28818	512	39	fig	fig	NOUN
ajst-28818	512	40	.	.	PUNCT
ajst-28818	513	1	20	20	NUM
ajst-28818	513	2	shows	show	VERB
ajst-28818	513	3	the	the	DET
ajst-28818	513	4	torsional	torsional	ADJ
ajst-28818	513	5	response	response	NOUN
ajst-28818	513	6	at	at	ADP
ajst-28818	513	7	the	the	DET
ajst-28818	513	8	midpoint	midpoint	NOUN
ajst-28818	513	9	of	of	ADP
ajst-28818	513	10	the	the	DET
ajst-28818	513	11	drill	drill	NOUN
ajst-28818	513	12	-	-	PUNCT
ajst-28818	513	13	string	string	NOUN
ajst-28818	513	14	(	(	PUNCT
ajst-28818	513	15	1250	1250	NUM
ajst-28818	513	16	m	m	NOUN
ajst-28818	513	17	depth	depth	NOUN
ajst-28818	513	18	)	)	PUNCT
ajst-28818	513	19	.	.	PUNCT
ajst-28818	514	1	compared	compare	VERB
ajst-28818	514	2	with	with	ADP
ajst-28818	514	3	the	the	DET
ajst-28818	514	4	drill	drill	NOUN
ajst-28818	514	5	bit	bit	NOUN
ajst-28818	514	6	,	,	PUNCT
ajst-28818	514	7	the	the	DET
ajst-28818	514	8	response	response	NOUN
ajst-28818	514	9	is	be	AUX
ajst-28818	514	10	more	more	ADV
ajst-28818	514	11	complex	complex	ADJ
ajst-28818	514	12	,	,	PUNCT
ajst-28818	514	13	because	because	SCONJ
ajst-28818	514	14	there	there	PRON
ajst-28818	514	15	is	be	VERB
ajst-28818	514	16	an	an	DET
ajst-28818	514	17	extra	extra	ADJ
ajst-28818	514	18	high	high	ADJ
ajst-28818	514	19	frequency	frequency	NOUN
ajst-28818	514	20	component	component	NOUN
ajst-28818	514	21	about	about	ADP
ajst-28818	514	22	0.66hz	0.66hz	ADV
ajst-28818	514	23	in	in	ADP
ajst-28818	514	24	the	the	DET
ajst-28818	514	25	amplitudefrequency	amplitudefrequency	NOUN
ajst-28818	514	26	response	response	NOUN
ajst-28818	514	27	curve	curve	NOUN
ajst-28818	514	28	of	of	ADP
ajst-28818	514	29	fig	fig	NOUN
ajst-28818	514	30	.	.	PUNCT
ajst-28818	515	1	20	20	NUM
ajst-28818	515	2	(	(	PUNCT
ajst-28818	515	3	b	b	NOUN
ajst-28818	515	4	)	)	PUNCT
ajst-28818	515	5	(	(	PUNCT
ajst-28818	515	6	d	d	NOUN
ajst-28818	515	7	)	)	PUNCT
ajst-28818	515	8	.	.	PUNCT
ajst-28818	516	1	it	it	PRON
ajst-28818	516	2	can	can	AUX
ajst-28818	516	3	be	be	AUX
ajst-28818	516	4	seen	see	VERB
ajst-28818	516	5	from	from	ADP
ajst-28818	516	6	fig	fig	NOUN
ajst-28818	516	7	.	.	PUNCT
ajst-28818	517	1	20	20	NUM
ajst-28818	517	2	(	(	PUNCT
ajst-28818	517	3	e	e	NOUN
ajst-28818	517	4	)	)	PUNCT
ajst-28818	517	5	(	(	PUNCT
ajst-28818	517	6	g	g	NOUN
ajst-28818	517	7	)	)	PUNCT
ajst-28818	517	8	that	that	SCONJ
ajst-28818	517	9	the	the	DET
ajst-28818	517	10	torsional	torsional	ADJ
ajst-28818	517	11	vibration	vibration	NOUN
ajst-28818	517	12	at	at	ADP
ajst-28818	517	13	the	the	DET
ajst-28818	517	14	midpoint	midpoint	NOUN
ajst-28818	517	15	of	of	ADP
ajst-28818	517	16	the	the	DET
ajst-28818	517	17	drill	drill	NOUN
ajst-28818	517	18	-	-	PUNCT
ajst-28818	517	19	string	string	NOUN
ajst-28818	517	20	also	also	ADV
ajst-28818	517	21	has	have	VERB
ajst-28818	517	22	chaotic	chaotic	ADJ
ajst-28818	517	23	characteristics	characteristic	NOUN
ajst-28818	517	24	.	.	PUNCT
ajst-28818	518	1	figure	figure	NOUN
ajst-28818	518	2	20	20	NUM
ajst-28818	518	3	.	.	PUNCT
ajst-28818	519	1	torsion	torsion	NOUN
ajst-28818	519	2	-	-	PUNCT
ajst-28818	519	3	response	response	NOUN
ajst-28818	519	4	of	of	ADP
ajst-28818	519	5	drill	drill	NOUN
ajst-28818	519	6	-	-	PUNCT
ajst-28818	519	7	string	string	NOUN
ajst-28818	519	8	at	at	ADP
ajst-28818	519	9	1250	1250	NUM
ajst-28818	519	10	m	m	NOUN
ajst-28818	519	11	depth	depth	NOUN
ajst-28818	519	12	:	:	PUNCT
ajst-28818	519	13	(	(	PUNCT
ajst-28818	519	14	a	a	X
ajst-28818	519	15	)	)	PUNCT
ajst-28818	519	16	rotational	rotational	ADJ
ajst-28818	519	17	speed	speed	NOUN
ajst-28818	519	18	,	,	PUNCT
ajst-28818	519	19	(	(	PUNCT
ajst-28818	519	20	b)-(g	b)-(g	NOUN
ajst-28818	519	21	)	)	PUNCT
ajst-28818	519	22	amplitude	amplitude	NOUN
ajst-28818	519	23	-	-	PUNCT
ajst-28818	519	24	frequency	frequency	NOUN
ajst-28818	519	25	response	response	NOUN
ajst-28818	519	26	,	,	PUNCT
ajst-28818	519	27	phase	phase	NOUN
ajst-28818	519	28	diagram	diagram	NOUN
ajst-28818	519	29	and	and	CCONJ
ajst-28818	519	30	poincaré	poincaré	PROPN
ajst-28818	519	31	map	map	VERB
ajst-28818	519	32	301	301	NUM
ajst-28818	519	33	3.5	3.5	NUM
ajst-28818	519	34	.	.	PUNCT
ajst-28818	520	1	the	the	DET
ajst-28818	520	2	influence	influence	NOUN
ajst-28818	520	3	of	of	ADP
ajst-28818	520	4	different	different	ADJ
ajst-28818	520	5	heave	heave	NOUN
ajst-28818	520	6	motion	motion	NOUN
ajst-28818	520	7	amplitude	amplitude	NOUN
ajst-28818	520	8	the	the	DET
ajst-28818	520	9	amplitude	amplitude	NOUN
ajst-28818	520	10	of	of	ADP
ajst-28818	520	11	heave	heave	ADJ
ajst-28818	520	12	motion	motion	NOUN
ajst-28818	520	13	of	of	ADP
ajst-28818	520	14	the	the	DET
ajst-28818	520	15	platform	platform	NOUN
ajst-28818	520	16	is	be	AUX
ajst-28818	520	17	0.5	0.5	NUM
ajst-28818	520	18	m	m	NOUN
ajst-28818	520	19	,	,	PUNCT
ajst-28818	520	20	1	1	NUM
ajst-28818	520	21	m	m	NOUN
ajst-28818	520	22	and	and	CCONJ
ajst-28818	520	23	1.5	1.5	NUM
ajst-28818	520	24	m	m	NOUN
ajst-28818	520	25	respectively	respectively	ADV
ajst-28818	520	26	,	,	PUNCT
ajst-28818	520	27	and	and	CCONJ
ajst-28818	520	28	its	its	PRON
ajst-28818	520	29	period	period	NOUN
ajst-28818	520	30	is	be	AUX
ajst-28818	520	31	consistent	consistent	ADJ
ajst-28818	520	32	with	with	ADP
ajst-28818	520	33	the	the	DET
ajst-28818	520	34	wave	wave	NOUN
ajst-28818	520	35	period	period	NOUN
ajst-28818	520	36	of	of	ADP
ajst-28818	520	37	11.2s	11.2s	NUM
ajst-28818	520	38	.	.	PUNCT
ajst-28818	521	1	the	the	DET
ajst-28818	521	2	amplitude	amplitude	NOUN
ajst-28818	521	3	of	of	ADP
ajst-28818	521	4	the	the	DET
ajst-28818	521	5	slow	slow	ADJ
ajst-28818	521	6	drift	drift	NOUN
ajst-28818	521	7	movement	movement	NOUN
ajst-28818	521	8	of	of	ADP
ajst-28818	521	9	the	the	DET
ajst-28818	521	10	platform	platform	NOUN
ajst-28818	521	11	is	be	AUX
ajst-28818	521	12	15	15	NUM
ajst-28818	521	13	m	m	NOUN
ajst-28818	521	14	,	,	PUNCT
ajst-28818	521	15	the	the	DET
ajst-28818	521	16	slow	slow	ADJ
ajst-28818	521	17	drift	drift	NOUN
ajst-28818	521	18	movement	movement	NOUN
ajst-28818	521	19	is	be	AUX
ajst-28818	521	20	performed	perform	VERB
ajst-28818	521	21	at	at	ADP
ajst-28818	521	22	5	5	NUM
ajst-28818	521	23	-	-	SYM
ajst-28818	521	24	35	35	NUM
ajst-28818	521	25	m	m	NOUN
ajst-28818	521	26	,	,	PUNCT
ajst-28818	521	27	and	and	CCONJ
ajst-28818	521	28	the	the	DET
ajst-28818	521	29	slow	slow	ADJ
ajst-28818	521	30	drift	drift	NOUN
ajst-28818	521	31	period	period	NOUN
ajst-28818	521	32	is	be	AUX
ajst-28818	521	33	80	80	NUM
ajst-28818	521	34	s.	s.	PROPN
ajst-28818	521	35	fig	fig	PROPN
ajst-28818	521	36	.	.	PUNCT
ajst-28818	522	1	21	21	NUM
ajst-28818	522	2	shows	show	VERB
ajst-28818	522	3	the	the	DET
ajst-28818	522	4	time	time	NOUN
ajst-28818	522	5	-	-	PUNCT
ajst-28818	522	6	history	history	NOUN
ajst-28818	522	7	response	response	NOUN
ajst-28818	522	8	of	of	ADP
ajst-28818	522	9	the	the	DET
ajst-28818	522	10	lateral	lateral	ADJ
ajst-28818	522	11	displacement	displacement	NOUN
ajst-28818	522	12	at	at	ADP
ajst-28818	522	13	the	the	DET
ajst-28818	522	14	midpoint	midpoint	NOUN
ajst-28818	522	15	of	of	ADP
ajst-28818	522	16	the	the	DET
ajst-28818	522	17	drill	drill	NOUN
ajst-28818	522	18	-	-	PUNCT
ajst-28818	522	19	string	string	NOUN
ajst-28818	522	20	in	in	ADP
ajst-28818	522	21	seawater	seawater	NOUN
ajst-28818	522	22	segment	segment	NOUN
ajst-28818	522	23	.	.	PUNCT
ajst-28818	523	1	compared	compare	VERB
ajst-28818	523	2	with	with	ADP
ajst-28818	523	3	the	the	DET
ajst-28818	523	4	lateral	lateral	ADJ
ajst-28818	523	5	displacement	displacement	NOUN
ajst-28818	523	6	curve	curve	NOUN
ajst-28818	523	7	without	without	ADP
ajst-28818	523	8	heave	heave	NOUN
ajst-28818	523	9	compensation	compensation	NOUN
ajst-28818	523	10	device	device	NOUN
ajst-28818	523	11	in	in	ADP
ajst-28818	523	12	fig	fig	NOUN
ajst-28818	523	13	.	.	PUNCT
ajst-28818	524	1	9	9	NUM
ajst-28818	524	2	(	(	PUNCT
ajst-28818	524	3	c	c	NOUN
ajst-28818	524	4	)	)	PUNCT
ajst-28818	524	5	,	,	PUNCT
ajst-28818	524	6	the	the	DET
ajst-28818	524	7	displacement	displacement	ADJ
ajst-28818	524	8	fluctuation	fluctuation	NOUN
ajst-28818	524	9	in	in	ADP
ajst-28818	524	10	fig	fig	NOUN
ajst-28818	524	11	.	.	PUNCT
ajst-28818	525	1	21	21	NUM
ajst-28818	525	2	(	(	PUNCT
ajst-28818	525	3	a	a	NOUN
ajst-28818	525	4	)	)	PUNCT
ajst-28818	525	5	is	be	AUX
ajst-28818	525	6	small	small	ADJ
ajst-28818	525	7	,	,	PUNCT
ajst-28818	525	8	and	and	CCONJ
ajst-28818	525	9	the	the	DET
ajst-28818	525	10	influence	influence	NOUN
ajst-28818	525	11	of	of	ADP
ajst-28818	525	12	different	different	ADJ
ajst-28818	525	13	heave	heave	ADJ
ajst-28818	525	14	amplitude	amplitude	NOUN
ajst-28818	525	15	on	on	ADP
ajst-28818	525	16	the	the	DET
ajst-28818	525	17	lateral	lateral	ADJ
ajst-28818	525	18	displacement	displacement	NOUN
ajst-28818	525	19	in	in	ADP
ajst-28818	525	20	seawater	seawater	NOUN
ajst-28818	525	21	segment	segment	NOUN
ajst-28818	525	22	can	can	AUX
ajst-28818	525	23	be	be	AUX
ajst-28818	525	24	obviously	obviously	ADV
ajst-28818	525	25	observed	observe	VERB
ajst-28818	525	26	from	from	ADP
ajst-28818	525	27	the	the	DET
ajst-28818	525	28	velocity	velocity	NOUN
ajst-28818	525	29	response	response	NOUN
ajst-28818	525	30	curve	curve	NOUN
ajst-28818	525	31	.	.	PUNCT
ajst-28818	526	1	it	it	PRON
ajst-28818	526	2	can	can	AUX
ajst-28818	526	3	be	be	AUX
ajst-28818	526	4	found	find	VERB
ajst-28818	526	5	that	that	SCONJ
ajst-28818	526	6	as	as	ADP
ajst-28818	526	7	the	the	DET
ajst-28818	526	8	amplitude	amplitude	NOUN
ajst-28818	526	9	of	of	ADP
ajst-28818	526	10	the	the	DET
ajst-28818	526	11	heave	heave	NOUN
ajst-28818	526	12	increases	increase	NOUN
ajst-28818	526	13	,	,	PUNCT
ajst-28818	526	14	the	the	DET
ajst-28818	526	15	amplitude	amplitude	NOUN
ajst-28818	526	16	of	of	ADP
ajst-28818	526	17	the	the	DET
ajst-28818	526	18	axial	axial	ADJ
ajst-28818	526	19	tension	tension	NOUN
ajst-28818	526	20	of	of	ADP
ajst-28818	526	21	the	the	DET
ajst-28818	526	22	drill	drill	NOUN
ajst-28818	526	23	-	-	PUNCT
ajst-28818	526	24	string	string	NOUN
ajst-28818	526	25	increases	increase	NOUN
ajst-28818	526	26	,	,	PUNCT
ajst-28818	526	27	the	the	DET
ajst-28818	526	28	amplitude	amplitude	NOUN
ajst-28818	526	29	of	of	ADP
ajst-28818	526	30	the	the	DET
ajst-28818	526	31	transverse	transverse	NOUN
ajst-28818	526	32	stiffness	stiffness	NOUN
ajst-28818	526	33	fluctuation	fluctuation	NOUN
ajst-28818	526	34	increases	increase	NOUN
ajst-28818	526	35	,	,	PUNCT
ajst-28818	526	36	and	and	CCONJ
ajst-28818	526	37	the	the	DET
ajst-28818	526	38	amplitude	amplitude	NOUN
ajst-28818	526	39	of	of	ADP
ajst-28818	526	40	the	the	DET
ajst-28818	526	41	transverse	transverse	NOUN
ajst-28818	526	42	velocity	velocity	NOUN
ajst-28818	526	43	fluctuation	fluctuation	NOUN
ajst-28818	526	44	of	of	ADP
ajst-28818	526	45	the	the	DET
ajst-28818	526	46	drill	drill	NOUN
ajst-28818	526	47	-	-	PUNCT
ajst-28818	526	48	string	string	NOUN
ajst-28818	526	49	in	in	ADP
ajst-28818	526	50	seawater	seawater	NOUN
ajst-28818	526	51	also	also	ADV
ajst-28818	526	52	increases	increase	VERB
ajst-28818	526	53	.	.	PUNCT
ajst-28818	527	1	figure	figure	NOUN
ajst-28818	527	2	21	21	NUM
ajst-28818	527	3	.	.	PUNCT
ajst-28818	528	1	lateral	lateral	ADJ
ajst-28818	528	2	time	time	NOUN
ajst-28818	528	3	-	-	PUNCT
ajst-28818	528	4	history	history	NOUN
ajst-28818	528	5	response	response	NOUN
ajst-28818	528	6	of	of	ADP
ajst-28818	528	7	drill	drill	NOUN
ajst-28818	528	8	-	-	PUNCT
ajst-28818	528	9	string	string	NOUN
ajst-28818	528	10	in	in	ADP
ajst-28818	528	11	seawater	seawater	NOUN
ajst-28818	528	12	section	section	NOUN
ajst-28818	528	13	fig	fig	NOUN
ajst-28818	528	14	.	.	PUNCT
ajst-28818	529	1	22	22	NUM
ajst-28818	529	2	shows	show	VERB
ajst-28818	529	3	the	the	DET
ajst-28818	529	4	axial	axial	ADJ
ajst-28818	529	5	time	time	NOUN
ajst-28818	529	6	-	-	PUNCT
ajst-28818	529	7	history	history	NOUN
ajst-28818	529	8	response	response	NOUN
ajst-28818	529	9	curve	curve	NOUN
ajst-28818	529	10	of	of	ADP
ajst-28818	529	11	the	the	DET
ajst-28818	529	12	top	top	NOUN
ajst-28818	529	13	of	of	ADP
ajst-28818	529	14	the	the	DET
ajst-28818	529	15	drill	drill	NOUN
ajst-28818	529	16	-	-	PUNCT
ajst-28818	529	17	string	string	NOUN
ajst-28818	529	18	.	.	PUNCT
ajst-28818	530	1	it	it	PRON
ajst-28818	530	2	can	can	AUX
ajst-28818	530	3	be	be	AUX
ajst-28818	530	4	seen	see	VERB
ajst-28818	530	5	from	from	ADP
ajst-28818	530	6	the	the	DET
ajst-28818	530	7	time	time	NOUN
ajst-28818	530	8	-	-	PUNCT
ajst-28818	530	9	history	history	NOUN
ajst-28818	530	10	response	response	NOUN
ajst-28818	530	11	diagram	diagram	NOUN
ajst-28818	530	12	of	of	ADP
ajst-28818	530	13	axial	axial	ADJ
ajst-28818	530	14	displacement	displacement	NOUN
ajst-28818	530	15	at	at	ADP
ajst-28818	530	16	the	the	DET
ajst-28818	530	17	top	top	NOUN
ajst-28818	530	18	of	of	ADP
ajst-28818	530	19	the	the	DET
ajst-28818	530	20	drillstring	drillstring	NOUN
ajst-28818	530	21	in	in	ADP
ajst-28818	530	22	fig	fig	NOUN
ajst-28818	530	23	.	.	PUNCT
ajst-28818	531	1	22	22	NUM
ajst-28818	531	2	(	(	PUNCT
ajst-28818	531	3	a	a	NOUN
ajst-28818	531	4	)	)	PUNCT
ajst-28818	531	5	that	that	SCONJ
ajst-28818	531	6	the	the	DET
ajst-28818	531	7	amplitude	amplitude	NOUN
ajst-28818	531	8	of	of	ADP
ajst-28818	531	9	axial	axial	ADJ
ajst-28818	531	10	displacement	displacement	NOUN
ajst-28818	531	11	fluctuation	fluctuation	NOUN
ajst-28818	531	12	decreases	decrease	VERB
ajst-28818	531	13	with	with	ADP
ajst-28818	531	14	the	the	DET
ajst-28818	531	15	decrease	decrease	NOUN
ajst-28818	531	16	of	of	ADP
ajst-28818	531	17	heave	heave	ADJ
ajst-28818	531	18	amplitude	amplitude	NOUN
ajst-28818	531	19	.	.	PUNCT
ajst-28818	532	1	at	at	ADP
ajst-28818	532	2	the	the	DET
ajst-28818	532	3	same	same	ADJ
ajst-28818	532	4	time	time	NOUN
ajst-28818	532	5	,	,	PUNCT
ajst-28818	532	6	it	it	PRON
ajst-28818	532	7	can	can	AUX
ajst-28818	532	8	be	be	AUX
ajst-28818	532	9	found	find	VERB
ajst-28818	532	10	that	that	SCONJ
ajst-28818	532	11	the	the	DET
ajst-28818	532	12	slow	slow	ADJ
ajst-28818	532	13	drift	drift	NOUN
ajst-28818	532	14	movement	movement	NOUN
ajst-28818	532	15	of	of	ADP
ajst-28818	532	16	the	the	DET
ajst-28818	532	17	platform	platform	NOUN
ajst-28818	532	18	is	be	AUX
ajst-28818	532	19	the	the	DET
ajst-28818	532	20	main	main	ADJ
ajst-28818	532	21	influencing	influence	VERB
ajst-28818	532	22	factor	factor	NOUN
ajst-28818	532	23	for	for	ADP
ajst-28818	532	24	the	the	DET
ajst-28818	532	25	axial	axial	ADJ
ajst-28818	532	26	displacement	displacement	NOUN
ajst-28818	532	27	of	of	ADP
ajst-28818	532	28	the	the	DET
ajst-28818	532	29	top	top	NOUN
ajst-28818	532	30	of	of	ADP
ajst-28818	532	31	the	the	DET
ajst-28818	532	32	drill	drill	NOUN
ajst-28818	532	33	-	-	PUNCT
ajst-28818	532	34	string	string	NOUN
ajst-28818	532	35	,	,	PUNCT
ajst-28818	532	36	while	while	SCONJ
ajst-28818	532	37	the	the	DET
ajst-28818	532	38	heave	heave	PROPN
ajst-28818	532	39	movement	movement	NOUN
ajst-28818	532	40	of	of	ADP
ajst-28818	532	41	the	the	DET
ajst-28818	532	42	platform	platform	NOUN
ajst-28818	532	43	has	have	VERB
ajst-28818	532	44	relatively	relatively	ADV
ajst-28818	532	45	little	little	ADJ
ajst-28818	532	46	influence	influence	NOUN
ajst-28818	532	47	because	because	SCONJ
ajst-28818	532	48	it	it	PRON
ajst-28818	532	49	is	be	AUX
ajst-28818	532	50	compensated	compensate	VERB
ajst-28818	532	51	by	by	ADP
ajst-28818	532	52	the	the	DET
ajst-28818	532	53	heave	heave	PROPN
ajst-28818	532	54	compensator	compensator	NOUN
ajst-28818	532	55	.	.	PUNCT
ajst-28818	533	1	fig	fig	NOUN
ajst-28818	533	2	.	.	PUNCT
ajst-28818	534	1	22	22	NUM
ajst-28818	534	2	(	(	PUNCT
ajst-28818	534	3	b	b	NOUN
ajst-28818	534	4	)	)	PUNCT
ajst-28818	534	5	shows	show	VERB
ajst-28818	534	6	the	the	DET
ajst-28818	534	7	difference	difference	NOUN
ajst-28818	534	8	between	between	ADP
ajst-28818	534	9	the	the	DET
ajst-28818	534	10	axial	axial	ADJ
ajst-28818	534	11	displacement	displacement	NOUN
ajst-28818	534	12	at	at	ADP
ajst-28818	534	13	the	the	DET
ajst-28818	534	14	top	top	NOUN
ajst-28818	534	15	of	of	ADP
ajst-28818	534	16	the	the	DET
ajst-28818	534	17	drill	drill	NOUN
ajst-28818	534	18	-	-	PUNCT
ajst-28818	534	19	string	string	NOUN
ajst-28818	534	20	and	and	CCONJ
ajst-28818	534	21	the	the	DET
ajst-28818	534	22	platform	platform	NOUN
ajst-28818	534	23	,	,	PUNCT
ajst-28818	534	24	that	that	ADV
ajst-28818	534	25	is	is	ADV
ajst-28818	534	26	,	,	PUNCT
ajst-28818	534	27	the	the	DET
ajst-28818	534	28	extensibility	extensibility	NOUN
ajst-28818	534	29	of	of	ADP
ajst-28818	534	30	the	the	DET
ajst-28818	534	31	heave	heave	NOUN
ajst-28818	534	32	compensator	compensator	NOUN
ajst-28818	534	33	.	.	PUNCT
ajst-28818	535	1	it	it	PRON
ajst-28818	535	2	can	can	AUX
ajst-28818	535	3	be	be	AUX
ajst-28818	535	4	seen	see	VERB
ajst-28818	535	5	that	that	SCONJ
ajst-28818	535	6	the	the	DET
ajst-28818	535	7	maximum	maximum	ADJ
ajst-28818	535	8	extensibility	extensibility	NOUN
ajst-28818	535	9	increases	increase	VERB
ajst-28818	535	10	with	with	ADP
ajst-28818	535	11	the	the	DET
ajst-28818	535	12	increase	increase	NOUN
ajst-28818	535	13	of	of	ADP
ajst-28818	535	14	the	the	DET
ajst-28818	535	15	heave	heave	ADJ
ajst-28818	535	16	amplitude	amplitude	NOUN
ajst-28818	535	17	.	.	PUNCT
ajst-28818	536	1	therefore	therefore	ADV
ajst-28818	536	2	,	,	PUNCT
ajst-28818	536	3	when	when	SCONJ
ajst-28818	536	4	the	the	DET
ajst-28818	536	5	heave	heave	ADJ
ajst-28818	536	6	amplitude	amplitude	NOUN
ajst-28818	536	7	is	be	AUX
ajst-28818	536	8	large	large	ADJ
ajst-28818	536	9	,	,	PUNCT
ajst-28818	536	10	the	the	DET
ajst-28818	536	11	compensation	compensation	NOUN
ajst-28818	536	12	cylinder	cylinder	NOUN
ajst-28818	536	13	stroke	stroke	NOUN
ajst-28818	536	14	of	of	ADP
ajst-28818	536	15	the	the	DET
ajst-28818	536	16	heave	heave	NOUN
ajst-28818	536	17	compensator	compensator	NOUN
ajst-28818	536	18	should	should	AUX
ajst-28818	536	19	be	be	AUX
ajst-28818	536	20	increased	increase	VERB
ajst-28818	536	21	.	.	PUNCT
ajst-28818	537	1	figure	figure	NOUN
ajst-28818	537	2	22	22	NUM
ajst-28818	537	3	.	.	PUNCT
ajst-28818	538	1	axial	axial	ADJ
ajst-28818	538	2	time	time	NOUN
ajst-28818	538	3	-	-	PUNCT
ajst-28818	538	4	history	history	NOUN
ajst-28818	538	5	response	response	NOUN
ajst-28818	538	6	of	of	ADP
ajst-28818	538	7	the	the	DET
ajst-28818	538	8	drill	drill	NOUN
ajst-28818	538	9	-	-	PUNCT
ajst-28818	538	10	string	string	NOUN
ajst-28818	538	11	top	top	NOUN
ajst-28818	538	12	:	:	PUNCT
ajst-28818	538	13	(	(	PUNCT
ajst-28818	538	14	a	a	X
ajst-28818	538	15	)	)	PUNCT
ajst-28818	538	16	displacement	displacement	NOUN
ajst-28818	538	17	,	,	PUNCT
ajst-28818	538	18	and	and	CCONJ
ajst-28818	538	19	(	(	PUNCT
ajst-28818	538	20	b	b	NOUN
ajst-28818	538	21	)	)	PUNCT
ajst-28818	538	22	relative	relative	ADJ
ajst-28818	538	23	displacement	displacement	NOUN
ajst-28818	538	24	between	between	ADP
ajst-28818	538	25	the	the	DET
ajst-28818	538	26	platform	platform	NOUN
ajst-28818	538	27	and	and	CCONJ
ajst-28818	538	28	the	the	DET
ajst-28818	538	29	drill	drill	NOUN
ajst-28818	538	30	-	-	PUNCT
ajst-28818	538	31	string	string	NOUN
ajst-28818	538	32	top	top	ADJ
ajst-28818	538	33	fig	fig	NOUN
ajst-28818	538	34	.	.	PUNCT
ajst-28818	539	1	23	23	NUM
ajst-28818	539	2	(	(	PUNCT
ajst-28818	539	3	a	a	X
ajst-28818	539	4	)	)	PUNCT
ajst-28818	539	5	is	be	AUX
ajst-28818	539	6	the	the	DET
ajst-28818	539	7	response	response	NOUN
ajst-28818	539	8	diagram	diagram	NOUN
ajst-28818	539	9	of	of	ADP
ajst-28818	539	10	wob	wob	NOUN
ajst-28818	539	11	time	time	NOUN
ajst-28818	539	12	history	history	NOUN
ajst-28818	539	13	.	.	PUNCT
ajst-28818	540	1	it	it	PRON
ajst-28818	540	2	can	can	AUX
ajst-28818	540	3	be	be	AUX
ajst-28818	540	4	found	find	VERB
ajst-28818	540	5	that	that	SCONJ
ajst-28818	540	6	platform	platform	NOUN
ajst-28818	540	7	heave	heave	PROPN
ajst-28818	540	8	movement	movement	NOUN
ajst-28818	540	9	has	have	VERB
ajst-28818	540	10	a	a	DET
ajst-28818	540	11	significant	significant	ADJ
ajst-28818	540	12	impact	impact	NOUN
ajst-28818	540	13	on	on	ADP
ajst-28818	540	14	bit	bit	NOUN
ajst-28818	540	15	pressure	pressure	NOUN
ajst-28818	540	16	,	,	PUNCT
ajst-28818	540	17	and	and	CCONJ
ajst-28818	540	18	the	the	DET
ajst-28818	540	19	larger	large	ADJ
ajst-28818	540	20	the	the	DET
ajst-28818	540	21	heave	heave	ADJ
ajst-28818	540	22	amplitude	amplitude	NOUN
ajst-28818	540	23	,	,	PUNCT
ajst-28818	540	24	the	the	PRON
ajst-28818	540	25	larger	large	ADJ
ajst-28818	540	26	the	the	DET
ajst-28818	540	27	bit	bit	NOUN
ajst-28818	540	28	pressure	pressure	NOUN
ajst-28818	540	29	fluctuation	fluctuation	NOUN
ajst-28818	540	30	range	range	NOUN
ajst-28818	540	31	.	.	PUNCT
ajst-28818	541	1	fig	fig	NOUN
ajst-28818	541	2	.	.	PUNCT
ajst-28818	542	1	23	23	NUM
ajst-28818	542	2	(	(	PUNCT
ajst-28818	542	3	b	b	NOUN
ajst-28818	542	4	)	)	PUNCT
ajst-28818	542	5	(	(	PUNCT
ajst-28818	542	6	d	d	X
ajst-28818	542	7	)	)	PUNCT
ajst-28818	542	8	shows	show	VERB
ajst-28818	542	9	the	the	DET
ajst-28818	542	10	amplitude	amplitude	NOUN
ajst-28818	542	11	-	-	PUNCT
ajst-28818	542	12	frequency	frequency	NOUN
ajst-28818	542	13	response	response	NOUN
ajst-28818	542	14	curve	curve	NOUN
ajst-28818	542	15	of	of	ADP
ajst-28818	542	16	bit	bit	NOUN
ajst-28818	542	17	weight	weight	NOUN
ajst-28818	542	18	.	.	PUNCT
ajst-28818	543	1	since	since	SCONJ
ajst-28818	543	2	the	the	DET
ajst-28818	543	3	slow	slow	ADJ
ajst-28818	543	4	drift	drift	NOUN
ajst-28818	543	5	motion	motion	NOUN
ajst-28818	543	6	is	be	AUX
ajst-28818	543	7	the	the	DET
ajst-28818	543	8	same	same	ADJ
ajst-28818	543	9	,	,	PUNCT
ajst-28818	543	10	there	there	PRON
ajst-28818	543	11	is	be	VERB
ajst-28818	543	12	little	little	ADJ
ajst-28818	543	13	difference	difference	NOUN
ajst-28818	543	14	in	in	ADP
ajst-28818	543	15	the	the	DET
ajst-28818	543	16	amplitudes	amplitude	NOUN
ajst-28818	543	17	of	of	ADP
ajst-28818	543	18	the	the	DET
ajst-28818	543	19	corresponding	corresponding	ADJ
ajst-28818	543	20	frequency	frequency	NOUN
ajst-28818	543	21	components	component	NOUN
ajst-28818	543	22	,	,	PUNCT
ajst-28818	543	23	and	and	CCONJ
ajst-28818	543	24	the	the	DET
ajst-28818	543	25	amplitude	amplitude	NOUN
ajst-28818	543	26	of	of	ADP
ajst-28818	543	27	the	the	DET
ajst-28818	543	28	corresponding	corresponding	ADJ
ajst-28818	543	29	frequency	frequency	NOUN
ajst-28818	543	30	component	component	NOUN
ajst-28818	543	31	of	of	ADP
ajst-28818	543	32	the	the	DET
ajst-28818	543	33	heave	heave	ADJ
ajst-28818	543	34	motion	motion	NOUN
ajst-28818	543	35	increases	increase	NOUN
ajst-28818	543	36	with	with	ADP
ajst-28818	543	37	the	the	DET
ajst-28818	543	38	heave	heave	ADJ
ajst-28818	543	39	amplitude	amplitude	NOUN
ajst-28818	543	40	and	and	CCONJ
ajst-28818	543	41	is	be	AUX
ajst-28818	543	42	proportional	proportional	ADJ
ajst-28818	543	43	.	.	PUNCT
ajst-28818	544	1	302	302	NUM
ajst-28818	544	2	figure	figure	NOUN
ajst-28818	544	3	23	23	NUM
ajst-28818	544	4	.	.	PUNCT
ajst-28818	545	1	wob	wob	NOUN
ajst-28818	545	2	time	time	PROPN
ajst-28818	545	3	history	history	NOUN
ajst-28818	545	4	curve	curve	NOUN
ajst-28818	545	5	and	and	CCONJ
ajst-28818	545	6	amplitude	amplitude	NOUN
ajst-28818	545	7	-	-	PUNCT
ajst-28818	545	8	frequency	frequency	NOUN
ajst-28818	545	9	response	response	NOUN
ajst-28818	545	10	curve	curve	NOUN
ajst-28818	545	11	figure	figure	NOUN
ajst-28818	545	12	24	24	NUM
ajst-28818	545	13	.	.	PUNCT
ajst-28818	546	1	bit	bit	NOUN
ajst-28818	546	2	torsional	torsional	ADJ
ajst-28818	546	3	response	response	NOUN
ajst-28818	546	4	:	:	PUNCT
ajst-28818	546	5	(	(	PUNCT
ajst-28818	546	6	a	a	X
ajst-28818	546	7	)	)	PUNCT
ajst-28818	546	8	friction	friction	NOUN
ajst-28818	546	9	torque	torque	NOUN
ajst-28818	546	10	,	,	PUNCT
ajst-28818	546	11	(	(	PUNCT
ajst-28818	546	12	b	b	NOUN
ajst-28818	546	13	)	)	PUNCT
ajst-28818	546	14	displacement	displacement	NOUN
ajst-28818	546	15	,	,	PUNCT
ajst-28818	546	16	(	(	PUNCT
ajst-28818	546	17	c	c	NOUN
ajst-28818	546	18	)	)	PUNCT
ajst-28818	546	19	speed	speed	NOUN
ajst-28818	546	20	,	,	PUNCT
ajst-28818	546	21	(	(	PUNCT
ajst-28818	546	22	d)-(i	d)-(i	NOUN
ajst-28818	546	23	)	)	PUNCT
ajst-28818	546	24	speed	speed	NOUN
ajst-28818	546	25	amplitude	amplitude	NOUN
ajst-28818	546	26	-	-	PUNCT
ajst-28818	546	27	frequency	frequency	NOUN
ajst-28818	546	28	response	response	NOUN
ajst-28818	546	29	,	,	PUNCT
ajst-28818	546	30	phase	phase	NOUN
ajst-28818	546	31	diagram	diagram	NOUN
ajst-28818	546	32	and	and	CCONJ
ajst-28818	546	33	poincaré	poincaré	PROPN
ajst-28818	546	34	map	map	VERB
ajst-28818	546	35	303	303	NUM
ajst-28818	546	36	fig	fig	NOUN
ajst-28818	546	37	.	.	PUNCT
ajst-28818	547	1	24	24	NUM
ajst-28818	547	2	is	be	AUX
ajst-28818	547	3	the	the	DET
ajst-28818	547	4	torsional	torsional	ADJ
ajst-28818	547	5	response	response	NOUN
ajst-28818	547	6	of	of	ADP
ajst-28818	547	7	the	the	DET
ajst-28818	547	8	bit	bit	NOUN
ajst-28818	547	9	,	,	PUNCT
ajst-28818	547	10	and	and	CCONJ
ajst-28818	547	11	fig	fig	NOUN
ajst-28818	547	12	.	.	PUNCT
ajst-28818	548	1	24	24	NUM
ajst-28818	548	2	(	(	PUNCT
ajst-28818	548	3	a	a	NOUN
ajst-28818	548	4	)	)	PUNCT
ajst-28818	548	5	(	(	PUNCT
ajst-28818	548	6	c	c	X
ajst-28818	548	7	)	)	PUNCT
ajst-28818	548	8	is	be	AUX
ajst-28818	548	9	the	the	DET
ajst-28818	548	10	time	time	NOUN
ajst-28818	548	11	-	-	PUNCT
ajst-28818	548	12	history	history	NOUN
ajst-28818	548	13	response	response	NOUN
ajst-28818	548	14	curve	curve	NOUN
ajst-28818	548	15	of	of	ADP
ajst-28818	548	16	the	the	DET
ajst-28818	548	17	bit	bit	NOUN
ajst-28818	548	18	friction	friction	NOUN
ajst-28818	548	19	torque	torque	NOUN
ajst-28818	548	20	,	,	PUNCT
ajst-28818	548	21	torsional	torsional	ADJ
ajst-28818	548	22	displacement	displacement	NOUN
ajst-28818	548	23	and	and	CCONJ
ajst-28818	548	24	rotational	rotational	ADJ
ajst-28818	548	25	speed	speed	NOUN
ajst-28818	548	26	,	,	PUNCT
ajst-28818	548	27	respectively	respectively	ADV
ajst-28818	548	28	.	.	PUNCT
ajst-28818	549	1	it	it	PRON
ajst-28818	549	2	can	can	AUX
ajst-28818	549	3	be	be	AUX
ajst-28818	549	4	found	find	VERB
ajst-28818	549	5	that	that	SCONJ
ajst-28818	549	6	for	for	ADP
ajst-28818	549	7	the	the	DET
ajst-28818	549	8	heave	heave	ADJ
ajst-28818	549	9	amplitudes	amplitude	NOUN
ajst-28818	549	10	of	of	ADP
ajst-28818	549	11	1.5	1.5	NUM
ajst-28818	549	12	m	m	NOUN
ajst-28818	549	13	,	,	PUNCT
ajst-28818	549	14	the	the	DET
ajst-28818	549	15	bit	bit	NOUN
ajst-28818	549	16	has	have	VERB
ajst-28818	549	17	a	a	DET
ajst-28818	549	18	long	long	ADJ
ajst-28818	549	19	time	time	NOUN
ajst-28818	549	20	inversion	inversion	NOUN
ajst-28818	549	21	torque	torque	NOUN
ajst-28818	549	22	,	,	PUNCT
ajst-28818	549	23	that	that	ADV
ajst-28818	549	24	is	is	ADV
ajst-28818	549	25	,	,	PUNCT
ajst-28818	549	26	the	the	DET
ajst-28818	549	27	tob	tob	NOUN
ajst-28818	549	28	is	be	AUX
ajst-28818	549	29	negative	negative	ADJ
ajst-28818	549	30	and	and	CCONJ
ajst-28818	549	31	the	the	DET
ajst-28818	549	32	bit	bit	NOUN
ajst-28818	549	33	has	have	VERB
ajst-28818	549	34	a	a	DET
ajst-28818	549	35	clear	clear	ADJ
ajst-28818	549	36	inversion	inversion	NOUN
ajst-28818	549	37	phenomenon	phenomenon	NOUN
ajst-28818	549	38	.	.	PUNCT
ajst-28818	550	1	reversing	reverse	VERB
ajst-28818	550	2	the	the	DET
ajst-28818	550	3	bit	bit	NOUN
ajst-28818	550	4	causes	cause	VERB
ajst-28818	550	5	an	an	DET
ajst-28818	550	6	abnormal	abnormal	ADJ
ajst-28818	550	7	working	work	VERB
ajst-28818	550	8	state	state	NOUN
ajst-28818	550	9	of	of	ADP
ajst-28818	550	10	the	the	DET
ajst-28818	550	11	bit	bit	NOUN
ajst-28818	550	12	,	,	PUNCT
ajst-28818	550	13	which	which	PRON
ajst-28818	550	14	can	can	AUX
ajst-28818	550	15	easily	easily	ADV
ajst-28818	550	16	cause	cause	VERB
ajst-28818	550	17	damage	damage	NOUN
ajst-28818	550	18	or	or	CCONJ
ajst-28818	550	19	even	even	ADV
ajst-28818	550	20	fall	fall	NOUN
ajst-28818	550	21	-	-	PUNCT
ajst-28818	550	22	off	off	NOUN
ajst-28818	550	23	of	of	ADP
ajst-28818	550	24	the	the	DET
ajst-28818	550	25	cutter	cutter	NOUN
ajst-28818	550	26	,	,	PUNCT
ajst-28818	550	27	seriously	seriously	ADV
ajst-28818	550	28	affecting	affect	VERB
ajst-28818	550	29	the	the	DET
ajst-28818	550	30	life	life	NOUN
ajst-28818	550	31	of	of	ADP
ajst-28818	550	32	the	the	DET
ajst-28818	550	33	bit	bit	NOUN
ajst-28818	550	34	.	.	PUNCT
ajst-28818	551	1	in	in	ADP
ajst-28818	551	2	addition	addition	NOUN
ajst-28818	551	3	,	,	PUNCT
ajst-28818	551	4	the	the	DET
ajst-28818	551	5	maximum	maximum	ADJ
ajst-28818	551	6	drill	drill	NOUN
ajst-28818	551	7	speed	speed	NOUN
ajst-28818	551	8	is	be	AUX
ajst-28818	551	9	more	more	ADJ
ajst-28818	551	10	than	than	ADP
ajst-28818	551	11	4.6	4.6	NUM
ajst-28818	551	12	times	time	NOUN
ajst-28818	551	13	the	the	DET
ajst-28818	551	14	rotary	rotary	ADJ
ajst-28818	551	15	speed	speed	NOUN
ajst-28818	551	16	(	(	PUNCT
ajst-28818	551	17	23	23	NUM
ajst-28818	551	18	rad	rad	PROPN
ajst-28818	551	19	/	/	SYM
ajst-28818	551	20	s	s	NOUN
ajst-28818	551	21	)	)	PUNCT
ajst-28818	551	22	,	,	PUNCT
ajst-28818	551	23	which	which	PRON
ajst-28818	551	24	will	will	AUX
ajst-28818	551	25	undoubtedly	undoubtedly	ADV
ajst-28818	551	26	accelerate	accelerate	VERB
ajst-28818	551	27	the	the	DET
ajst-28818	551	28	wear	wear	NOUN
ajst-28818	551	29	of	of	ADP
ajst-28818	551	30	the	the	DET
ajst-28818	551	31	drill	drill	NOUN
ajst-28818	551	32	bit	bit	NOUN
ajst-28818	551	33	.	.	PUNCT
ajst-28818	552	1	combined	combine	VERB
ajst-28818	552	2	with	with	ADP
ajst-28818	552	3	the	the	DET
ajst-28818	552	4	bit	bit	NOUN
ajst-28818	552	5	torsional	torsional	ADJ
ajst-28818	552	6	amplitude	amplitude	NOUN
ajst-28818	552	7	-	-	PUNCT
ajst-28818	552	8	frequency	frequency	NOUN
ajst-28818	552	9	response	response	NOUN
ajst-28818	552	10	curves	curve	NOUN
ajst-28818	552	11	in	in	ADP
ajst-28818	552	12	fig	fig	NOUN
ajst-28818	552	13	.	.	PUNCT
ajst-28818	553	1	24	24	NUM
ajst-28818	553	2	(	(	PUNCT
ajst-28818	553	3	e	e	NOUN
ajst-28818	553	4	)	)	PUNCT
ajst-28818	553	5	and	and	CCONJ
ajst-28818	553	6	(	(	PUNCT
ajst-28818	553	7	f	f	X
ajst-28818	553	8	)	)	PUNCT
ajst-28818	553	9	,	,	PUNCT
ajst-28818	553	10	it	it	PRON
ajst-28818	553	11	can	can	AUX
ajst-28818	553	12	be	be	AUX
ajst-28818	553	13	found	find	VERB
ajst-28818	553	14	that	that	SCONJ
ajst-28818	553	15	the	the	DET
ajst-28818	553	16	frequency	frequency	NOUN
ajst-28818	553	17	component	component	NOUN
ajst-28818	553	18	with	with	ADP
ajst-28818	553	19	the	the	DET
ajst-28818	553	20	largest	large	ADJ
ajst-28818	553	21	amplitude	amplitude	NOUN
ajst-28818	553	22	is	be	AUX
ajst-28818	553	23	0.0875hz	0.0875hz	NUM
ajst-28818	553	24	,	,	PUNCT
ajst-28818	553	25	which	which	PRON
ajst-28818	553	26	is	be	AUX
ajst-28818	553	27	consistent	consistent	ADJ
ajst-28818	553	28	with	with	ADP
ajst-28818	553	29	the	the	DET
ajst-28818	553	30	heave	heave	ADJ
ajst-28818	553	31	frequency	frequency	NOUN
ajst-28818	553	32	,	,	PUNCT
ajst-28818	553	33	that	that	ADV
ajst-28818	553	34	is	is	ADV
ajst-28818	553	35	,	,	PUNCT
ajst-28818	553	36	the	the	DET
ajst-28818	553	37	drill	drill	NOUN
ajst-28818	553	38	-	-	PUNCT
ajst-28818	553	39	string	string	NOUN
ajst-28818	553	40	torsional	torsional	ADJ
ajst-28818	553	41	vibration	vibration	NOUN
ajst-28818	553	42	resonates	resonate	VERB
ajst-28818	553	43	with	with	ADP
ajst-28818	553	44	the	the	DET
ajst-28818	553	45	axial	axial	ADJ
ajst-28818	553	46	vibration	vibration	NOUN
ajst-28818	553	47	.	.	PUNCT
ajst-28818	554	1	when	when	SCONJ
ajst-28818	554	2	the	the	DET
ajst-28818	554	3	heave	heave	ADJ
ajst-28818	554	4	amplitude	amplitude	NOUN
ajst-28818	554	5	in	in	ADP
ajst-28818	554	6	fig	fig	NOUN
ajst-28818	554	7	.	.	PUNCT
ajst-28818	555	1	24	24	NUM
ajst-28818	555	2	(	(	PUNCT
ajst-28818	555	3	e	e	NOUN
ajst-28818	555	4	)	)	PUNCT
ajst-28818	555	5	and	and	CCONJ
ajst-28818	555	6	(	(	PUNCT
ajst-28818	555	7	f	f	X
ajst-28818	555	8	)	)	PUNCT
ajst-28818	555	9	is	be	AUX
ajst-28818	555	10	larger	large	ADJ
ajst-28818	555	11	,	,	PUNCT
ajst-28818	555	12	the	the	DET
ajst-28818	555	13	amplitude	amplitude	NOUN
ajst-28818	555	14	-	-	PUNCT
ajst-28818	555	15	frequency	frequency	NOUN
ajst-28818	555	16	response	response	NOUN
ajst-28818	555	17	has	have	VERB
ajst-28818	555	18	two	two	NUM
ajst-28818	555	19	more	more	ADV
ajst-28818	555	20	high	high	ADJ
ajst-28818	555	21	-	-	PUNCT
ajst-28818	555	22	energy	energy	NOUN
ajst-28818	555	23	frequency	frequency	NOUN
ajst-28818	555	24	components	component	NOUN
ajst-28818	555	25	than	than	ADP
ajst-28818	555	26	when	when	SCONJ
ajst-28818	555	27	the	the	DET
ajst-28818	555	28	heave	heave	ADJ
ajst-28818	555	29	amplitude	amplitude	NOUN
ajst-28818	555	30	in	in	ADP
ajst-28818	555	31	fig	fig	NOUN
ajst-28818	555	32	.	.	PUNCT
ajst-28818	556	1	24	24	NUM
ajst-28818	556	2	(	(	PUNCT
ajst-28818	556	3	d	d	NOUN
ajst-28818	556	4	)	)	PUNCT
ajst-28818	556	5	is	be	AUX
ajst-28818	556	6	smaller	small	ADJ
ajst-28818	556	7	,	,	PUNCT
ajst-28818	556	8	which	which	PRON
ajst-28818	556	9	is	be	AUX
ajst-28818	556	10	also	also	ADV
ajst-28818	556	11	detrimental	detrimental	ADJ
ajst-28818	556	12	to	to	ADP
ajst-28818	556	13	the	the	DET
ajst-28818	556	14	bit	bit	NOUN
ajst-28818	556	15	life	life	NOUN
ajst-28818	556	16	.	.	PUNCT
ajst-28818	557	1	fig	fig	NOUN
ajst-28818	557	2	.	.	PUNCT
ajst-28818	558	1	24	24	NUM
ajst-28818	558	2	(	(	PUNCT
ajst-28818	558	3	g	g	NOUN
ajst-28818	558	4	)	)	PUNCT
ajst-28818	558	5	(	(	PUNCT
ajst-28818	558	6	i	i	NOUN
ajst-28818	558	7	)	)	PUNCT
ajst-28818	558	8	shows	show	VERB
ajst-28818	558	9	the	the	DET
ajst-28818	558	10	twist	twist	NOUN
ajst-28818	558	11	phase	phase	NOUN
ajst-28818	558	12	diagram	diagram	NOUN
ajst-28818	558	13	and	and	CCONJ
ajst-28818	558	14	poincaré	poincaré	PROPN
ajst-28818	558	15	mapping	mapping	NOUN
ajst-28818	558	16	of	of	ADP
ajst-28818	558	17	the	the	DET
ajst-28818	558	18	bit	bit	NOUN
ajst-28818	558	19	.	.	PUNCT
ajst-28818	559	1	it	it	PRON
ajst-28818	559	2	can	can	AUX
ajst-28818	559	3	be	be	AUX
ajst-28818	559	4	found	find	VERB
ajst-28818	559	5	that	that	SCONJ
ajst-28818	559	6	when	when	SCONJ
ajst-28818	559	7	the	the	DET
ajst-28818	559	8	heave	heave	ADJ
ajst-28818	559	9	amplitude	amplitude	NOUN
ajst-28818	559	10	reaches	reach	VERB
ajst-28818	559	11	1	1	NUM
ajst-28818	559	12	m	m	NOUN
ajst-28818	559	13	,	,	PUNCT
ajst-28818	559	14	the	the	DET
ajst-28818	559	15	phase	phase	NOUN
ajst-28818	559	16	diagram	diagram	NOUN
ajst-28818	559	17	rapidly	rapidly	ADV
ajst-28818	559	18	expands	expand	VERB
ajst-28818	559	19	into	into	ADP
ajst-28818	559	20	a	a	DET
ajst-28818	559	21	ring	ring	NOUN
ajst-28818	559	22	and	and	CCONJ
ajst-28818	559	23	the	the	DET
ajst-28818	559	24	poincaré	poincaré	PROPN
ajst-28818	559	25	map	map	NOUN
ajst-28818	559	26	points	point	NOUN
ajst-28818	559	27	are	be	AUX
ajst-28818	559	28	relatively	relatively	ADV
ajst-28818	559	29	concentrated	concentrated	ADJ
ajst-28818	559	30	.	.	PUNCT
ajst-28818	560	1	for	for	ADP
ajst-28818	560	2	a	a	DET
ajst-28818	560	3	heave	heave	ADJ
ajst-28818	560	4	amplitude	amplitude	NOUN
ajst-28818	560	5	of	of	ADP
ajst-28818	560	6	1.5	1.5	NUM
ajst-28818	560	7	m	m	NOUN
ajst-28818	560	8	,	,	PUNCT
ajst-28818	560	9	the	the	DET
ajst-28818	560	10	phase	phase	NOUN
ajst-28818	560	11	diagram	diagram	NOUN
ajst-28818	560	12	continues	continue	VERB
ajst-28818	560	13	to	to	PART
ajst-28818	560	14	expand	expand	VERB
ajst-28818	560	15	to	to	ADP
ajst-28818	560	16	the	the	DET
ajst-28818	560	17	left	left	NOUN
ajst-28818	560	18	and	and	CCONJ
ajst-28818	560	19	the	the	DET
ajst-28818	560	20	minimum	minimum	ADJ
ajst-28818	560	21	relative	relative	ADJ
ajst-28818	560	22	twist	twist	NOUN
ajst-28818	560	23	angle	angle	NOUN
ajst-28818	560	24	reaches	reach	VERB
ajst-28818	560	25	-8	-8	PROPN
ajst-28818	560	26	rad	rad	PROPN
ajst-28818	560	27	,	,	PUNCT
ajst-28818	560	28	that	that	ADV
ajst-28818	560	29	is	is	ADV
ajst-28818	560	30	,	,	PUNCT
ajst-28818	560	31	the	the	DET
ajst-28818	560	32	bit	bit	NOUN
ajst-28818	560	33	twist	twist	NOUN
ajst-28818	560	34	angle	angle	NOUN
ajst-28818	560	35	displacement	displacement	NOUN
ajst-28818	560	36	is	be	AUX
ajst-28818	560	37	much	much	ADV
ajst-28818	560	38	larger	large	ADJ
ajst-28818	560	39	than	than	ADP
ajst-28818	560	40	the	the	DET
ajst-28818	560	41	rotation	rotation	NOUN
ajst-28818	560	42	angle	angle	NOUN
ajst-28818	560	43	,	,	PUNCT
ajst-28818	560	44	which	which	PRON
ajst-28818	560	45	is	be	AUX
ajst-28818	560	46	also	also	ADV
ajst-28818	560	47	responsible	responsible	ADJ
ajst-28818	560	48	for	for	ADP
ajst-28818	560	49	the	the	DET
ajst-28818	560	50	bit	bit	NOUN
ajst-28818	560	51	reversal	reversal	NOUN
ajst-28818	560	52	.	.	PUNCT
ajst-28818	561	1	at	at	ADP
ajst-28818	561	2	the	the	DET
ajst-28818	561	3	same	same	ADJ
ajst-28818	561	4	time	time	NOUN
ajst-28818	561	5	,	,	PUNCT
ajst-28818	561	6	the	the	DET
ajst-28818	561	7	poincaré	poincaré	PROPN
ajst-28818	561	8	map	map	NOUN
ajst-28818	561	9	is	be	AUX
ajst-28818	561	10	more	more	ADV
ajst-28818	561	11	concentrated	concentrated	ADJ
ajst-28818	561	12	,	,	PUNCT
ajst-28818	561	13	indicating	indicate	VERB
ajst-28818	561	14	that	that	SCONJ
ajst-28818	561	15	the	the	DET
ajst-28818	561	16	sites	site	NOUN
ajst-28818	561	17	are	be	AUX
ajst-28818	561	18	undergoing	undergo	VERB
ajst-28818	561	19	approximately	approximately	ADV
ajst-28818	561	20	periodic	periodic	ADJ
ajst-28818	561	21	rotations	rotation	NOUN
ajst-28818	561	22	.	.	PUNCT
ajst-28818	562	1	fig	fig	NOUN
ajst-28818	562	2	.	.	PUNCT
ajst-28818	563	1	25	25	NUM
ajst-28818	563	2	shows	show	VERB
ajst-28818	563	3	the	the	DET
ajst-28818	563	4	torsional	torsional	ADJ
ajst-28818	563	5	response	response	NOUN
ajst-28818	563	6	at	at	ADP
ajst-28818	563	7	the	the	DET
ajst-28818	563	8	midpoint	midpoint	NOUN
ajst-28818	563	9	of	of	ADP
ajst-28818	563	10	the	the	DET
ajst-28818	563	11	drill	drill	NOUN
ajst-28818	563	12	-	-	PUNCT
ajst-28818	563	13	string	string	NOUN
ajst-28818	563	14	(	(	PUNCT
ajst-28818	563	15	depth	depth	NOUN
ajst-28818	563	16	1250	1250	NUM
ajst-28818	563	17	m	m	NOUN
ajst-28818	563	18	)	)	PUNCT
ajst-28818	563	19	;	;	PUNCT
ajst-28818	563	20	it	it	PRON
ajst-28818	563	21	can	can	AUX
ajst-28818	563	22	be	be	AUX
ajst-28818	563	23	found	find	VERB
ajst-28818	563	24	that	that	SCONJ
ajst-28818	563	25	the	the	DET
ajst-28818	563	26	torsional	torsional	ADJ
ajst-28818	563	27	vibration	vibration	NOUN
ajst-28818	563	28	of	of	ADP
ajst-28818	563	29	the	the	DET
ajst-28818	563	30	drill	drill	NOUN
ajst-28818	563	31	-	-	PUNCT
ajst-28818	563	32	string	string	NOUN
ajst-28818	563	33	at	at	ADP
ajst-28818	563	34	the	the	DET
ajst-28818	563	35	heave	heave	ADJ
ajst-28818	563	36	amplitude	amplitude	NOUN
ajst-28818	563	37	of	of	ADP
ajst-28818	563	38	1	1	NUM
ajst-28818	563	39	m	m	NOUN
ajst-28818	563	40	and	and	CCONJ
ajst-28818	563	41	1.5	1.5	NUM
ajst-28818	563	42	m	m	NOUN
ajst-28818	563	43	also	also	ADV
ajst-28818	563	44	resonates	resonate	VERB
ajst-28818	563	45	with	with	ADP
ajst-28818	563	46	the	the	DET
ajst-28818	563	47	axial	axial	ADJ
ajst-28818	563	48	direction	direction	NOUN
ajst-28818	563	49	,	,	PUNCT
ajst-28818	563	50	and	and	CCONJ
ajst-28818	563	51	there	there	PRON
ajst-28818	563	52	is	be	VERB
ajst-28818	563	53	a	a	DET
ajst-28818	563	54	larger	large	ADJ
ajst-28818	563	55	frequency	frequency	NOUN
ajst-28818	563	56	component	component	NOUN
ajst-28818	563	57	of	of	ADP
ajst-28818	563	58	0.0875	0.0875	NUM
ajst-28818	563	59	hz	hz	NOUN
ajst-28818	563	60	.	.	PUNCT
ajst-28818	564	1	at	at	ADP
ajst-28818	564	2	the	the	DET
ajst-28818	564	3	same	same	ADJ
ajst-28818	564	4	time	time	NOUN
ajst-28818	564	5	,	,	PUNCT
ajst-28818	564	6	from	from	ADP
ajst-28818	564	7	fig	fig	NOUN
ajst-28818	564	8	.	.	PUNCT
ajst-28818	565	1	25	25	NUM
ajst-28818	565	2	(	(	PUNCT
ajst-28818	565	3	e	e	NOUN
ajst-28818	565	4	)	)	PUNCT
ajst-28818	565	5	(	(	PUNCT
ajst-28818	565	6	g	g	NOUN
ajst-28818	565	7	)	)	PUNCT
ajst-28818	565	8	,	,	PUNCT
ajst-28818	565	9	when	when	SCONJ
ajst-28818	565	10	the	the	DET
ajst-28818	565	11	heave	heave	ADJ
ajst-28818	565	12	amplitude	amplitude	NOUN
ajst-28818	565	13	is	be	AUX
ajst-28818	565	14	larger	large	ADJ
ajst-28818	565	15	,	,	PUNCT
ajst-28818	565	16	the	the	DET
ajst-28818	565	17	phase	phase	NOUN
ajst-28818	565	18	trajectory	trajectory	NOUN
ajst-28818	565	19	expands	expand	VERB
ajst-28818	565	20	to	to	ADP
ajst-28818	565	21	the	the	DET
ajst-28818	565	22	left	left	NOUN
ajst-28818	565	23	,	,	PUNCT
ajst-28818	565	24	which	which	PRON
ajst-28818	565	25	means	mean	VERB
ajst-28818	565	26	that	that	SCONJ
ajst-28818	565	27	the	the	DET
ajst-28818	565	28	drill	drill	NOUN
ajst-28818	565	29	-	-	PUNCT
ajst-28818	565	30	string	string	NOUN
ajst-28818	565	31	has	have	VERB
ajst-28818	565	32	greater	great	ADJ
ajst-28818	565	33	torsional	torsional	ADJ
ajst-28818	565	34	deformation	deformation	NOUN
ajst-28818	565	35	and	and	CCONJ
ajst-28818	565	36	is	be	AUX
ajst-28818	565	37	subjected	subject	VERB
ajst-28818	565	38	to	to	ADP
ajst-28818	565	39	greater	great	ADJ
ajst-28818	565	40	torque	torque	NOUN
ajst-28818	565	41	,	,	PUNCT
ajst-28818	565	42	which	which	PRON
ajst-28818	565	43	affects	affect	VERB
ajst-28818	565	44	the	the	DET
ajst-28818	565	45	drill	drill	NOUN
ajst-28818	565	46	-	-	PUNCT
ajst-28818	565	47	string	string	NOUN
ajst-28818	565	48	life	life	NOUN
ajst-28818	565	49	and	and	CCONJ
ajst-28818	565	50	drilling	drilling	NOUN
ajst-28818	565	51	safety	safety	NOUN
ajst-28818	565	52	.	.	PUNCT
ajst-28818	566	1	as	as	SCONJ
ajst-28818	566	2	can	can	AUX
ajst-28818	566	3	be	be	AUX
ajst-28818	566	4	seen	see	VERB
ajst-28818	566	5	from	from	ADP
ajst-28818	566	6	the	the	DET
ajst-28818	566	7	poincaré	poincaré	PROPN
ajst-28818	566	8	map	map	NOUN
ajst-28818	566	9	points	point	NOUN
ajst-28818	566	10	,	,	PUNCT
ajst-28818	566	11	the	the	DET
ajst-28818	566	12	drillstring	drillstring	NOUN
ajst-28818	566	13	rotates	rotate	VERB
ajst-28818	566	14	quasi	quasi	ADJ
ajst-28818	566	15	-	-	ADJ
ajst-28818	566	16	periodically	periodically	ADV
ajst-28818	566	17	for	for	ADP
ajst-28818	566	18	heave	heave	ADJ
ajst-28818	566	19	amplitudes	amplitude	NOUN
ajst-28818	566	20	of	of	ADP
ajst-28818	566	21	1	1	NUM
ajst-28818	566	22	m	m	NOUN
ajst-28818	566	23	and	and	CCONJ
ajst-28818	566	24	1.5	1.5	NUM
ajst-28818	566	25	m	m	NOUN
ajst-28818	566	26	,	,	PUNCT
ajst-28818	566	27	with	with	ADP
ajst-28818	566	28	stronger	strong	ADJ
ajst-28818	566	29	periodicity	periodicity	NOUN
ajst-28818	566	30	for	for	ADP
ajst-28818	566	31	larger	large	ADJ
ajst-28818	566	32	heave	heave	NOUN
ajst-28818	566	33	amplitudes	amplitude	NOUN
ajst-28818	566	34	.	.	PUNCT
ajst-28818	567	1	therefore	therefore	ADV
ajst-28818	567	2	,	,	PUNCT
ajst-28818	567	3	it	it	PRON
ajst-28818	567	4	is	be	AUX
ajst-28818	567	5	important	important	ADJ
ajst-28818	567	6	to	to	PART
ajst-28818	567	7	limit	limit	VERB
ajst-28818	567	8	the	the	DET
ajst-28818	567	9	heave	heave	ADJ
ajst-28818	567	10	amplitude	amplitude	NOUN
ajst-28818	567	11	of	of	ADP
ajst-28818	567	12	the	the	DET
ajst-28818	567	13	platform	platform	NOUN
ajst-28818	567	14	during	during	ADP
ajst-28818	567	15	the	the	DET
ajst-28818	567	16	drilling	drilling	NOUN
ajst-28818	567	17	operation	operation	NOUN
ajst-28818	567	18	.	.	PUNCT
ajst-28818	568	1	figure	figure	NOUN
ajst-28818	568	2	25	25	NUM
ajst-28818	568	3	.	.	PUNCT
ajst-28818	569	1	torsion	torsion	NOUN
ajst-28818	569	2	-	-	PUNCT
ajst-28818	569	3	response	response	NOUN
ajst-28818	569	4	of	of	ADP
ajst-28818	569	5	drill	drill	NOUN
ajst-28818	569	6	-	-	PUNCT
ajst-28818	569	7	string	string	NOUN
ajst-28818	569	8	at	at	ADP
ajst-28818	569	9	1250	1250	NUM
ajst-28818	569	10	m	m	NOUN
ajst-28818	569	11	depth	depth	NOUN
ajst-28818	569	12	:	:	PUNCT
ajst-28818	569	13	(	(	PUNCT
ajst-28818	569	14	a	a	X
ajst-28818	569	15	)	)	PUNCT
ajst-28818	569	16	rotational	rotational	ADJ
ajst-28818	569	17	speed	speed	NOUN
ajst-28818	569	18	,	,	PUNCT
ajst-28818	569	19	(	(	PUNCT
ajst-28818	569	20	b)-(g	b)-(g	NOUN
ajst-28818	569	21	)	)	PUNCT
ajst-28818	569	22	amplitude	amplitude	NOUN
ajst-28818	569	23	-	-	PUNCT
ajst-28818	569	24	frequency	frequency	NOUN
ajst-28818	569	25	response	response	NOUN
ajst-28818	569	26	,	,	PUNCT
ajst-28818	569	27	phase	phase	NOUN
ajst-28818	569	28	diagram	diagram	NOUN
ajst-28818	569	29	and	and	CCONJ
ajst-28818	569	30	poincaré	poincaré	PROPN
ajst-28818	569	31	map	map	VERB
ajst-28818	569	32	3.6	3.6	NUM
ajst-28818	569	33	.	.	PUNCT
ajst-28818	570	1	the	the	DET
ajst-28818	570	2	influence	influence	NOUN
ajst-28818	570	3	of	of	ADP
ajst-28818	570	4	different	different	ADJ
ajst-28818	570	5	slow	slow	ADJ
ajst-28818	570	6	drift	drift	NOUN
ajst-28818	570	7	motion	motion	NOUN
ajst-28818	570	8	frequencies	frequency	NOUN
ajst-28818	570	9	the	the	DET
ajst-28818	570	10	platform	platform	NOUN
ajst-28818	570	11	heave	heave	VERB
ajst-28818	570	12	has	have	VERB
ajst-28818	570	13	periods	period	NOUN
ajst-28818	570	14	of	of	ADP
ajst-28818	570	15	5.2	5.2	NUM
ajst-28818	570	16	s	s	NOUN
ajst-28818	570	17	,	,	PUNCT
ajst-28818	570	18	8.2	8.2	NUM
ajst-28818	570	19	s	s	NOUN
ajst-28818	570	20	,	,	PUNCT
ajst-28818	570	21	and	and	CCONJ
ajst-28818	570	22	11.2	11.2	NUM
ajst-28818	570	23	s	s	NOUN
ajst-28818	570	24	,	,	PUNCT
ajst-28818	570	25	respectively	respectively	ADV
ajst-28818	570	26	,	,	PUNCT
ajst-28818	570	27	with	with	ADP
ajst-28818	570	28	a	a	DET
ajst-28818	570	29	heave	heave	ADJ
ajst-28818	570	30	amplitude	amplitude	NOUN
ajst-28818	570	31	of	of	ADP
ajst-28818	570	32	1.5	1.5	NUM
ajst-28818	570	33	m.	m.	NOUN
ajst-28818	570	34	the	the	DET
ajst-28818	570	35	slow	slow	ADJ
ajst-28818	570	36	drift	drift	NOUN
ajst-28818	570	37	motion	motion	NOUN
ajst-28818	570	38	is	be	AUX
ajst-28818	570	39	consistent	consistent	ADJ
ajst-28818	570	40	with	with	ADP
ajst-28818	570	41	2.5	2.5	NUM
ajst-28818	570	42	knots	knot	NOUN
ajst-28818	570	43	.	.	PUNCT
ajst-28818	571	1	fig	fig	NOUN
ajst-28818	571	2	.	.	PUNCT
ajst-28818	572	1	26	26	NUM
ajst-28818	572	2	shows	show	VERB
ajst-28818	572	3	the	the	DET
ajst-28818	572	4	time	time	NOUN
ajst-28818	572	5	-	-	PUNCT
ajst-28818	572	6	history	history	NOUN
ajst-28818	572	7	response	response	NOUN
ajst-28818	572	8	of	of	ADP
ajst-28818	572	9	transverse	transverse	ADJ
ajst-28818	572	10	displacement	displacement	NOUN
ajst-28818	572	11	at	at	ADP
ajst-28818	572	12	the	the	DET
ajst-28818	572	13	midpoint	midpoint	NOUN
ajst-28818	572	14	of	of	ADP
ajst-28818	572	15	drill	drill	NOUN
ajst-28818	572	16	-	-	PUNCT
ajst-28818	572	17	string	string	NOUN
ajst-28818	572	18	in	in	ADP
ajst-28818	572	19	seawater	seawater	NOUN
ajst-28818	572	20	section	section	NOUN
ajst-28818	572	21	.	.	PUNCT
ajst-28818	573	1	when	when	SCONJ
ajst-28818	573	2	the	the	DET
ajst-28818	573	3	amplitude	amplitude	NOUN
ajst-28818	573	4	of	of	ADP
ajst-28818	573	5	the	the	DET
ajst-28818	573	6	heave	heave	NOUN
ajst-28818	573	7	is	be	AUX
ajst-28818	573	8	1.5	1.5	NUM
ajst-28818	573	9	m	m	NOUN
ajst-28818	573	10	,	,	PUNCT
ajst-28818	573	11	there	there	PRON
ajst-28818	573	12	is	be	VERB
ajst-28818	573	13	little	little	ADJ
ajst-28818	573	14	difference	difference	NOUN
ajst-28818	573	15	in	in	ADP
ajst-28818	573	16	the	the	DET
ajst-28818	573	17	lateral	lateral	ADJ
ajst-28818	573	18	displacement	displacement	NOUN
ajst-28818	573	19	for	for	ADP
ajst-28818	573	20	different	different	ADJ
ajst-28818	573	21	heave	heave	NOUN
ajst-28818	573	22	periods	period	NOUN
ajst-28818	573	23	.	.	PUNCT
ajst-28818	574	1	from	from	ADP
ajst-28818	574	2	the	the	DET
ajst-28818	574	3	velocity	velocity	NOUN
ajst-28818	574	4	response	response	NOUN
ajst-28818	574	5	curves	curve	NOUN
ajst-28818	574	6	,	,	PUNCT
ajst-28818	574	7	it	it	PRON
ajst-28818	574	8	is	be	AUX
ajst-28818	574	9	easier	easy	ADJ
ajst-28818	574	10	to	to	PART
ajst-28818	574	11	observe	observe	VERB
ajst-28818	574	12	the	the	DET
ajst-28818	574	13	effect	effect	NOUN
ajst-28818	574	14	of	of	ADP
ajst-28818	574	15	different	different	ADJ
ajst-28818	574	16	heave	heave	NOUN
ajst-28818	574	17	periods	period	NOUN
ajst-28818	574	18	on	on	ADP
ajst-28818	574	19	the	the	DET
ajst-28818	574	20	transverse	transverse	NOUN
ajst-28818	574	21	motion	motion	NOUN
ajst-28818	574	22	of	of	ADP
ajst-28818	574	23	the	the	DET
ajst-28818	574	24	drill	drill	NOUN
ajst-28818	574	25	-	-	PUNCT
ajst-28818	574	26	string	string	NOUN
ajst-28818	574	27	in	in	ADP
ajst-28818	574	28	seawater	seawater	NOUN
ajst-28818	574	29	.	.	PUNCT
ajst-28818	575	1	it	it	PRON
ajst-28818	575	2	can	can	AUX
ajst-28818	575	3	be	be	AUX
ajst-28818	575	4	found	find	VERB
ajst-28818	575	5	that	that	SCONJ
ajst-28818	575	6	the	the	DET
ajst-28818	575	7	304	304	NUM
ajst-28818	575	8	transverse	transverse	NOUN
ajst-28818	575	9	velocity	velocity	NOUN
ajst-28818	575	10	fluctuates	fluctuate	VERB
ajst-28818	575	11	up	up	ADV
ajst-28818	575	12	and	and	CCONJ
ajst-28818	575	13	down	down	ADV
ajst-28818	575	14	with	with	ADP
ajst-28818	575	15	the	the	DET
ajst-28818	575	16	heave	heave	ADJ
ajst-28818	575	17	motion	motion	NOUN
ajst-28818	575	18	at	at	ADP
ajst-28818	575	19	small	small	ADJ
ajst-28818	575	20	amplitudes	amplitude	NOUN
ajst-28818	575	21	.	.	PUNCT
ajst-28818	576	1	compared	compare	VERB
ajst-28818	576	2	with	with	ADP
ajst-28818	576	3	fig	fig	NOUN
ajst-28818	576	4	.	.	PUNCT
ajst-28818	577	1	9	9	NUM
ajst-28818	577	2	(	(	PUNCT
ajst-28818	577	3	c	c	NOUN
ajst-28818	577	4	)	)	PUNCT
ajst-28818	577	5	,	,	PUNCT
ajst-28818	577	6	the	the	DET
ajst-28818	577	7	fluctuation	fluctuation	NOUN
ajst-28818	577	8	range	range	NOUN
ajst-28818	577	9	of	of	ADP
ajst-28818	577	10	the	the	DET
ajst-28818	577	11	axial	axial	ADJ
ajst-28818	577	12	tension	tension	NOUN
ajst-28818	577	13	of	of	ADP
ajst-28818	577	14	the	the	DET
ajst-28818	577	15	drill	drill	NOUN
ajst-28818	577	16	-	-	PUNCT
ajst-28818	577	17	string	string	NOUN
ajst-28818	577	18	is	be	AUX
ajst-28818	577	19	effectively	effectively	ADV
ajst-28818	577	20	weakened	weaken	VERB
ajst-28818	577	21	under	under	ADP
ajst-28818	577	22	the	the	DET
ajst-28818	577	23	action	action	NOUN
ajst-28818	577	24	of	of	ADP
ajst-28818	577	25	the	the	DET
ajst-28818	577	26	heave	heave	PROPN
ajst-28818	577	27	compensation	compensation	NOUN
ajst-28818	577	28	device	device	NOUN
ajst-28818	577	29	,	,	PUNCT
ajst-28818	577	30	so	so	SCONJ
ajst-28818	577	31	that	that	SCONJ
ajst-28818	577	32	the	the	DET
ajst-28818	577	33	lateral	lateral	ADJ
ajst-28818	577	34	stiffness	stiffness	NOUN
ajst-28818	577	35	of	of	ADP
ajst-28818	577	36	the	the	DET
ajst-28818	577	37	drillstring	drillstring	NOUN
ajst-28818	577	38	in	in	ADP
ajst-28818	577	39	the	the	DET
ajst-28818	577	40	seawater	seawater	NOUN
ajst-28818	577	41	section	section	NOUN
ajst-28818	577	42	changes	change	VERB
ajst-28818	577	43	less	less	ADJ
ajst-28818	577	44	.	.	PUNCT
ajst-28818	578	1	figure	figure	VERB
ajst-28818	578	2	26	26	NUM
ajst-28818	578	3	.	.	PUNCT
ajst-28818	579	1	lateral	lateral	ADJ
ajst-28818	579	2	time	time	NOUN
ajst-28818	579	3	-	-	PUNCT
ajst-28818	579	4	history	history	NOUN
ajst-28818	579	5	response	response	NOUN
ajst-28818	579	6	of	of	ADP
ajst-28818	579	7	drill	drill	NOUN
ajst-28818	579	8	-	-	PUNCT
ajst-28818	579	9	string	string	NOUN
ajst-28818	579	10	in	in	ADP
ajst-28818	579	11	seawater	seawater	NOUN
ajst-28818	579	12	section	section	NOUN
ajst-28818	579	13	fig	fig	NOUN
ajst-28818	579	14	.	.	PUNCT
ajst-28818	580	1	27	27	NUM
ajst-28818	580	2	shows	show	VERB
ajst-28818	580	3	the	the	DET
ajst-28818	580	4	axial	axial	ADJ
ajst-28818	580	5	time	time	NOUN
ajst-28818	580	6	-	-	PUNCT
ajst-28818	580	7	history	history	NOUN
ajst-28818	580	8	response	response	NOUN
ajst-28818	580	9	curve	curve	NOUN
ajst-28818	580	10	of	of	ADP
ajst-28818	580	11	the	the	DET
ajst-28818	580	12	top	top	NOUN
ajst-28818	580	13	of	of	ADP
ajst-28818	580	14	the	the	DET
ajst-28818	580	15	drill	drill	NOUN
ajst-28818	580	16	-	-	PUNCT
ajst-28818	580	17	string	string	NOUN
ajst-28818	580	18	.	.	PUNCT
ajst-28818	581	1	as	as	SCONJ
ajst-28818	581	2	can	can	AUX
ajst-28818	581	3	be	be	AUX
ajst-28818	581	4	seen	see	VERB
ajst-28818	581	5	from	from	ADP
ajst-28818	581	6	the	the	DET
ajst-28818	581	7	axial	axial	ADJ
ajst-28818	581	8	displacement	displacement	NOUN
ajst-28818	581	9	of	of	ADP
ajst-28818	581	10	the	the	DET
ajst-28818	581	11	top	top	NOUN
ajst-28818	581	12	of	of	ADP
ajst-28818	581	13	the	the	DET
ajst-28818	581	14	drill	drill	NOUN
ajst-28818	581	15	-	-	PUNCT
ajst-28818	581	16	string	string	NOUN
ajst-28818	581	17	in	in	ADP
ajst-28818	581	18	fig	fig	NOUN
ajst-28818	581	19	.	.	PUNCT
ajst-28818	582	1	27	27	NUM
ajst-28818	582	2	(	(	PUNCT
ajst-28818	582	3	a	a	NOUN
ajst-28818	582	4	)	)	PUNCT
ajst-28818	582	5	,	,	PUNCT
ajst-28818	582	6	the	the	DET
ajst-28818	582	7	fluctuation	fluctuation	NOUN
ajst-28818	582	8	amplitude	amplitude	NOUN
ajst-28818	582	9	of	of	ADP
ajst-28818	582	10	the	the	DET
ajst-28818	582	11	axial	axial	ADJ
ajst-28818	582	12	displacement	displacement	NOUN
ajst-28818	582	13	with	with	ADP
ajst-28818	582	14	a	a	DET
ajst-28818	582	15	heave	heave	ADJ
ajst-28818	582	16	period	period	NOUN
ajst-28818	582	17	of	of	ADP
ajst-28818	582	18	5.2s	5.2s	PROPN
ajst-28818	582	19	is	be	AUX
ajst-28818	582	20	slightly	slightly	ADV
ajst-28818	582	21	larger	large	ADJ
ajst-28818	582	22	,	,	PUNCT
ajst-28818	582	23	which	which	PRON
ajst-28818	582	24	is	be	AUX
ajst-28818	582	25	caused	cause	VERB
ajst-28818	582	26	by	by	ADP
ajst-28818	582	27	the	the	DET
ajst-28818	582	28	large	large	ADJ
ajst-28818	582	29	heave	heave	PROPN
ajst-28818	582	30	motion	motion	NOUN
ajst-28818	582	31	frequency	frequency	NOUN
ajst-28818	582	32	and	and	CCONJ
ajst-28818	582	33	heave	heave	VERB
ajst-28818	582	34	speed	speed	NOUN
ajst-28818	582	35	,	,	PUNCT
ajst-28818	582	36	and	and	CCONJ
ajst-28818	582	37	the	the	DET
ajst-28818	582	38	inertial	inertial	ADJ
ajst-28818	582	39	force	force	NOUN
ajst-28818	582	40	existing	exist	VERB
ajst-28818	582	41	in	in	ADP
ajst-28818	582	42	the	the	DET
ajst-28818	582	43	drill	drill	NOUN
ajst-28818	582	44	-	-	PUNCT
ajst-28818	582	45	string	string	NOUN
ajst-28818	582	46	.	.	PUNCT
ajst-28818	583	1	it	it	PRON
ajst-28818	583	2	can	can	AUX
ajst-28818	583	3	be	be	AUX
ajst-28818	583	4	seen	see	VERB
ajst-28818	583	5	from	from	ADP
ajst-28818	583	6	fig	fig	NOUN
ajst-28818	583	7	.	.	PUNCT
ajst-28818	584	1	27	27	NUM
ajst-28818	584	2	(	(	PUNCT
ajst-28818	584	3	b	b	NOUN
ajst-28818	584	4	)	)	PUNCT
ajst-28818	584	5	that	that	SCONJ
ajst-28818	584	6	the	the	DET
ajst-28818	584	7	heave	heave	ADJ
ajst-28818	584	8	frequency	frequency	NOUN
ajst-28818	584	9	has	have	VERB
ajst-28818	584	10	little	little	ADJ
ajst-28818	584	11	influence	influence	NOUN
ajst-28818	584	12	on	on	ADP
ajst-28818	584	13	the	the	DET
ajst-28818	584	14	maximum	maximum	ADJ
ajst-28818	584	15	shrinkage	shrinkage	NOUN
ajst-28818	584	16	of	of	ADP
ajst-28818	584	17	the	the	DET
ajst-28818	584	18	heave	heave	NOUN
ajst-28818	584	19	compensator	compensator	NOUN
ajst-28818	584	20	.	.	PUNCT
ajst-28818	585	1	figure	figure	NOUN
ajst-28818	585	2	27	27	NUM
ajst-28818	585	3	.	.	PUNCT
ajst-28818	586	1	axial	axial	ADJ
ajst-28818	586	2	time	time	NOUN
ajst-28818	586	3	-	-	PUNCT
ajst-28818	586	4	history	history	NOUN
ajst-28818	586	5	response	response	NOUN
ajst-28818	586	6	of	of	ADP
ajst-28818	586	7	the	the	DET
ajst-28818	586	8	drill	drill	NOUN
ajst-28818	586	9	-	-	PUNCT
ajst-28818	586	10	string	string	NOUN
ajst-28818	586	11	top	top	NOUN
ajst-28818	586	12	:	:	PUNCT
ajst-28818	586	13	(	(	PUNCT
ajst-28818	586	14	a	a	X
ajst-28818	586	15	)	)	PUNCT
ajst-28818	586	16	displacement	displacement	NOUN
ajst-28818	586	17	,	,	PUNCT
ajst-28818	586	18	and	and	CCONJ
ajst-28818	586	19	(	(	PUNCT
ajst-28818	586	20	b	b	NOUN
ajst-28818	586	21	)	)	PUNCT
ajst-28818	586	22	relative	relative	ADJ
ajst-28818	586	23	displacement	displacement	NOUN
ajst-28818	586	24	between	between	ADP
ajst-28818	586	25	the	the	DET
ajst-28818	586	26	platform	platform	NOUN
ajst-28818	586	27	and	and	CCONJ
ajst-28818	586	28	the	the	DET
ajst-28818	586	29	drill	drill	NOUN
ajst-28818	586	30	-	-	PUNCT
ajst-28818	586	31	string	string	NOUN
ajst-28818	586	32	top	top	ADJ
ajst-28818	586	33	fig	fig	NOUN
ajst-28818	586	34	.	.	PUNCT
ajst-28818	587	1	28	28	NUM
ajst-28818	587	2	(	(	PUNCT
ajst-28818	587	3	a	a	NOUN
ajst-28818	587	4	)	)	PUNCT
ajst-28818	587	5	is	be	AUX
ajst-28818	587	6	the	the	DET
ajst-28818	587	7	time	time	NOUN
ajst-28818	587	8	-	-	PUNCT
ajst-28818	587	9	history	history	NOUN
ajst-28818	587	10	response	response	NOUN
ajst-28818	587	11	diagram	diagram	NOUN
ajst-28818	587	12	of	of	ADP
ajst-28818	587	13	wob	wob	NOUN
ajst-28818	587	14	,	,	PUNCT
ajst-28818	587	15	and	and	CCONJ
ajst-28818	587	16	it	it	PRON
ajst-28818	587	17	can	can	AUX
ajst-28818	587	18	be	be	AUX
ajst-28818	587	19	found	find	VERB
ajst-28818	587	20	that	that	SCONJ
ajst-28818	587	21	the	the	DET
ajst-28818	587	22	wob	wob	NOUN
ajst-28818	587	23	fluctuates	fluctuate	VERB
ajst-28818	587	24	sharply	sharply	ADV
ajst-28818	587	25	with	with	ADP
ajst-28818	587	26	the	the	DET
ajst-28818	587	27	heave	heave	PROPN
ajst-28818	587	28	movement	movement	NOUN
ajst-28818	587	29	.	.	PUNCT
ajst-28818	588	1	fig	fig	NOUN
ajst-28818	588	2	.	.	PUNCT
ajst-28818	589	1	28	28	NUM
ajst-28818	589	2	(	(	PUNCT
ajst-28818	589	3	b	b	NOUN
ajst-28818	589	4	)	)	PUNCT
ajst-28818	589	5	(	(	PUNCT
ajst-28818	589	6	d	d	X
ajst-28818	589	7	)	)	PUNCT
ajst-28818	589	8	shows	show	VERB
ajst-28818	589	9	the	the	DET
ajst-28818	589	10	amplitudefrequency	amplitudefrequency	NOUN
ajst-28818	589	11	response	response	NOUN
ajst-28818	589	12	curve	curve	NOUN
ajst-28818	589	13	of	of	ADP
ajst-28818	589	14	wob	wob	NOUN
ajst-28818	589	15	.	.	PUNCT
ajst-28818	590	1	since	since	SCONJ
ajst-28818	590	2	the	the	DET
ajst-28818	590	3	slow	slow	ADJ
ajst-28818	590	4	drift	drift	NOUN
ajst-28818	590	5	motion	motion	NOUN
ajst-28818	590	6	is	be	AUX
ajst-28818	590	7	the	the	DET
ajst-28818	590	8	same	same	ADJ
ajst-28818	590	9	,	,	PUNCT
ajst-28818	590	10	there	there	PRON
ajst-28818	590	11	is	be	VERB
ajst-28818	590	12	little	little	ADJ
ajst-28818	590	13	difference	difference	NOUN
ajst-28818	590	14	in	in	ADP
ajst-28818	590	15	the	the	DET
ajst-28818	590	16	amplitudes	amplitude	NOUN
ajst-28818	590	17	of	of	ADP
ajst-28818	590	18	the	the	DET
ajst-28818	590	19	corresponding	corresponding	ADJ
ajst-28818	590	20	frequency	frequency	NOUN
ajst-28818	590	21	components	component	NOUN
ajst-28818	590	22	,	,	PUNCT
ajst-28818	590	23	and	and	CCONJ
ajst-28818	590	24	the	the	DET
ajst-28818	590	25	amplitude	amplitude	NOUN
ajst-28818	590	26	of	of	ADP
ajst-28818	590	27	the	the	DET
ajst-28818	590	28	corresponding	corresponding	ADJ
ajst-28818	590	29	frequency	frequency	NOUN
ajst-28818	590	30	component	component	NOUN
ajst-28818	590	31	of	of	ADP
ajst-28818	590	32	the	the	DET
ajst-28818	590	33	heave	heave	ADJ
ajst-28818	590	34	motion	motion	NOUN
ajst-28818	590	35	decreases	decrease	NOUN
ajst-28818	590	36	as	as	ADP
ajst-28818	590	37	the	the	DET
ajst-28818	590	38	period	period	NOUN
ajst-28818	590	39	of	of	ADP
ajst-28818	590	40	the	the	DET
ajst-28818	590	41	heave	heave	NOUN
ajst-28818	590	42	decreases	decrease	VERB
ajst-28818	590	43	.	.	PUNCT
ajst-28818	591	1	figure	figure	NOUN
ajst-28818	591	2	28	28	NUM
ajst-28818	591	3	.	.	PUNCT
ajst-28818	592	1	wob	wob	NOUN
ajst-28818	592	2	time	time	PROPN
ajst-28818	592	3	history	history	NOUN
ajst-28818	592	4	curve	curve	NOUN
ajst-28818	592	5	and	and	CCONJ
ajst-28818	592	6	amplitude	amplitude	NOUN
ajst-28818	592	7	-	-	PUNCT
ajst-28818	592	8	frequency	frequency	NOUN
ajst-28818	592	9	response	response	NOUN
ajst-28818	592	10	curve	curve	NOUN
ajst-28818	592	11	305	305	NUM
ajst-28818	592	12	fig	fig	NOUN
ajst-28818	592	13	.	.	PUNCT
ajst-28818	593	1	29	29	NUM
ajst-28818	593	2	shows	show	VERB
ajst-28818	593	3	the	the	DET
ajst-28818	593	4	torsional	torsional	ADJ
ajst-28818	593	5	time	time	NOUN
ajst-28818	593	6	-	-	PUNCT
ajst-28818	593	7	history	history	NOUN
ajst-28818	593	8	response	response	NOUN
ajst-28818	593	9	curve	curve	NOUN
ajst-28818	593	10	of	of	ADP
ajst-28818	593	11	the	the	DET
ajst-28818	593	12	bit	bit	NOUN
ajst-28818	593	13	,	,	PUNCT
ajst-28818	593	14	and	and	CCONJ
ajst-28818	593	15	fig	fig	NOUN
ajst-28818	593	16	.	.	PUNCT
ajst-28818	594	1	29	29	NUM
ajst-28818	594	2	(	(	PUNCT
ajst-28818	594	3	a	a	NOUN
ajst-28818	594	4	)	)	PUNCT
ajst-28818	594	5	(	(	PUNCT
ajst-28818	594	6	c	c	X
ajst-28818	594	7	)	)	PUNCT
ajst-28818	594	8	shows	show	VERB
ajst-28818	594	9	the	the	DET
ajst-28818	594	10	bit	bit	NOUN
ajst-28818	594	11	frictional	frictional	ADJ
ajst-28818	594	12	torque	torque	NOUN
ajst-28818	594	13	,	,	PUNCT
ajst-28818	594	14	torsional	torsional	ADJ
ajst-28818	594	15	displacement	displacement	NOUN
ajst-28818	594	16	and	and	CCONJ
ajst-28818	594	17	rotational	rotational	ADJ
ajst-28818	594	18	speed	speed	NOUN
ajst-28818	594	19	,	,	PUNCT
ajst-28818	594	20	respectively	respectively	ADV
ajst-28818	594	21	.	.	PUNCT
ajst-28818	595	1	it	it	PRON
ajst-28818	595	2	can	can	AUX
ajst-28818	595	3	be	be	AUX
ajst-28818	595	4	found	find	VERB
ajst-28818	595	5	that	that	SCONJ
ajst-28818	595	6	when	when	SCONJ
ajst-28818	595	7	the	the	DET
ajst-28818	595	8	heave	heave	ADJ
ajst-28818	595	9	amplitude	amplitude	NOUN
ajst-28818	595	10	is	be	AUX
ajst-28818	595	11	1.5	1.5	NUM
ajst-28818	595	12	m	m	NOUN
ajst-28818	595	13	,	,	PUNCT
ajst-28818	595	14	the	the	DET
ajst-28818	595	15	heave	heave	ADJ
ajst-28818	595	16	frequency	frequency	NOUN
ajst-28818	595	17	has	have	VERB
ajst-28818	595	18	a	a	DET
ajst-28818	595	19	significant	significant	ADJ
ajst-28818	595	20	influence	influence	NOUN
ajst-28818	595	21	on	on	ADP
ajst-28818	595	22	the	the	DET
ajst-28818	595	23	stick	stick	NOUN
ajst-28818	595	24	slip	slip	VERB
ajst-28818	595	25	vibration	vibration	NOUN
ajst-28818	595	26	period	period	NOUN
ajst-28818	595	27	of	of	ADP
ajst-28818	595	28	the	the	DET
ajst-28818	595	29	bit	bit	NOUN
ajst-28818	595	30	.	.	PUNCT
ajst-28818	596	1	as	as	SCONJ
ajst-28818	596	2	the	the	DET
ajst-28818	596	3	period	period	NOUN
ajst-28818	596	4	of	of	ADP
ajst-28818	596	5	the	the	DET
ajst-28818	596	6	heave	heave	NOUN
ajst-28818	596	7	decreases	decrease	VERB
ajst-28818	596	8	,	,	PUNCT
ajst-28818	596	9	the	the	DET
ajst-28818	596	10	time	time	NOUN
ajst-28818	596	11	of	of	ADP
ajst-28818	596	12	the	the	DET
ajst-28818	596	13	inversion	inversion	NOUN
ajst-28818	596	14	torque	torque	NOUN
ajst-28818	596	15	of	of	ADP
ajst-28818	596	16	the	the	DET
ajst-28818	596	17	bit	bit	NOUN
ajst-28818	596	18	decreases	decrease	NOUN
ajst-28818	596	19	,	,	PUNCT
ajst-28818	596	20	and	and	CCONJ
ajst-28818	596	21	the	the	DET
ajst-28818	596	22	inversion	inversion	NOUN
ajst-28818	596	23	phenomenon	phenomenon	NOUN
ajst-28818	596	24	of	of	ADP
ajst-28818	596	25	the	the	DET
ajst-28818	596	26	bit	bit	NOUN
ajst-28818	596	27	disappears	disappear	VERB
ajst-28818	596	28	.	.	PUNCT
ajst-28818	597	1	only	only	ADV
ajst-28818	597	2	for	for	ADP
ajst-28818	597	3	the	the	DET
ajst-28818	597	4	heave	heave	ADJ
ajst-28818	597	5	period	period	NOUN
ajst-28818	597	6	of	of	ADP
ajst-28818	597	7	11.2	11.2	NUM
ajst-28818	597	8	s	s	NOUN
ajst-28818	597	9	,	,	PUNCT
ajst-28818	597	10	the	the	DET
ajst-28818	597	11	bit	bit	NOUN
ajst-28818	597	12	has	have	VERB
ajst-28818	597	13	a	a	DET
ajst-28818	597	14	small	small	ADJ
ajst-28818	597	15	amplitude	amplitude	NOUN
ajst-28818	597	16	inversion	inversion	NOUN
ajst-28818	597	17	.	.	PUNCT
ajst-28818	598	1	fig	fig	NOUN
ajst-28818	598	2	.	.	PUNCT
ajst-28818	599	1	29	29	NUM
ajst-28818	599	2	(	(	PUNCT
ajst-28818	599	3	d	d	NOUN
ajst-28818	599	4	)	)	PUNCT
ajst-28818	599	5	(	(	PUNCT
ajst-28818	599	6	f	f	X
ajst-28818	599	7	)	)	PUNCT
ajst-28818	599	8	shows	show	VERB
ajst-28818	599	9	the	the	DET
ajst-28818	599	10	bit	bit	NOUN
ajst-28818	599	11	torsional	torsional	ADJ
ajst-28818	599	12	amplitudefrequency	amplitudefrequency	NOUN
ajst-28818	599	13	response	response	NOUN
ajst-28818	599	14	curve	curve	NOUN
ajst-28818	599	15	.	.	PUNCT
ajst-28818	600	1	it	it	PRON
ajst-28818	600	2	can	can	AUX
ajst-28818	600	3	be	be	AUX
ajst-28818	600	4	found	find	VERB
ajst-28818	600	5	that	that	SCONJ
ajst-28818	600	6	the	the	DET
ajst-28818	600	7	frequency	frequency	NOUN
ajst-28818	600	8	component	component	NOUN
ajst-28818	600	9	with	with	ADP
ajst-28818	600	10	the	the	DET
ajst-28818	600	11	largest	large	ADJ
ajst-28818	600	12	amplitude	amplitude	NOUN
ajst-28818	600	13	corresponds	correspond	VERB
ajst-28818	600	14	to	to	ADP
ajst-28818	600	15	the	the	DET
ajst-28818	600	16	heave	heave	ADJ
ajst-28818	600	17	frequency	frequency	NOUN
ajst-28818	600	18	,	,	PUNCT
ajst-28818	600	19	indicating	indicate	VERB
ajst-28818	600	20	that	that	SCONJ
ajst-28818	600	21	the	the	DET
ajst-28818	600	22	bit	bit	NOUN
ajst-28818	600	23	torsional	torsional	ADJ
ajst-28818	600	24	direction	direction	NOUN
ajst-28818	600	25	resonates	resonate	VERB
ajst-28818	600	26	with	with	ADP
ajst-28818	600	27	the	the	DET
ajst-28818	600	28	axial	axial	ADJ
ajst-28818	600	29	direction	direction	NOUN
ajst-28818	600	30	.	.	PUNCT
ajst-28818	601	1	the	the	DET
ajst-28818	601	2	amplitude	amplitude	NOUN
ajst-28818	601	3	-	-	PUNCT
ajst-28818	601	4	frequency	frequency	NOUN
ajst-28818	601	5	response	response	NOUN
ajst-28818	601	6	curve	curve	NOUN
ajst-28818	601	7	with	with	ADP
ajst-28818	601	8	a	a	DET
ajst-28818	601	9	heave	heave	ADJ
ajst-28818	601	10	period	period	NOUN
ajst-28818	601	11	of	of	ADP
ajst-28818	601	12	11.2	11.2	NUM
ajst-28818	601	13	s	s	PART
ajst-28818	601	14	has	have	VERB
ajst-28818	601	15	an	an	DET
ajst-28818	601	16	additional	additional	ADJ
ajst-28818	601	17	high	high	ADJ
ajst-28818	601	18	-	-	PUNCT
ajst-28818	601	19	energy	energy	NOUN
ajst-28818	601	20	frequency	frequency	NOUN
ajst-28818	601	21	component	component	NOUN
ajst-28818	601	22	compared	compare	VERB
ajst-28818	601	23	to	to	ADP
ajst-28818	601	24	the	the	DET
ajst-28818	601	25	two	two	NUM
ajst-28818	601	26	cases	case	NOUN
ajst-28818	601	27	with	with	ADP
ajst-28818	601	28	smaller	small	ADJ
ajst-28818	601	29	heave	heave	ADJ
ajst-28818	601	30	periods	period	NOUN
ajst-28818	601	31	,	,	PUNCT
ajst-28818	601	32	which	which	PRON
ajst-28818	601	33	may	may	AUX
ajst-28818	601	34	affect	affect	VERB
ajst-28818	601	35	the	the	DET
ajst-28818	601	36	bit	bit	NOUN
ajst-28818	601	37	lifetime	lifetime	NOUN
ajst-28818	601	38	.	.	PUNCT
ajst-28818	602	1	fig	fig	NOUN
ajst-28818	602	2	.	.	PUNCT
ajst-28818	603	1	29	29	NUM
ajst-28818	603	2	(	(	PUNCT
ajst-28818	603	3	g	g	NOUN
ajst-28818	603	4	)	)	PUNCT
ajst-28818	603	5	(	(	PUNCT
ajst-28818	603	6	i	i	NOUN
ajst-28818	603	7	)	)	PUNCT
ajst-28818	603	8	shows	show	VERB
ajst-28818	603	9	the	the	DET
ajst-28818	603	10	bit	bit	NOUN
ajst-28818	603	11	torsional	torsional	ADJ
ajst-28818	603	12	phase	phase	NOUN
ajst-28818	603	13	diagram	diagram	NOUN
ajst-28818	603	14	and	and	CCONJ
ajst-28818	603	15	poincaré	poincaré	PROPN
ajst-28818	603	16	mapping	mapping	NOUN
ajst-28818	603	17	.	.	PUNCT
ajst-28818	604	1	it	it	PRON
ajst-28818	604	2	can	can	AUX
ajst-28818	604	3	be	be	AUX
ajst-28818	604	4	found	find	VERB
ajst-28818	604	5	that	that	SCONJ
ajst-28818	604	6	the	the	DET
ajst-28818	604	7	points	point	NOUN
ajst-28818	604	8	of	of	ADP
ajst-28818	604	9	the	the	DET
ajst-28818	604	10	poincaré	poincaré	PROPN
ajst-28818	604	11	map	map	NOUN
ajst-28818	604	12	of	of	ADP
ajst-28818	604	13	different	different	ADJ
ajst-28818	604	14	heave	heave	NOUN
ajst-28818	604	15	periods	period	NOUN
ajst-28818	604	16	are	be	AUX
ajst-28818	604	17	concentrated	concentrate	VERB
ajst-28818	604	18	,	,	PUNCT
ajst-28818	604	19	indicating	indicate	VERB
ajst-28818	604	20	that	that	SCONJ
ajst-28818	604	21	the	the	DET
ajst-28818	604	22	sites	site	NOUN
ajst-28818	604	23	move	move	VERB
ajst-28818	604	24	quasi	quasi	ADJ
ajst-28818	604	25	-	-	PUNCT
ajst-28818	604	26	periodically	periodically	ADV
ajst-28818	604	27	.	.	PUNCT
ajst-28818	605	1	with	with	ADP
ajst-28818	605	2	the	the	DET
ajst-28818	605	3	increase	increase	NOUN
ajst-28818	605	4	of	of	ADP
ajst-28818	605	5	the	the	DET
ajst-28818	605	6	heave	heave	ADJ
ajst-28818	605	7	period	period	NOUN
ajst-28818	605	8	,	,	PUNCT
ajst-28818	605	9	the	the	DET
ajst-28818	605	10	phase	phase	NOUN
ajst-28818	605	11	trajectory	trajectory	NOUN
ajst-28818	605	12	pattern	pattern	NOUN
ajst-28818	605	13	expands	expand	VERB
ajst-28818	605	14	into	into	ADP
ajst-28818	605	15	a	a	DET
ajst-28818	605	16	ring	ring	NOUN
ajst-28818	605	17	,	,	PUNCT
ajst-28818	605	18	and	and	CCONJ
ajst-28818	605	19	the	the	DET
ajst-28818	605	20	ring	ring	NOUN
ajst-28818	605	21	radius	radius	NOUN
ajst-28818	605	22	increases	increase	NOUN
ajst-28818	605	23	,	,	PUNCT
ajst-28818	605	24	which	which	PRON
ajst-28818	605	25	indicates	indicate	VERB
ajst-28818	605	26	that	that	SCONJ
ajst-28818	605	27	the	the	DET
ajst-28818	605	28	relative	relative	ADJ
ajst-28818	605	29	angular	angular	ADJ
ajst-28818	605	30	displacement	displacement	ADJ
ajst-28818	605	31	difference	difference	NOUN
ajst-28818	605	32	of	of	ADP
ajst-28818	605	33	the	the	DET
ajst-28818	605	34	bit	bit	NOUN
ajst-28818	605	35	is	be	AUX
ajst-28818	605	36	larger	large	ADJ
ajst-28818	605	37	,	,	PUNCT
ajst-28818	605	38	and	and	CCONJ
ajst-28818	605	39	the	the	DET
ajst-28818	605	40	maximum	maximum	ADJ
ajst-28818	605	41	rotation	rotation	NOUN
ajst-28818	605	42	speed	speed	NOUN
ajst-28818	605	43	of	of	ADP
ajst-28818	605	44	the	the	DET
ajst-28818	605	45	bit	bit	NOUN
ajst-28818	605	46	is	be	AUX
ajst-28818	605	47	larger	large	ADJ
ajst-28818	605	48	,	,	PUNCT
ajst-28818	605	49	which	which	PRON
ajst-28818	605	50	will	will	AUX
ajst-28818	605	51	aggravate	aggravate	VERB
ajst-28818	605	52	the	the	DET
ajst-28818	605	53	damage	damage	NOUN
ajst-28818	605	54	of	of	ADP
ajst-28818	605	55	the	the	DET
ajst-28818	605	56	bit	bit	NOUN
ajst-28818	605	57	.	.	PUNCT
ajst-28818	606	1	figure	figure	NOUN
ajst-28818	606	2	29	29	NUM
ajst-28818	606	3	.	.	PUNCT
ajst-28818	607	1	bit	bit	NOUN
ajst-28818	607	2	torsional	torsional	ADJ
ajst-28818	607	3	response	response	NOUN
ajst-28818	607	4	:	:	PUNCT
ajst-28818	607	5	(	(	PUNCT
ajst-28818	607	6	a	a	X
ajst-28818	607	7	)	)	PUNCT
ajst-28818	607	8	friction	friction	NOUN
ajst-28818	607	9	torque	torque	NOUN
ajst-28818	607	10	,	,	PUNCT
ajst-28818	607	11	(	(	PUNCT
ajst-28818	607	12	b	b	NOUN
ajst-28818	607	13	)	)	PUNCT
ajst-28818	607	14	displacement	displacement	NOUN
ajst-28818	607	15	,	,	PUNCT
ajst-28818	607	16	(	(	PUNCT
ajst-28818	607	17	c	c	NOUN
ajst-28818	607	18	)	)	PUNCT
ajst-28818	607	19	speed	speed	NOUN
ajst-28818	607	20	,	,	PUNCT
ajst-28818	607	21	(	(	PUNCT
ajst-28818	607	22	d)-(i	d)-(i	NOUN
ajst-28818	607	23	)	)	PUNCT
ajst-28818	607	24	speed	speed	NOUN
ajst-28818	607	25	amplitude	amplitude	NOUN
ajst-28818	607	26	-	-	PUNCT
ajst-28818	607	27	frequency	frequency	NOUN
ajst-28818	607	28	response	response	NOUN
ajst-28818	607	29	,	,	PUNCT
ajst-28818	607	30	phase	phase	NOUN
ajst-28818	607	31	diagram	diagram	NOUN
ajst-28818	607	32	and	and	CCONJ
ajst-28818	607	33	poincaré	poincaré	PROPN
ajst-28818	607	34	map	map	VERB
ajst-28818	607	35	306	306	NUM
ajst-28818	607	36	fig	fig	NOUN
ajst-28818	607	37	.	.	PUNCT
ajst-28818	608	1	30	30	NUM
ajst-28818	608	2	shows	show	VERB
ajst-28818	608	3	the	the	DET
ajst-28818	608	4	torsional	torsional	ADJ
ajst-28818	608	5	response	response	NOUN
ajst-28818	608	6	at	at	ADP
ajst-28818	608	7	the	the	DET
ajst-28818	608	8	midpoint	midpoint	NOUN
ajst-28818	608	9	of	of	ADP
ajst-28818	608	10	the	the	DET
ajst-28818	608	11	drill	drill	NOUN
ajst-28818	608	12	-	-	PUNCT
ajst-28818	608	13	string	string	NOUN
ajst-28818	608	14	(	(	PUNCT
ajst-28818	608	15	1250	1250	NUM
ajst-28818	608	16	m	m	NOUN
ajst-28818	608	17	depth	depth	NOUN
ajst-28818	608	18	)	)	PUNCT
ajst-28818	608	19	.	.	PUNCT
ajst-28818	609	1	it	it	PRON
ajst-28818	609	2	can	can	AUX
ajst-28818	609	3	be	be	AUX
ajst-28818	609	4	found	find	VERB
ajst-28818	609	5	that	that	SCONJ
ajst-28818	609	6	the	the	DET
ajst-28818	609	7	torsional	torsional	ADJ
ajst-28818	609	8	vibrations	vibration	NOUN
ajst-28818	609	9	of	of	ADP
ajst-28818	609	10	the	the	DET
ajst-28818	609	11	drill	drill	NOUN
ajst-28818	609	12	-	-	PUNCT
ajst-28818	609	13	string	string	NOUN
ajst-28818	609	14	are	be	AUX
ajst-28818	609	15	also	also	ADV
ajst-28818	609	16	in	in	ADP
ajst-28818	609	17	resonance	resonance	NOUN
ajst-28818	609	18	with	with	ADP
ajst-28818	609	19	the	the	DET
ajst-28818	609	20	axial	axial	ADJ
ajst-28818	609	21	direction	direction	NOUN
ajst-28818	609	22	at	at	ADP
ajst-28818	609	23	different	different	ADJ
ajst-28818	609	24	periods	period	NOUN
ajst-28818	609	25	of	of	ADP
ajst-28818	609	26	the	the	DET
ajst-28818	609	27	heave	heave	NOUN
ajst-28818	609	28	.	.	PUNCT
ajst-28818	610	1	at	at	ADP
ajst-28818	610	2	the	the	DET
ajst-28818	610	3	same	same	ADJ
ajst-28818	610	4	time	time	NOUN
ajst-28818	610	5	,	,	PUNCT
ajst-28818	610	6	as	as	SCONJ
ajst-28818	610	7	shown	show	VERB
ajst-28818	610	8	in	in	ADP
ajst-28818	610	9	fig	fig	NOUN
ajst-28818	610	10	.	.	PUNCT
ajst-28818	611	1	30	30	NUM
ajst-28818	611	2	(	(	PUNCT
ajst-28818	611	3	e	e	NOUN
ajst-28818	611	4	)	)	PUNCT
ajst-28818	611	5	(	(	PUNCT
ajst-28818	611	6	g	g	NOUN
ajst-28818	611	7	)	)	PUNCT
ajst-28818	611	8	,	,	PUNCT
ajst-28818	611	9	the	the	DET
ajst-28818	611	10	phase	phase	NOUN
ajst-28818	611	11	trajectory	trajectory	NOUN
ajst-28818	611	12	expands	expand	VERB
ajst-28818	611	13	with	with	ADP
ajst-28818	611	14	the	the	DET
ajst-28818	611	15	increase	increase	NOUN
ajst-28818	611	16	of	of	ADP
ajst-28818	611	17	the	the	DET
ajst-28818	611	18	heave	heave	ADJ
ajst-28818	611	19	period	period	NOUN
ajst-28818	611	20	.	.	PUNCT
ajst-28818	612	1	unlike	unlike	ADP
ajst-28818	612	2	the	the	DET
ajst-28818	612	3	torsional	torsional	ADJ
ajst-28818	612	4	oscillations	oscillation	NOUN
ajst-28818	612	5	of	of	ADP
ajst-28818	612	6	the	the	DET
ajst-28818	612	7	bit	bit	NOUN
ajst-28818	612	8	,	,	PUNCT
ajst-28818	612	9	the	the	DET
ajst-28818	612	10	poincaré	poincaré	PROPN
ajst-28818	612	11	mapping	mapping	NOUN
ajst-28818	612	12	points	point	NOUN
ajst-28818	612	13	at	at	ADP
ajst-28818	612	14	5.2	5.2	NUM
ajst-28818	612	15	s	s	NOUN
ajst-28818	612	16	are	be	AUX
ajst-28818	612	17	relatively	relatively	ADV
ajst-28818	612	18	scattered	scatter	VERB
ajst-28818	612	19	,	,	PUNCT
ajst-28818	612	20	indicating	indicate	VERB
ajst-28818	612	21	that	that	SCONJ
ajst-28818	612	22	the	the	DET
ajst-28818	612	23	torsional	torsional	ADJ
ajst-28818	612	24	oscillations	oscillation	NOUN
ajst-28818	612	25	have	have	VERB
ajst-28818	612	26	chaotic	chaotic	ADJ
ajst-28818	612	27	features	feature	NOUN
ajst-28818	612	28	.	.	PUNCT
ajst-28818	613	1	figure	figure	VERB
ajst-28818	613	2	30	30	NUM
ajst-28818	613	3	.	.	PUNCT
ajst-28818	614	1	torsion	torsion	NOUN
ajst-28818	614	2	-	-	PUNCT
ajst-28818	614	3	response	response	NOUN
ajst-28818	614	4	of	of	ADP
ajst-28818	614	5	drill	drill	NOUN
ajst-28818	614	6	-	-	PUNCT
ajst-28818	614	7	string	string	NOUN
ajst-28818	614	8	at	at	ADP
ajst-28818	614	9	1250	1250	NUM
ajst-28818	614	10	m	m	NOUN
ajst-28818	614	11	depth	depth	NOUN
ajst-28818	614	12	:	:	PUNCT
ajst-28818	614	13	(	(	PUNCT
ajst-28818	614	14	a	a	X
ajst-28818	614	15	)	)	PUNCT
ajst-28818	614	16	rotational	rotational	ADJ
ajst-28818	614	17	speed	speed	NOUN
ajst-28818	614	18	,	,	PUNCT
ajst-28818	614	19	(	(	PUNCT
ajst-28818	614	20	b)-(g	b)-(g	NOUN
ajst-28818	614	21	)	)	PUNCT
ajst-28818	614	22	amplitude	amplitude	NOUN
ajst-28818	614	23	-	-	PUNCT
ajst-28818	614	24	frequency	frequency	NOUN
ajst-28818	614	25	response	response	NOUN
ajst-28818	614	26	,	,	PUNCT
ajst-28818	614	27	phase	phase	NOUN
ajst-28818	614	28	diagram	diagram	NOUN
ajst-28818	614	29	and	and	CCONJ
ajst-28818	614	30	poincaré	poincaré	PROPN
ajst-28818	614	31	map	map	VERB
ajst-28818	614	32	4	4	NUM
ajst-28818	614	33	.	.	PUNCT
ajst-28818	614	34	conclusions	conclusion	NOUN
ajst-28818	614	35	and	and	CCONJ
ajst-28818	614	36	recommendations	recommendation	NOUN
ajst-28818	614	37	in	in	ADP
ajst-28818	614	38	this	this	DET
ajst-28818	614	39	paper	paper	NOUN
ajst-28818	614	40	,	,	PUNCT
ajst-28818	614	41	an	an	DET
ajst-28818	614	42	alt	alt	ADJ
ajst-28818	614	43	bidirectional	bidirectional	ADJ
ajst-28818	614	44	coupling	couple	VERB
ajst-28818	614	45	nonlinear	nonlinear	ADJ
ajst-28818	614	46	drill	drill	NOUN
ajst-28818	614	47	-	-	PUNCT
ajst-28818	614	48	string	string	NOUN
ajst-28818	614	49	element	element	NOUN
ajst-28818	614	50	suitable	suitable	ADJ
ajst-28818	614	51	for	for	ADP
ajst-28818	614	52	riserless	riserless	NOUN
ajst-28818	614	53	drilling	drilling	NOUN
ajst-28818	614	54	is	be	AUX
ajst-28818	614	55	established	establish	VERB
ajst-28818	614	56	by	by	ADP
ajst-28818	614	57	energy	energy	NOUN
ajst-28818	614	58	method	method	NOUN
ajst-28818	614	59	and	and	CCONJ
ajst-28818	614	60	finite	finite	ADJ
ajst-28818	614	61	element	element	NOUN
ajst-28818	614	62	method	method	NOUN
ajst-28818	614	63	,	,	PUNCT
ajst-28818	614	64	and	and	CCONJ
ajst-28818	614	65	a	a	DET
ajst-28818	614	66	bidirectional	bidirectional	ADJ
ajst-28818	614	67	coupling	coupling	NOUN
ajst-28818	614	68	solution	solution	NOUN
ajst-28818	614	69	is	be	AUX
ajst-28818	614	70	proposed	propose	VERB
ajst-28818	614	71	by	by	ADP
ajst-28818	614	72	using	use	VERB
ajst-28818	614	73	the	the	DET
ajst-28818	614	74	newmark	newmark	NOUN
ajst-28818	614	75	-	-	PUNCT
ajst-28818	614	76	β	β	NOUN
ajst-28818	614	77	method	method	NOUN
ajst-28818	614	78	.	.	PUNCT
ajst-28818	615	1	the	the	DET
ajst-28818	615	2	alt	alt	PROPN
ajst-28818	615	3	coupling	couple	VERB
ajst-28818	615	4	nonlinear	nonlinear	ADJ
ajst-28818	615	5	vibration	vibration	NOUN
ajst-28818	615	6	model	model	NOUN
ajst-28818	615	7	of	of	ADP
ajst-28818	615	8	drilling	drilling	NOUN
ajst-28818	615	9	string	string	NOUN
ajst-28818	615	10	in	in	ADP
ajst-28818	615	11	deep	deep	ADJ
ajst-28818	615	12	-	-	PUNCT
ajst-28818	615	13	water	water	NOUN
ajst-28818	615	14	riser	riser	NOUN
ajst-28818	615	15	-	-	PUNCT
ajst-28818	615	16	free	free	ADJ
ajst-28818	615	17	drilling	drilling	NOUN
ajst-28818	615	18	is	be	AUX
ajst-28818	615	19	established	establish	VERB
ajst-28818	615	20	considering	consider	VERB
ajst-28818	615	21	the	the	DET
ajst-28818	615	22	platform	platform	NOUN
ajst-28818	615	23	heave	heave	VERB
ajst-28818	615	24	and	and	CCONJ
ajst-28818	615	25	slow	slow	VERB
ajst-28818	615	26	drift	drift	NOUN
ajst-28818	615	27	motion	motion	NOUN
ajst-28818	615	28	,	,	PUNCT
ajst-28818	615	29	wind	wind	NOUN
ajst-28818	615	30	current	current	NOUN
ajst-28818	615	31	,	,	PUNCT
ajst-28818	615	32	ocean	ocean	NOUN
ajst-28818	615	33	current	current	ADJ
ajst-28818	615	34	and	and	CCONJ
ajst-28818	615	35	wave	wave	NOUN
ajst-28818	615	36	load	load	NOUN
ajst-28818	615	37	,	,	PUNCT
ajst-28818	615	38	wall	wall	NOUN
ajst-28818	615	39	contact	contact	NOUN
ajst-28818	615	40	and	and	CCONJ
ajst-28818	615	41	drillbit	drillbit	VERB
ajst-28818	615	42	rock	rock	NOUN
ajst-28818	615	43	interaction	interaction	NOUN
ajst-28818	615	44	.	.	PUNCT
ajst-28818	616	1	the	the	DET
ajst-28818	616	2	corresponding	corresponding	ADJ
ajst-28818	616	3	matlab	matlab	PROPN
ajst-28818	616	4	calculation	calculation	NOUN
ajst-28818	616	5	code	code	NOUN
ajst-28818	616	6	is	be	AUX
ajst-28818	616	7	compiled	compile	VERB
ajst-28818	616	8	.	.	PUNCT
ajst-28818	617	1	field	field	NOUN
ajst-28818	617	2	test	test	NOUN
ajst-28818	617	3	results	result	NOUN
ajst-28818	617	4	of	of	ADP
ajst-28818	617	5	kyllingstad	kyllingstad	NOUN
ajst-28818	617	6	and	and	CCONJ
ajst-28818	617	7	nessjøen	nessjøen	NOUN
ajst-28818	617	8	(	(	PUNCT
ajst-28818	617	9	2009	2009	NUM
ajst-28818	617	10	)	)	PUNCT
ajst-28818	617	11	and	and	CCONJ
ajst-28818	617	12	teng	teng	PROPN
ajst-28818	617	13	(	(	PUNCT
ajst-28818	617	14	2017	2017	NUM
ajst-28818	617	15	)	)	PUNCT
ajst-28818	617	16	and	and	CCONJ
ajst-28818	617	17	parameters	parameter	NOUN
ajst-28818	617	18	of	of	ADP
ajst-28818	617	19	four	four	NUM
ajst-28818	617	20	example	example	NOUN
ajst-28818	617	21	wells	well	NOUN
ajst-28818	617	22	in	in	ADP
ajst-28818	617	23	legong	legong	ADJ
ajst-28818	618	1	,	,	PUNCT
ajst-28818	618	2	south	south	PROPN
ajst-28818	618	3	china	china	PROPN
ajst-28818	618	4	sea	sea	PROPN
ajst-28818	618	5	are	be	AUX
ajst-28818	618	6	used	use	VERB
ajst-28818	618	7	to	to	PART
ajst-28818	618	8	verify	verify	VERB
ajst-28818	618	9	the	the	DET
ajst-28818	618	10	model	model	NOUN
ajst-28818	618	11	results	result	NOUN
ajst-28818	618	12	.	.	PUNCT
ajst-28818	619	1	the	the	DET
ajst-28818	619	2	influence	influence	NOUN
ajst-28818	619	3	of	of	ADP
ajst-28818	619	4	heave	heave	ADJ
ajst-28818	619	5	compensator	compensator	NOUN
ajst-28818	619	6	on	on	ADP
ajst-28818	619	7	drill	drill	NOUN
ajst-28818	619	8	-	-	PUNCT
ajst-28818	619	9	string	string	NOUN
ajst-28818	619	10	vibration	vibration	NOUN
ajst-28818	619	11	is	be	AUX
ajst-28818	619	12	analyzed	analyze	VERB
ajst-28818	619	13	.	.	PUNCT
ajst-28818	620	1	the	the	DET
ajst-28818	620	2	results	result	NOUN
ajst-28818	620	3	show	show	VERB
ajst-28818	620	4	that	that	PRON
ajst-28818	620	5	heave	heave	VERB
ajst-28818	620	6	compensator	compensator	NOUN
ajst-28818	620	7	can	can	AUX
ajst-28818	620	8	effectively	effectively	ADV
ajst-28818	620	9	reduce	reduce	VERB
ajst-28818	620	10	bit	bit	NOUN
ajst-28818	620	11	pressure	pressure	NOUN
ajst-28818	620	12	fluctuation	fluctuation	NOUN
ajst-28818	620	13	,	,	PUNCT
ajst-28818	620	14	avoid	avoid	VERB
ajst-28818	620	15	skip	skip	ADJ
ajst-28818	620	16	drilling	drilling	NOUN
ajst-28818	620	17	and	and	CCONJ
ajst-28818	620	18	bit	bit	NOUN
ajst-28818	620	19	reversal	reversal	NOUN
ajst-28818	620	20	,	,	PUNCT
ajst-28818	620	21	and	and	CCONJ
ajst-28818	620	22	reduce	reduce	VERB
ajst-28818	620	23	drill	drill	NOUN
ajst-28818	620	24	-	-	PUNCT
ajst-28818	620	25	string	string	NOUN
ajst-28818	620	26	lateral	lateral	ADJ
ajst-28818	620	27	vibration	vibration	NOUN
ajst-28818	620	28	in	in	ADP
ajst-28818	620	29	seawater	seawater	NOUN
ajst-28818	620	30	section	section	NOUN
ajst-28818	620	31	.	.	PUNCT
ajst-28818	621	1	the	the	DET
ajst-28818	621	2	influence	influence	NOUN
ajst-28818	621	3	of	of	ADP
ajst-28818	621	4	platform	platform	NOUN
ajst-28818	621	5	heave	heave	VERB
ajst-28818	621	6	and	and	CCONJ
ajst-28818	621	7	slow	slow	VERB
ajst-28818	621	8	drift	drift	NOUN
ajst-28818	621	9	motion	motion	NOUN
ajst-28818	621	10	on	on	ADP
ajst-28818	621	11	drill	drill	NOUN
ajst-28818	621	12	-	-	PUNCT
ajst-28818	621	13	string	string	NOUN
ajst-28818	621	14	vibration	vibration	NOUN
ajst-28818	621	15	is	be	AUX
ajst-28818	621	16	analyzed	analyze	VERB
ajst-28818	621	17	.	.	PUNCT
ajst-28818	622	1	the	the	DET
ajst-28818	622	2	results	result	NOUN
ajst-28818	622	3	show	show	VERB
ajst-28818	622	4	that	that	PRON
ajst-28818	622	5	heave	heave	VERB
ajst-28818	622	6	and	and	CCONJ
ajst-28818	622	7	slow	slow	ADJ
ajst-28818	622	8	drift	drift	NOUN
ajst-28818	622	9	motion	motion	NOUN
ajst-28818	622	10	should	should	AUX
ajst-28818	622	11	be	be	AUX
ajst-28818	622	12	considered	consider	VERB
ajst-28818	622	13	simultaneously	simultaneously	ADV
ajst-28818	622	14	when	when	SCONJ
ajst-28818	622	15	simulating	simulate	VERB
ajst-28818	622	16	drillstring	drillstring	NOUN
ajst-28818	622	17	process	process	NOUN
ajst-28818	622	18	.	.	PUNCT
ajst-28818	623	1	the	the	DET
ajst-28818	623	2	influence	influence	NOUN
ajst-28818	623	3	of	of	ADP
ajst-28818	623	4	different	different	ADJ
ajst-28818	623	5	heave	heave	ADJ
ajst-28818	623	6	amplitude	amplitude	NOUN
ajst-28818	623	7	and	and	CCONJ
ajst-28818	623	8	period	period	NOUN
ajst-28818	623	9	,	,	PUNCT
ajst-28818	623	10	slow	slow	ADJ
ajst-28818	623	11	drift	drift	NOUN
ajst-28818	623	12	amplitude	amplitude	NOUN
ajst-28818	623	13	and	and	CCONJ
ajst-28818	623	14	period	period	NOUN
ajst-28818	623	15	of	of	ADP
ajst-28818	623	16	the	the	DET
ajst-28818	623	17	platform	platform	NOUN
ajst-28818	623	18	on	on	ADP
ajst-28818	623	19	drill	drill	NOUN
ajst-28818	623	20	-	-	PUNCT
ajst-28818	623	21	string	string	NOUN
ajst-28818	623	22	vibration	vibration	NOUN
ajst-28818	623	23	is	be	AUX
ajst-28818	623	24	analyzed	analyze	VERB
ajst-28818	623	25	.	.	PUNCT
ajst-28818	624	1	the	the	DET
ajst-28818	624	2	results	result	NOUN
ajst-28818	624	3	show	show	VERB
ajst-28818	624	4	that	that	SCONJ
ajst-28818	624	5	the	the	DET
ajst-28818	624	6	drill	drill	NOUN
ajst-28818	624	7	-	-	PUNCT
ajst-28818	624	8	string	string	NOUN
ajst-28818	624	9	moves	move	NOUN
ajst-28818	624	10	periodically	periodically	ADV
ajst-28818	624	11	with	with	ADP
ajst-28818	624	12	the	the	DET
ajst-28818	624	13	platform	platform	NOUN
ajst-28818	624	14	in	in	ADP
ajst-28818	624	15	the	the	DET
ajst-28818	624	16	lateral	lateral	ADJ
ajst-28818	624	17	direction	direction	NOUN
ajst-28818	624	18	,	,	PUNCT
ajst-28818	624	19	and	and	CCONJ
ajst-28818	624	20	the	the	DET
ajst-28818	624	21	lateral	lateral	ADJ
ajst-28818	624	22	fluctuation	fluctuation	NOUN
ajst-28818	624	23	caused	cause	VERB
ajst-28818	624	24	by	by	ADP
ajst-28818	624	25	the	the	DET
ajst-28818	624	26	platform	platform	NOUN
ajst-28818	624	27	's	's	PART
ajst-28818	624	28	heave	heave	ADJ
ajst-28818	624	29	motion	motion	NOUN
ajst-28818	624	30	is	be	AUX
ajst-28818	624	31	small	small	ADJ
ajst-28818	624	32	due	due	ADP
ajst-28818	624	33	to	to	ADP
ajst-28818	624	34	the	the	DET
ajst-28818	624	35	presence	presence	NOUN
ajst-28818	624	36	of	of	ADP
ajst-28818	624	37	heave	heave	NOUN
ajst-28818	624	38	compensator	compensator	NOUN
ajst-28818	624	39	.	.	PUNCT
ajst-28818	625	1	the	the	DET
ajst-28818	625	2	axial	axial	ADJ
ajst-28818	625	3	displacement	displacement	NOUN
ajst-28818	625	4	of	of	ADP
ajst-28818	625	5	the	the	DET
ajst-28818	625	6	top	top	NOUN
ajst-28818	625	7	of	of	ADP
ajst-28818	625	8	the	the	DET
ajst-28818	625	9	drill	drill	NOUN
ajst-28818	625	10	-	-	PUNCT
ajst-28818	625	11	string	string	NOUN
ajst-28818	625	12	and	and	CCONJ
ajst-28818	625	13	the	the	DET
ajst-28818	625	14	wob	wob	NOUN
ajst-28818	625	15	are	be	AUX
ajst-28818	625	16	affected	affect	VERB
ajst-28818	625	17	by	by	ADP
ajst-28818	625	18	both	both	CCONJ
ajst-28818	625	19	the	the	DET
ajst-28818	625	20	slow	slow	ADJ
ajst-28818	625	21	drift	drift	NOUN
ajst-28818	625	22	and	and	CCONJ
ajst-28818	625	23	heave	heave	VERB
ajst-28818	625	24	motion	motion	NOUN
ajst-28818	625	25	of	of	ADP
ajst-28818	625	26	the	the	DET
ajst-28818	625	27	platform	platform	NOUN
ajst-28818	625	28	.	.	PUNCT
ajst-28818	626	1	the	the	DET
ajst-28818	626	2	axial	axial	ADJ
ajst-28818	626	3	displacement	displacement	NOUN
ajst-28818	626	4	of	of	ADP
ajst-28818	626	5	the	the	DET
ajst-28818	626	6	top	top	NOUN
ajst-28818	626	7	of	of	ADP
ajst-28818	626	8	the	the	DET
ajst-28818	626	9	drillstring	drillstring	NOUN
ajst-28818	626	10	is	be	AUX
ajst-28818	626	11	mainly	mainly	ADV
ajst-28818	626	12	affected	affect	VERB
ajst-28818	626	13	by	by	ADP
ajst-28818	626	14	the	the	DET
ajst-28818	626	15	slow	slow	ADJ
ajst-28818	626	16	drift	drift	NOUN
ajst-28818	626	17	motion	motion	NOUN
ajst-28818	626	18	,	,	PUNCT
ajst-28818	626	19	and	and	CCONJ
ajst-28818	626	20	the	the	DET
ajst-28818	626	21	wob	wob	NOUN
ajst-28818	626	22	is	be	AUX
ajst-28818	626	23	mainly	mainly	ADV
ajst-28818	626	24	affected	affect	VERB
ajst-28818	626	25	by	by	ADP
ajst-28818	626	26	the	the	DET
ajst-28818	626	27	heave	heave	ADJ
ajst-28818	626	28	motion	motion	NOUN
ajst-28818	626	29	.	.	PUNCT
ajst-28818	627	1	when	when	SCONJ
ajst-28818	627	2	the	the	DET
ajst-28818	627	3	amplitude	amplitude	NOUN
ajst-28818	627	4	,	,	PUNCT
ajst-28818	627	5	frequency	frequency	NOUN
ajst-28818	627	6	of	of	ADP
ajst-28818	627	7	heave	heave	ADJ
ajst-28818	627	8	motion	motion	NOUN
ajst-28818	627	9	and	and	CCONJ
ajst-28818	627	10	amplitude	amplitude	NOUN
ajst-28818	627	11	of	of	ADP
ajst-28818	627	12	slow	slow	ADJ
ajst-28818	627	13	drift	drift	NOUN
ajst-28818	627	14	motion	motion	NOUN
ajst-28818	627	15	are	be	AUX
ajst-28818	627	16	large	large	ADJ
ajst-28818	627	17	,	,	PUNCT
ajst-28818	627	18	the	the	DET
ajst-28818	627	19	heave	heave	NOUN
ajst-28818	627	20	compensator	compensator	NOUN
ajst-28818	627	21	should	should	AUX
ajst-28818	627	22	be	be	AUX
ajst-28818	627	23	added	add	VERB
ajst-28818	627	24	to	to	PART
ajst-28818	627	25	compensate	compensate	VERB
ajst-28818	627	26	the	the	DET
ajst-28818	627	27	cylinder	cylinder	NOUN
ajst-28818	627	28	stroke	stroke	NOUN
ajst-28818	627	29	.	.	PUNCT
ajst-28818	628	1	the	the	PRON
ajst-28818	628	2	larger	large	ADJ
ajst-28818	628	3	the	the	DET
ajst-28818	628	4	amplitude	amplitude	NOUN
ajst-28818	628	5	of	of	ADP
ajst-28818	628	6	slow	slow	ADJ
ajst-28818	628	7	drift	drift	NOUN
ajst-28818	628	8	motion	motion	NOUN
ajst-28818	628	9	,	,	PUNCT
ajst-28818	628	10	the	the	PRON
ajst-28818	628	11	shorter	short	ADJ
ajst-28818	628	12	the	the	DET
ajst-28818	628	13	period	period	NOUN
ajst-28818	628	14	,	,	PUNCT
ajst-28818	628	15	the	the	PRON
ajst-28818	628	16	stronger	strong	ADJ
ajst-28818	628	17	the	the	DET
ajst-28818	628	18	nonlinear	nonlinear	ADJ
ajst-28818	628	19	characteristics	characteristic	NOUN
ajst-28818	628	20	of	of	ADP
ajst-28818	628	21	drill	drill	NOUN
ajst-28818	628	22	-	-	PUNCT
ajst-28818	628	23	string	string	NOUN
ajst-28818	628	24	and	and	CCONJ
ajst-28818	628	25	bit	bit	NOUN
ajst-28818	628	26	rotation	rotation	NOUN
ajst-28818	628	27	.	.	PUNCT
ajst-28818	629	1	when	when	SCONJ
ajst-28818	629	2	the	the	DET
ajst-28818	629	3	heave	heave	ADJ
ajst-28818	629	4	amplitude	amplitude	NOUN
ajst-28818	629	5	is	be	AUX
ajst-28818	629	6	large	large	ADJ
ajst-28818	629	7	,	,	PUNCT
ajst-28818	629	8	it	it	PRON
ajst-28818	629	9	is	be	AUX
ajst-28818	629	10	easy	easy	ADJ
ajst-28818	629	11	to	to	PART
ajst-28818	629	12	cause	cause	VERB
ajst-28818	629	13	axial	axial	ADJ
ajst-28818	629	14	and	and	CCONJ
ajst-28818	629	15	torsion	torsion	NOUN
ajst-28818	629	16	resonance	resonance	NOUN
ajst-28818	629	17	,	,	PUNCT
ajst-28818	629	18	which	which	PRON
ajst-28818	629	19	is	be	AUX
ajst-28818	629	20	not	not	PART
ajst-28818	629	21	conducive	conducive	ADJ
ajst-28818	629	22	to	to	ADP
ajst-28818	629	23	the	the	DET
ajst-28818	629	24	life	life	NOUN
ajst-28818	629	25	of	of	ADP
ajst-28818	629	26	drillstring	drillstring	NOUN
ajst-28818	629	27	and	and	CCONJ
ajst-28818	629	28	bit	bit	NOUN
ajst-28818	629	29	.	.	PUNCT
ajst-28818	630	1	and	and	CCONJ
ajst-28818	630	2	when	when	SCONJ
ajst-28818	630	3	the	the	DET
ajst-28818	630	4	heave	heave	ADJ
ajst-28818	630	5	amplitude	amplitude	NOUN
ajst-28818	630	6	and	and	CCONJ
ajst-28818	630	7	period	period	NOUN
ajst-28818	630	8	are	be	AUX
ajst-28818	630	9	relatively	relatively	ADV
ajst-28818	630	10	large	large	ADJ
ajst-28818	630	11	,	,	PUNCT
ajst-28818	630	12	it	it	PRON
ajst-28818	630	13	is	be	AUX
ajst-28818	630	14	easier	easy	ADJ
ajst-28818	630	15	to	to	PART
ajst-28818	630	16	cause	cause	VERB
ajst-28818	630	17	the	the	DET
ajst-28818	630	18	drill	drill	NOUN
ajst-28818	630	19	-	-	PUNCT
ajst-28818	630	20	string	string	NOUN
ajst-28818	630	21	torsion	torsion	NOUN
ajst-28818	630	22	307	307	NUM
ajst-28818	630	23	deformation	deformation	NOUN
ajst-28818	630	24	to	to	PART
ajst-28818	630	25	increase	increase	VERB
ajst-28818	630	26	,	,	PUNCT
ajst-28818	630	27	the	the	DET
ajst-28818	630	28	torque	torque	NOUN
ajst-28818	630	29	to	to	PART
ajst-28818	630	30	increase	increase	VERB
ajst-28818	630	31	,	,	PUNCT
ajst-28818	630	32	and	and	CCONJ
ajst-28818	630	33	even	even	ADV
ajst-28818	630	34	lead	lead	VERB
ajst-28818	630	35	to	to	ADP
ajst-28818	630	36	the	the	DET
ajst-28818	630	37	bit	bit	NOUN
ajst-28818	630	38	reversal	reversal	NOUN
ajst-28818	630	39	.	.	PUNCT
ajst-28818	631	1	so	so	ADV
ajst-28818	631	2	it	it	PRON
ajst-28818	631	3	is	be	AUX
ajst-28818	631	4	very	very	ADV
ajst-28818	631	5	important	important	ADJ
ajst-28818	631	6	to	to	PART
ajst-28818	631	7	control	control	VERB
ajst-28818	631	8	the	the	DET
ajst-28818	631	9	heave	heave	ADJ
ajst-28818	631	10	motion	motion	NOUN
ajst-28818	631	11	of	of	ADP
ajst-28818	631	12	the	the	DET
ajst-28818	631	13	platform	platform	NOUN
ajst-28818	631	14	.	.	PUNCT
ajst-28818	632	1	compliance	compliance	NOUN
ajst-28818	632	2	with	with	ADP
ajst-28818	632	3	ethical	ethical	ADJ
ajst-28818	632	4	standards	standard	NOUN
ajst-28818	632	5	conflict	conflict	NOUN
ajst-28818	632	6	of	of	ADP
ajst-28818	632	7	interest	interest	NOUN
ajst-28818	632	8	the	the	DET
ajst-28818	632	9	authors	author	NOUN
ajst-28818	632	10	declare	declare	VERB
ajst-28818	632	11	that	that	SCONJ
ajst-28818	632	12	they	they	PRON
ajst-28818	632	13	have	have	VERB
ajst-28818	632	14	no	no	DET
ajst-28818	632	15	conflict	conflict	NOUN
ajst-28818	632	16	of	of	ADP
ajst-28818	632	17	interest	interest	NOUN
ajst-28818	632	18	.	.	PUNCT
ajst-28818	633	1	data	datum	NOUN
ajst-28818	633	2	availability	availability	NOUN
ajst-28818	633	3	the	the	DET
ajst-28818	633	4	data	datum	NOUN
ajst-28818	633	5	used	use	VERB
ajst-28818	633	6	to	to	PART
ajst-28818	633	7	support	support	VERB
ajst-28818	633	8	the	the	DET
ajst-28818	633	9	findings	finding	NOUN
ajst-28818	633	10	of	of	ADP
ajst-28818	633	11	this	this	DET
ajst-28818	633	12	study	study	NOUN
ajst-28818	633	13	are	be	AUX
ajst-28818	633	14	included	include	VERB
ajst-28818	633	15	within	within	ADP
ajst-28818	633	16	the	the	DET
ajst-28818	633	17	article	article	NOUN
ajst-28818	633	18	.	.	PUNCT
ajst-28818	634	1	the	the	DET
ajst-28818	634	2	processed	process	VERB
ajst-28818	634	3	data	datum	NOUN
ajst-28818	634	4	are	be	AUX
ajst-28818	634	5	available	available	ADJ
ajst-28818	634	6	from	from	ADP
ajst-28818	634	7	the	the	DET
ajst-28818	634	8	corresponding	corresponding	ADJ
ajst-28818	634	9	author	author	NOUN
ajst-28818	634	10	upon	upon	SCONJ
ajst-28818	634	11	request	request	NOUN
ajst-28818	634	12	.	.	PUNCT
ajst-28818	635	1	funding	fund	VERB
ajst-28818	635	2	the	the	DET
ajst-28818	635	3	project	project	NOUN
ajst-28818	635	4	is	be	AUX
ajst-28818	635	5	supported	support	VERB
ajst-28818	635	6	by	by	ADP
ajst-28818	635	7	the	the	DET
ajst-28818	635	8	national	national	ADJ
ajst-28818	635	9	natural	natural	PROPN
ajst-28818	635	10	science	science	PROPN
ajst-28818	635	11	foundation	foundation	PROPN
ajst-28818	635	12	of	of	ADP
ajst-28818	635	13	china	china	PROPN
ajst-28818	635	14	(	(	PUNCT
ajst-28818	635	15	grant	grant	VERB
ajst-28818	635	16	no	no	NOUN
ajst-28818	635	17	.	.	NOUN
ajst-28818	635	18	51875489	51875489	NUM
ajst-28818	635	19	)	)	PUNCT
ajst-28818	635	20	and	and	CCONJ
ajst-28818	635	21	sichuan	sichuan	PROPN
ajst-28818	635	22	science	science	PROPN
ajst-28818	635	23	and	and	CCONJ
ajst-28818	635	24	technology	technology	NOUN
ajst-28818	635	25	program	program	NOUN
ajst-28818	635	26	(	(	PUNCT
ajst-28818	635	27	grant	grant	VERB
ajst-28818	635	28	no	no	NOUN
ajst-28818	635	29	.	.	NOUN
ajst-28818	635	30	2022yfq0034	2022yfq0034	NUM
ajst-28818	635	31	)	)	PUNCT
ajst-28818	635	32	.	.	PUNCT
ajst-28818	636	1	appendix	appendix	PROPN
ajst-28818	636	2	a1	a1	PROPN
ajst-28818	636	3	.	.	PUNCT
ajst-28818	637	1	tf	tf	X
ajst-28818	637	2	the	the	DET
ajst-28818	637	3	top	top	NOUN
ajst-28818	637	4	of	of	ADP
ajst-28818	637	5	the	the	DET
ajst-28818	637	6	drill	drill	NOUN
ajst-28818	637	7	-	-	PUNCT
ajst-28818	637	8	string	string	NOUN
ajst-28818	637	9	is	be	AUX
ajst-28818	637	10	connected	connect	VERB
ajst-28818	637	11	to	to	ADP
ajst-28818	637	12	the	the	DET
ajst-28818	637	13	platform	platform	NOUN
ajst-28818	637	14	through	through	ADP
ajst-28818	637	15	the	the	DET
ajst-28818	637	16	passive	passive	ADJ
ajst-28818	637	17	heave	heave	NOUN
ajst-28818	637	18	compensation	compensation	NOUN
ajst-28818	637	19	device	device	NOUN
ajst-28818	637	20	,	,	PUNCT
ajst-28818	637	21	which	which	PRON
ajst-28818	637	22	can	can	AUX
ajst-28818	637	23	be	be	AUX
ajst-28818	637	24	regarded	regard	VERB
ajst-28818	637	25	as	as	ADP
ajst-28818	637	26	a	a	DET
ajst-28818	637	27	gas	gas	NOUN
ajst-28818	637	28	-	-	PUNCT
ajst-28818	637	29	liquid	liquid	ADJ
ajst-28818	637	30	spring	spring	NOUN
ajst-28818	637	31	on	on	ADP
ajst-28818	637	32	the	the	DET
ajst-28818	637	33	top	top	NOUN
ajst-28818	637	34	of	of	ADP
ajst-28818	637	35	the	the	DET
ajst-28818	637	36	drill	drill	NOUN
ajst-28818	637	37	-	-	PUNCT
ajst-28818	637	38	string	string	NOUN
ajst-28818	637	39	.	.	PUNCT
ajst-28818	638	1	the	the	DET
ajst-28818	638	2	piston	piston	NOUN
ajst-28818	638	3	,	,	PUNCT
ajst-28818	638	4	piston	piston	NOUN
ajst-28818	638	5	rod	rod	NOUN
ajst-28818	638	6	,	,	PUNCT
ajst-28818	638	7	lower	low	ADJ
ajst-28818	638	8	frame	frame	NOUN
ajst-28818	638	9	and	and	CCONJ
ajst-28818	638	10	hook	hook	NOUN
ajst-28818	638	11	of	of	ADP
ajst-28818	638	12	the	the	DET
ajst-28818	638	13	compensator	compensator	NOUN
ajst-28818	638	14	device	device	NOUN
ajst-28818	638	15	are	be	AUX
ajst-28818	638	16	regarded	regard	VERB
ajst-28818	638	17	as	as	ADP
ajst-28818	638	18	a	a	DET
ajst-28818	638	19	concentrated	concentrated	ADJ
ajst-28818	638	20	mass	mass	NOUN
ajst-28818	638	21	at	at	ADP
ajst-28818	638	22	the	the	DET
ajst-28818	638	23	top	top	NOUN
ajst-28818	638	24	of	of	ADP
ajst-28818	638	25	the	the	DET
ajst-28818	638	26	drill	drill	NOUN
ajst-28818	638	27	-	-	PUNCT
ajst-28818	638	28	string	string	NOUN
ajst-28818	638	29	.	.	PUNCT
ajst-28818	639	1	the	the	DET
ajst-28818	639	2	force	force	NOUN
ajst-28818	639	3	acting	act	VERB
ajst-28818	639	4	on	on	ADP
ajst-28818	639	5	the	the	DET
ajst-28818	639	6	heave	heave	NOUN
ajst-28818	639	7	compensation	compensation	NOUN
ajst-28818	639	8	device	device	NOUN
ajst-28818	639	9	is	be	AUX
ajst-28818	639	10	treated	treat	VERB
ajst-28818	639	11	as	as	ADP
ajst-28818	639	12	a	a	DET
ajst-28818	639	13	weightless	weightless	ADJ
ajst-28818	639	14	spring	spring	NOUN
ajst-28818	639	15	with	with	ADP
ajst-28818	639	16	stiffness	stiffness	ADJ
ajst-28818	639	17	coefficient	coefficient	NOUN
ajst-28818	639	18	tk	tk	NOUN
ajst-28818	639	19	and	and	CCONJ
ajst-28818	639	20	fluid	fluid	ADJ
ajst-28818	639	21	viscous	viscous	ADJ
ajst-28818	639	22	drag	drag	NOUN
ajst-28818	639	23	coefficient	coefficient	NOUN
ajst-28818	639	24	tc	tc	X
ajst-28818	639	25	(	(	PUNCT
ajst-28818	639	26	woodacre	woodacre	VERB
ajst-28818	639	27	et	et	PROPN
ajst-28818	639	28	al	al	PROPN
ajst-28818	639	29	.	.	PROPN
ajst-28818	639	30	,	,	PUNCT
ajst-28818	639	31	2015	2015	NUM
ajst-28818	639	32	;	;	PUNCT
ajst-28818	639	33	niedzwecki	niedzwecki	NOUN
ajst-28818	639	34	and	and	CCONJ
ajst-28818	639	35	thampi	thampi	PROPN
ajst-28818	639	36	,	,	PUNCT
ajst-28818	639	37	1988	1988	NUM
ajst-28818	639	38	)	)	PUNCT
ajst-28818	639	39	.	.	PUNCT
ajst-28818	640	1	thus	thus	ADV
ajst-28818	640	2	,	,	PUNCT
ajst-28818	640	3	the	the	DET
ajst-28818	640	4	top	top	ADJ
ajst-28818	640	5	tension	tension	NOUN
ajst-28818	640	6	at	at	ADP
ajst-28818	640	7	the	the	DET
ajst-28818	640	8	upper	upper	ADJ
ajst-28818	640	9	end	end	NOUN
ajst-28818	640	10	of	of	ADP
ajst-28818	640	11	the	the	DET
ajst-28818	640	12	drill	drill	NOUN
ajst-28818	640	13	-	-	PUNCT
ajst-28818	640	14	string	string	NOUN
ajst-28818	640	15	is	be	AUX
ajst-28818	640	16	expressed	express	VERB
ajst-28818	640	17	as	as	ADP
ajst-28818	640	18	:	:	PUNCT
ajst-28818	640	19	0	0	NUM
ajst-28818	640	20	0	0	NUM
ajst-28818	640	21	0	0	NUM
ajst-28818	640	22	0	0	NUM
ajst-28818	640	23	2	2	NUM
ajst-28818	640	24	0	0	NUM
ajst-28818	640	25	0	0	NUM
ajst-28818	640	26	1	1	NUM
ajst-28818	640	27	t	t	NOUN
ajst-28818	640	28	t	t	NOUN
ajst-28818	640	29	r	r	NOUN
ajst-28818	640	30	s	s	PROPN
ajst-28818	640	31	z	z	NOUN
ajst-28818	640	32	t	t	NOUN
ajst-28818	640	33	s	s	PROPN
ajst-28818	640	34	z	z	NOUN
ajst-28818	640	35	t	t	PROPN
ajst-28818	640	36	z	z	PROPN
ajst-28818	640	37	c	c	PROPN
ajst-28818	641	1	t	t	PROPN
ajst-28818	641	2	t	t	X
ajst-28818	642	1	f	f	PROPN
ajst-28818	642	2	f	f	PROPN
ajst-28818	643	1	k	k	PROPN
ajst-28818	643	2	w	w	PROPN
ajst-28818	643	3	w	w	PROPN
ajst-28818	643	4	c	c	PROPN
ajst-28818	643	5	w	w	PROPN
ajst-28818	643	6	w	w	PROPN
ajst-28818	643	7	m	m	PROPN
ajst-28818	643	8	w	w	ADP
ajst-28818	643	9	a	a	DET
ajst-28818	643	10	p	p	NOUN
ajst-28818	643	11	a	a	DET
ajst-28818	643	12	k	k	NOUN
ajst-28818	643	13	v	v	X
ajst-28818	643	14	c	c	PROPN
ajst-28818	643	15	b	b	X
ajst-28818	643	16	w	w	VERB
ajst-28818	643	17			NOUN
ajst-28818	644	1			NUM
ajst-28818	644	2			PROPN
ajst-28818	644	3			NOUN
ajst-28818	644	4			ADP
ajst-28818	644	5			PROPN
ajst-28818	644	6			PROPN
ajst-28818	644	7			PROPN
ajst-28818	644	8			PROPN
ajst-28818	644	9			NOUN
ajst-28818	644	10			PROPN
ajst-28818	644	11			PRON
ajst-28818	644	12			PROPN
ajst-28818	644	13			NOUN
ajst-28818	644	14			NOUN
ajst-28818	644	15			PROPN
ajst-28818	644	16			VERB
ajst-28818	644	17			NOUN
ajst-28818	644	18			NUM
ajst-28818	644	19			PROPN
ajst-28818	644	20			NUM
ajst-28818	644	21			NUM
ajst-28818	644	22			NOUN
ajst-28818	644	23			NOUN
ajst-28818	644	24			NOUN
ajst-28818	644	25			NOUN
ajst-28818	644	26			NOUN
ajst-28818	644	27			NOUN
ajst-28818	644	28	(	(	PUNCT
ajst-28818	644	29	25	25	NUM
ajst-28818	644	30	)	)	PUNCT
ajst-28818	644	31	where	where	SCONJ
ajst-28818	644	32	sw	sw	PROPN
ajst-28818	644	33	is	be	AUX
ajst-28818	644	34	the	the	DET
ajst-28818	644	35	platform	platform	NOUN
ajst-28818	644	36	heave	heave	NOUN
ajst-28818	644	37	displacement	displacement	NOUN
ajst-28818	644	38	,	,	PUNCT
ajst-28818	644	39	ca	ca	PROPN
ajst-28818	644	40	is	be	AUX
ajst-28818	644	41	the	the	DET
ajst-28818	644	42	total	total	ADJ
ajst-28818	644	43	cross	cross	ADJ
ajst-28818	644	44	-	-	ADJ
ajst-28818	644	45	sectional	sectional	ADJ
ajst-28818	644	46	area	area	NOUN
ajst-28818	644	47	of	of	ADP
ajst-28818	644	48	compensator	compensator	NOUN
ajst-28818	644	49	cylinders	cylinder	NOUN
ajst-28818	644	50	,	,	PUNCT
ajst-28818	644	51	0p	0p	NUM
ajst-28818	644	52	is	be	AUX
ajst-28818	644	53	the	the	DET
ajst-28818	644	54	initial	initial	ADJ
ajst-28818	644	55	pressure	pressure	NOUN
ajst-28818	644	56	,	,	PUNCT
ajst-28818	644	57	0v	0v	PROPN
ajst-28818	644	58	is	be	AUX
ajst-28818	644	59	the	the	DET
ajst-28818	644	60	total	total	ADJ
ajst-28818	644	61	volume	volume	NOUN
ajst-28818	644	62	of	of	ADP
ajst-28818	644	63	compressed	compressed	ADJ
ajst-28818	644	64	air	air	NOUN
ajst-28818	644	65	in	in	ADP
ajst-28818	644	66	the	the	DET
ajst-28818	644	67	pressure	pressure	NOUN
ajst-28818	644	68	vessels	vessel	NOUN
ajst-28818	644	69	and	and	CCONJ
ajst-28818	644	70	cylinders	cylinder	NOUN
ajst-28818	644	71	,	,	PUNCT
ajst-28818	644	72	a	a	PRON
ajst-28818	644	73	is	be	AUX
ajst-28818	644	74	the	the	DET
ajst-28818	644	75	specific	specific	ADJ
ajst-28818	644	76	heat	heat	NOUN
ajst-28818	644	77	ratio	ratio	NOUN
ajst-28818	644	78	of	of	ADP
ajst-28818	644	79	air	air	NOUN
ajst-28818	644	80	,	,	PUNCT
ajst-28818	644	81	w	w	NOUN
ajst-28818	644	82			NOUN
ajst-28818	644	83	is	be	AUX
ajst-28818	644	84	the	the	DET
ajst-28818	644	85	relative	relative	ADJ
ajst-28818	644	86	velocity	velocity	NOUN
ajst-28818	644	87	between	between	ADP
ajst-28818	644	88	the	the	DET
ajst-28818	644	89	cylinder	cylinder	NOUN
ajst-28818	644	90	and	and	CCONJ
ajst-28818	644	91	piston	piston	NOUN
ajst-28818	644	92	,	,	PUNCT
ajst-28818	644	93	the	the	DET
ajst-28818	644	94	constants	constant	NOUN
ajst-28818	644	95	b	b	NOUN
ajst-28818	644	96	and	and	CCONJ
ajst-28818	644	97			NOUN
ajst-28818	644	98	are	be	AUX
ajst-28818	644	99	2860	2860	NUM
ajst-28818	644	100	and	and	CCONJ
ajst-28818	644	101	0.52	0.52	NUM
ajst-28818	644	102	,	,	PUNCT
ajst-28818	644	103	respectively	respectively	ADV
ajst-28818	644	104	,	,	PUNCT
ajst-28818	644	105	which	which	PRON
ajst-28818	644	106	are	be	AUX
ajst-28818	644	107	determined	determine	VERB
ajst-28818	644	108	experimentally	experimentally	ADV
ajst-28818	644	109	(	(	PUNCT
ajst-28818	644	110	niedzwecki	niedzwecki	NOUN
ajst-28818	644	111	and	and	CCONJ
ajst-28818	644	112	thampi	thampi	PROPN
ajst-28818	644	113	,	,	PUNCT
ajst-28818	644	114	1988	1988	NUM
ajst-28818	644	115	)	)	PUNCT
ajst-28818	644	116	.	.	PUNCT
ajst-28818	645	1	a2	a2	PROPN
ajst-28818	645	2	.	.	PUNCT
ajst-28818	646	1	hv	hv	PROPN
ajst-28818	646	2	,	,	PUNCT
ajst-28818	646	3	bv	bv	PROPN
ajst-28818	646	4	and	and	CCONJ
ajst-28818	646	5	ba	ba	PROPN
ajst-28818	646	6	the	the	DET
ajst-28818	646	7	sea	sea	NOUN
ajst-28818	646	8	current	current	NOUN
ajst-28818	646	9	is	be	AUX
ajst-28818	646	10	caused	cause	VERB
ajst-28818	646	11	by	by	ADP
ajst-28818	646	12	tidal	tidal	ADJ
ajst-28818	646	13	current	current	ADJ
ajst-28818	646	14	and	and	CCONJ
ajst-28818	646	15	sea	sea	NOUN
ajst-28818	646	16	wind	wind	NOUN
ajst-28818	646	17	.	.	PUNCT
ajst-28818	647	1	the	the	DET
ajst-28818	647	2	sea	sea	NOUN
ajst-28818	647	3	current	current	ADJ
ajst-28818	647	4	velocity	velocity	NOUN
ajst-28818	647	5	cwv	cwv	NOUN
ajst-28818	647	6	caused	cause	VERB
ajst-28818	647	7	by	by	ADP
ajst-28818	647	8	sea	sea	NOUN
ajst-28818	647	9	wind	wind	NOUN
ajst-28818	647	10	is	be	AUX
ajst-28818	647	11	proportional	proportional	ADJ
ajst-28818	647	12	to	to	ADP
ajst-28818	647	13	the	the	DET
ajst-28818	647	14	actual	actual	ADJ
ajst-28818	647	15	wind	wind	NOUN
ajst-28818	647	16	speed	speed	NOUN
ajst-28818	647	17	wv	wv	PROPN
ajst-28818	648	1	(	(	PUNCT
ajst-28818	648	2	mao	mao	X
ajst-28818	648	3	et	et	PROPN
ajst-28818	648	4	al	al	PROPN
ajst-28818	648	5	.	.	PROPN
ajst-28818	648	6	,	,	PUNCT
ajst-28818	648	7	2016	2016	NUM
ajst-28818	648	8	):	):	PUNCT
ajst-28818	649	1	=	=	NUM
ajst-28818	649	2	cw	cw	PROPN
ajst-28818	649	3	w	w	PROPN
ajst-28818	649	4	wv	wv	PROPN
ajst-28818	649	5	k	k	PROPN
ajst-28818	649	6	v	v	PROPN
ajst-28818	649	7	(	(	PUNCT
ajst-28818	649	8	26	26	NUM
ajst-28818	649	9	)	)	PUNCT
ajst-28818	649	10	where	where	SCONJ
ajst-28818	649	11	wk	wk	PRON
ajst-28818	649	12	is	be	AUX
ajst-28818	649	13	the	the	DET
ajst-28818	649	14	dimensionless	dimensionless	NOUN
ajst-28818	649	15	wind	wind	NOUN
ajst-28818	649	16	speed	speed	NOUN
ajst-28818	649	17	factor	factor	NOUN
ajst-28818	649	18	,	,	PUNCT
ajst-28818	649	19	the	the	DET
ajst-28818	649	20	general	general	ADJ
ajst-28818	649	21	value	value	NOUN
ajst-28818	649	22	range	range	NOUN
ajst-28818	649	23	is	be	AUX
ajst-28818	649	24	0.024	0.024	NUM
ajst-28818	649	25	~	~	PUNCT
ajst-28818	649	26	0.05	0.05	NUM
ajst-28818	649	27	,	,	PUNCT
ajst-28818	649	28	and	and	CCONJ
ajst-28818	649	29	in	in	ADP
ajst-28818	649	30	this	this	DET
ajst-28818	649	31	paper	paper	NOUN
ajst-28818	649	32	it	it	PRON
ajst-28818	649	33	is	be	AUX
ajst-28818	649	34	set	set	VERB
ajst-28818	649	35	to	to	ADP
ajst-28818	649	36	0.03	0.03	NUM
ajst-28818	649	37	.	.	PUNCT
ajst-28818	650	1	according	accord	VERB
ajst-28818	650	2	to	to	ADP
ajst-28818	650	3	ekman	ekman	PROPN
ajst-28818	650	4	's	's	PART
ajst-28818	650	5	drifting	drift	VERB
ajst-28818	650	6	theory	theory	NOUN
ajst-28818	650	7	,	,	PUNCT
ajst-28818	650	8	the	the	DET
ajst-28818	650	9	current	current	ADJ
ajst-28818	650	10	velocity	velocity	NOUN
ajst-28818	650	11	can	can	AUX
ajst-28818	650	12	be	be	AUX
ajst-28818	650	13	expressed	express	VERB
ajst-28818	650	14	as	as	ADP
ajst-28818	650	15	:	:	PUNCT
ajst-28818	650	16	1	1	NUM
ajst-28818	650	17	7	7	NUM
ajst-28818	650	18	1	1	NUM
ajst-28818	650	19	7	7	NUM
ajst-28818	650	20	h	h	NOUN
ajst-28818	650	21	cw	cw	NOUN
ajst-28818	651	1	d	d	NOUN
ajst-28818	651	2	h	h	NOUN
ajst-28818	652	1	d	d	NOUN
ajst-28818	652	2	m	m	NOUN
ajst-28818	652	3	z	z	NOUN
ajst-28818	652	4	h	h	NOUN
ajst-28818	652	5	z	z	NOUN
ajst-28818	652	6	v	v	PROPN
ajst-28818	652	7	v	v	NUM
ajst-28818	652	8	v	v	NOUN
ajst-28818	652	9	z	z	NOUN
ajst-28818	652	10	m	m	VERB
ajst-28818	652	11	m	m	NOUN
ajst-28818	652	12	h	h	ADJ
ajst-28818	652	13	h	h	NOUN
ajst-28818	652	14	z	z	NOUN
ajst-28818	652	15	v	v	PROPN
ajst-28818	652	16	v	v	ADP
ajst-28818	652	17	z	z	NOUN
ajst-28818	652	18	m	m	VERB
ajst-28818	652	19	h	h	NOUN
ajst-28818	652	20			ADV
ajst-28818	652	21			VERB
ajst-28818	652	22			NOUN
ajst-28818	652	23			PROPN
ajst-28818	652	24			NOUN
ajst-28818	652	25			PROPN
ajst-28818	652	26			NUM
ajst-28818	652	27			ADJ
ajst-28818	652	28			NUM
ajst-28818	653	1			PROPN
ajst-28818	654	1			PROPN
ajst-28818	654	2			SYM
ajst-28818	654	3			PROPN
ajst-28818	654	4			PROPN
ajst-28818	654	5			PROPN
ajst-28818	654	6			NOUN
ajst-28818	654	7			NUM
ajst-28818	654	8			NUM
ajst-28818	654	9			PROPN
ajst-28818	654	10			X
ajst-28818	654	11			NUM
ajst-28818	655	1			PROPN
ajst-28818	655	2			PROPN
ajst-28818	655	3			PROPN
ajst-28818	655	4			PROPN
ajst-28818	655	5	(	(	PUNCT
ajst-28818	655	6	27	27	NUM
ajst-28818	655	7	)	)	PUNCT
ajst-28818	655	8	where	where	SCONJ
ajst-28818	655	9	m	m	NOUN
ajst-28818	655	10	is	be	AUX
ajst-28818	655	11	ekman	ekman	NOUN
ajst-28818	655	12	depth	depth	NOUN
ajst-28818	655	13	which	which	PRON
ajst-28818	655	14	is	be	AUX
ajst-28818	655	15	generally	generally	ADV
ajst-28818	655	16	determined	determine	VERB
ajst-28818	655	17	from	from	ADP
ajst-28818	655	18	the	the	DET
ajst-28818	655	19	range	range	NOUN
ajst-28818	655	20	200~300	200~300	NUM
ajst-28818	655	21	m.	m.	NOUN
ajst-28818	655	22	when	when	SCONJ
ajst-28818	655	23	the	the	DET
ajst-28818	655	24	water	water	NOUN
ajst-28818	655	25	depth	depth	NOUN
ajst-28818	655	26	exceeds	exceed	VERB
ajst-28818	655	27	m	m	PRON
ajst-28818	655	28	,	,	PUNCT
ajst-28818	655	29	the	the	DET
ajst-28818	655	30	current	current	ADJ
ajst-28818	655	31	velocity	velocity	NOUN
ajst-28818	655	32	is	be	AUX
ajst-28818	655	33	considered	consider	VERB
ajst-28818	655	34	negligible	negligible	ADJ
ajst-28818	655	35	.	.	PUNCT
ajst-28818	656	1	according	accord	VERB
ajst-28818	656	2	to	to	ADP
ajst-28818	656	3	airy	airy	ADJ
ajst-28818	656	4	wave	wave	NOUN
ajst-28818	656	5	theory	theory	NOUN
ajst-28818	656	6	,	,	PUNCT
ajst-28818	656	7	the	the	DET
ajst-28818	656	8	horizontal	horizontal	ADJ
ajst-28818	656	9	velocity	velocity	NOUN
ajst-28818	656	10	and	and	CCONJ
ajst-28818	656	11	horizontal	horizontal	ADJ
ajst-28818	656	12	acceleration	acceleration	NOUN
ajst-28818	656	13	of	of	ADP
ajst-28818	656	14	water	water	NOUN
ajst-28818	656	15	point	point	NOUN
ajst-28818	656	16	velocity	velocity	NOUN
ajst-28818	656	17	can	can	AUX
ajst-28818	656	18	be	be	AUX
ajst-28818	656	19	written	write	VERB
ajst-28818	656	20	as	as	ADP
ajst-28818	656	21	respectively	respectively	ADV
ajst-28818	656	22	(	(	PUNCT
ajst-28818	656	23	wang	wang	PROPN
ajst-28818	656	24	and	and	CCONJ
ajst-28818	656	25	liang	liang	PROPN
ajst-28818	656	26	,	,	PUNCT
ajst-28818	656	27	2013	2013	NUM
ajst-28818	656	28	):	):	PUNCT
ajst-28818	656	29			PROPN
ajst-28818	656	30			SYM
ajst-28818	656	31			NOUN
ajst-28818	656	32			PUNCT
ajst-28818	656	33	2	2	NUM
ajst-28818	656	34	e	e	NOUN
ajst-28818	656	35	cos	cos	ADP
ajst-28818	656	36	2	2	NUM
ajst-28818	656	37	e	e	NOUN
ajst-28818	656	38	sin	sin	VERB
ajst-28818	656	39	2	2	NUM
ajst-28818	656	40	b	b	SYM
ajst-28818	656	41	b	b	PROPN
ajst-28818	656	42	k	k	PROPN
ajst-28818	656	43	zb	zb	PROPN
ajst-28818	656	44	b	b	PROPN
ajst-28818	656	45	b	b	X
ajst-28818	656	46	k	k	PROPN
ajst-28818	656	47	zb	zb	PROPN
ajst-28818	656	48	b	b	PROPN
ajst-28818	656	49	b	b	PROPN
ajst-28818	656	50	h	h	NOUN
ajst-28818	656	51	v	v	NOUN
ajst-28818	656	52	k	k	PROPN
ajst-28818	656	53	x	x	SYM
ajst-28818	656	54	t	t	NOUN
ajst-28818	656	55	h	h	NOUN
ajst-28818	656	56	a	a	PRON
ajst-28818	656	57	k	k	X
ajst-28818	656	58	x	x	SYM
ajst-28818	656	59	t	t	NOUN
ajst-28818	656	60			X
ajst-28818	656	61			X
ajst-28818	656	62			X
ajst-28818	656	63			X
ajst-28818	656	64			PROPN
ajst-28818	656	65			PROPN
ajst-28818	656	66			ADP
ajst-28818	656	67			PROPN
ajst-28818	656	68			PROPN
ajst-28818	657	1			NUM
ajst-28818	657	2			NUM
ajst-28818	657	3			PROPN
ajst-28818	657	4			PROPN
ajst-28818	657	5			NOUN
ajst-28818	657	6	(	(	PUNCT
ajst-28818	657	7	28	28	NUM
ajst-28818	657	8	)	)	PUNCT
ajst-28818	657	9	where	where	SCONJ
ajst-28818	657	10	bh	bh	NOUN
ajst-28818	657	11	is	be	AUX
ajst-28818	657	12	the	the	DET
ajst-28818	657	13	wave	wave	NOUN
ajst-28818	657	14	height	height	NOUN
ajst-28818	657	15	,	,	PUNCT
ajst-28818	657	16	(	(	PUNCT
ajst-28818	657	17	2	2	NUM
ajst-28818	657	18	/	/	SYM
ajst-28818	657	19	)	)	PUNCT
ajst-28818	657	20	bk	bk	PROPN
ajst-28818	657	21			PROPN
ajst-28818	657	22			PROPN
ajst-28818	657	23	is	be	AUX
ajst-28818	657	24	the	the	DET
ajst-28818	657	25	wave	wave	NOUN
ajst-28818	657	26	number	number	NOUN
ajst-28818	657	27	in	in	ADP
ajst-28818	657	28	which	which	PRON
ajst-28818	657	29			ADJ
ajst-28818	657	30	is	be	AUX
ajst-28818	657	31	the	the	DET
ajst-28818	657	32	wavelength	wavelength	NOUN
ajst-28818	657	33	,	,	PUNCT
ajst-28818	657	34	and	and	CCONJ
ajst-28818	657	35	(	(	PUNCT
ajst-28818	657	36	2	2	NUM
ajst-28818	657	37	/	/	SYM
ajst-28818	657	38	)	)	PUNCT
ajst-28818	657	39	t	t	NOUN
ajst-28818	658	1			VERB
ajst-28818	658	2	is	be	AUX
ajst-28818	658	3	the	the	DET
ajst-28818	658	4	wave	wave	NOUN
ajst-28818	658	5	circular	circular	ADJ
ajst-28818	658	6	frequency	frequency	NOUN
ajst-28818	658	7	,	,	PUNCT
ajst-28818	658	8	t	t	PROPN
ajst-28818	658	9	is	be	AUX
ajst-28818	658	10	the	the	DET
ajst-28818	658	11	wave	wave	NOUN
ajst-28818	658	12	period	period	NOUN
ajst-28818	658	13	.	.	PUNCT
ajst-28818	659	1	a3	a3	PROPN
ajst-28818	659	2	.	.	PUNCT
ajst-28818	659	3	)	)	PUNCT
ajst-28818	660	1	b	b	NUM
ajst-28818	661	1			PROPN
ajst-28818	661	2	（	（	PUNCT
ajst-28818	661	3	and	and	CCONJ
ajst-28818	661	4	bw	bw	PROPN
ajst-28818	661	5	in	in	ADP
ajst-28818	661	6	the	the	DET
ajst-28818	661	7	equation	equation	NOUN
ajst-28818	661	8	(	(	PUNCT
ajst-28818	661	9	22	22	NUM
ajst-28818	661	10	)	)	PUNCT
ajst-28818	661	11	,	,	PUNCT
ajst-28818	661	12	the	the	DET
ajst-28818	661	13	exponential	exponential	ADJ
ajst-28818	661	14	decay	decay	NOUN
ajst-28818	661	15	friction	friction	NOUN
ajst-28818	661	16	coefficient	coefficient	NOUN
ajst-28818	661	17	of	of	ADP
ajst-28818	661	18	the	the	DET
ajst-28818	661	19	drill	drill	NOUN
ajst-28818	661	20	can	can	AUX
ajst-28818	661	21	be	be	AUX
ajst-28818	661	22	determined	determine	VERB
ajst-28818	661	23	by	by	ADP
ajst-28818	661	24	the	the	DET
ajst-28818	661	25	following	follow	VERB
ajst-28818	661	26	formula	formula	NOUN
ajst-28818	661	27	(	(	PUNCT
ajst-28818	661	28	moharrami	moharrami	NOUN
ajst-28818	661	29	et	et	PROPN
ajst-28818	661	30	al	al	PROPN
ajst-28818	661	31	.	.	PROPN
ajst-28818	661	32	,	,	PUNCT
ajst-28818	661	33	2021	2021	NUM
ajst-28818	661	34	):	):	PUNCT
ajst-28818	661	35	)	)	PUNCT
ajst-28818	661	36	(	(	PUNCT
ajst-28818	661	37	)	)	PUNCT
ajst-28818	662	1	b	b	X
ajst-28818	662	2	b	b	X
ajst-28818	662	3	c	c	NOUN
ajst-28818	662	4	s	s	PROPN
ajst-28818	662	5	c	c	NOUN
ajst-28818	662	6	e	e	X
ajst-28818	662	7			NUM
ajst-28818	662	8			PUNCT
ajst-28818	662	9			NOUN
ajst-28818	662	10			NOUN
ajst-28818	662	11			NOUN
ajst-28818	662	12			NOUN
ajst-28818	662	13			NOUN
ajst-28818	662	14			PROPN
ajst-28818	662	15			ADV
ajst-28818	662	16			PROPN
ajst-28818	662	17			PROPN
ajst-28818	662	18			PROPN
ajst-28818	662	19			NOUN
ajst-28818	662	20	（	（	X
ajst-28818	662	21	(	(	PUNCT
ajst-28818	662	22	29	29	NUM
ajst-28818	662	23	)	)	PUNCT
ajst-28818	662	24	where	where	SCONJ
ajst-28818	662	25	c	c	NUM
ajst-28818	662	26	and	and	CCONJ
ajst-28818	662	27	s	s	PROPN
ajst-28818	662	28	are	be	AUX
ajst-28818	662	29	dynamic	dynamic	ADJ
ajst-28818	662	30	friction	friction	NOUN
ajst-28818	662	31	coefficient	coefficient	NOUN
ajst-28818	662	32	and	and	CCONJ
ajst-28818	662	33	static	static	ADJ
ajst-28818	662	34	friction	friction	NOUN
ajst-28818	662	35	coefficient	coefficient	NOUN
ajst-28818	662	36	respectively	respectively	ADV
ajst-28818	662	37	,	,	PUNCT
ajst-28818	662	38			PROPN
ajst-28818	662	39	is	be	AUX
ajst-28818	662	40	decay	decay	NOUN
ajst-28818	662	41	coefficients	coefficient	NOUN
ajst-28818	662	42	.	.	PUNCT
ajst-28818	663	1	according	accord	VERB
ajst-28818	663	2	to	to	ADP
ajst-28818	663	3	different	different	ADJ
ajst-28818	663	4	surfaces	surface	NOUN
ajst-28818	663	5	,	,	PUNCT
ajst-28818	663	6	the	the	DET
ajst-28818	663	7	static	static	ADJ
ajst-28818	663	8	friction	friction	NOUN
ajst-28818	663	9	coefficient	coefficient	NOUN
ajst-28818	663	10	can	can	AUX
ajst-28818	663	11	be	be	AUX
ajst-28818	663	12	greater	great	ADJ
ajst-28818	663	13	than	than	ADP
ajst-28818	663	14	1	1	NUM
ajst-28818	663	15	,	,	PUNCT
ajst-28818	663	16	and	and	CCONJ
ajst-28818	663	17	the	the	DET
ajst-28818	663	18	dynamic	dynamic	ADJ
ajst-28818	663	19	friction	friction	NOUN
ajst-28818	663	20	coefficient	coefficient	NOUN
ajst-28818	663	21	is	be	AUX
ajst-28818	663	22	selected	select	VERB
ajst-28818	663	23	in	in	ADP
ajst-28818	663	24	the	the	DET
ajst-28818	663	25	range	range	NOUN
ajst-28818	663	26	0~1	0~1	PUNCT
ajst-28818	663	27	.	.	PUNCT
ajst-28818	664	1	the	the	DET
ajst-28818	664	2	weight	weight	NOUN
ajst-28818	664	3	on	on	ADP
ajst-28818	664	4	the	the	DET
ajst-28818	664	5	drill	drill	NOUN
ajst-28818	664	6	-	-	PUNCT
ajst-28818	664	7	bit	bit	NOUN
ajst-28818	664	8	can	can	AUX
ajst-28818	664	9	be	be	AUX
ajst-28818	664	10	determined	determine	VERB
ajst-28818	664	11	by	by	ADP
ajst-28818	664	12	the	the	DET
ajst-28818	664	13	following	follow	VERB
ajst-28818	664	14	formula	formula	NOUN
ajst-28818	664	15	:	:	PUNCT
ajst-28818	665	1	0	0	NUM
ajst-28818	665	2	e	e	NOUN
ajst-28818	665	3	0	0	NUM
ajst-28818	665	4	e	e	NOUN
ajst-28818	665	5	0	0	NUM
ajst-28818	665	6	0	0	NUM
ajst-28818	665	7	e	e	NOUN
ajst-28818	665	8	0	0	NUM
ajst-28818	665	9	0	0	NUM
ajst-28818	665	10	)	)	PUNCT
ajst-28818	665	11	)	)	PUNCT
ajst-28818	665	12	0	0	X
ajst-28818	665	13	)	)	PUNCT
ajst-28818	666	1	b	b	PROPN
ajst-28818	666	2	b	b	X
ajst-28818	666	3	b	b	PROPN
ajst-28818	666	4	b	b	PROPN
ajst-28818	666	5	b	b	PROPN
ajst-28818	666	6	b	b	PROPN
ajst-28818	666	7	b	b	PROPN
ajst-28818	666	8	b	b	PROPN
ajst-28818	666	9	b	b	PROPN
ajst-28818	666	10	b	b	PROPN
ajst-28818	666	11	w	w	PROPN
ajst-28818	666	12	k	k	PROPN
ajst-28818	666	13	w	w	PROPN
ajst-28818	666	14	w	w	PROPN
ajst-28818	666	15	k	k	PROPN
ajst-28818	666	16	w	w	PROPN
ajst-28818	666	17	w	w	PROPN
ajst-28818	666	18	w	w	PROPN
ajst-28818	666	19	w	w	PROPN
ajst-28818	666	20	k	k	PROPN
ajst-28818	666	21	w	w	PROPN
ajst-28818	666	22	w	w	PROPN
ajst-28818	666	23	w	w	PROPN
ajst-28818	666	24			PROPN
ajst-28818	666	25			PROPN
ajst-28818	666	26			PROPN
ajst-28818	666	27			ADP
ajst-28818	666	28			NOUN
ajst-28818	666	29			NOUN
ajst-28818	666	30			NOUN
ajst-28818	666	31			NOUN
ajst-28818	666	32	（	（	PUNCT
ajst-28818	667	1	（	（	PUNCT
ajst-28818	667	2	（	（	PUNCT
ajst-28818	667	3	(	(	PUNCT
ajst-28818	667	4	30	30	NUM
ajst-28818	667	5	)	)	PUNCT
ajst-28818	667	6	where	where	SCONJ
ajst-28818	667	7	0bw	0bw	NOUN
ajst-28818	667	8	is	be	AUX
ajst-28818	667	9	the	the	DET
ajst-28818	667	10	initial	initial	ADJ
ajst-28818	667	11	static	static	ADJ
ajst-28818	667	12	weight	weight	NOUN
ajst-28818	667	13	on	on	ADP
ajst-28818	667	14	bit	bit	NOUN
ajst-28818	667	15	,	,	PUNCT
ajst-28818	667	16	bw	bw	PROPN
ajst-28818	667	17	is	be	AUX
ajst-28818	667	18	the	the	DET
ajst-28818	667	19	longitudinal	longitudinal	ADJ
ajst-28818	667	20	displacement	displacement	NOUN
ajst-28818	667	21	of	of	ADP
ajst-28818	667	22	the	the	DET
ajst-28818	667	23	bit	bit	NOUN
ajst-28818	667	24	,	,	PUNCT
ajst-28818	667	25	0bw	0bw	NOUN
ajst-28818	667	26	is	be	AUX
ajst-28818	667	27	the	the	DET
ajst-28818	667	28	initial	initial	ADJ
ajst-28818	667	29	longitudinal	longitudinal	ADJ
ajst-28818	667	30	displacement	displacement	NOUN
ajst-28818	667	31	of	of	ADP
ajst-28818	667	32	the	the	DET
ajst-28818	667	33	bit	bit	NOUN
ajst-28818	667	34	,	,	PUNCT
ajst-28818	667	35	and	and	CCONJ
ajst-28818	667	36	ek	ek	PROPN
ajst-28818	667	37	is	be	AUX
ajst-28818	667	38	the	the	DET
ajst-28818	667	39	contact	contact	NOUN
ajst-28818	667	40	stiffness	stiffness	NOUN
ajst-28818	667	41	of	of	ADP
ajst-28818	667	42	the	the	DET
ajst-28818	667	43	bit	bit	NOUN
ajst-28818	667	44	-	-	PUNCT
ajst-28818	667	45	rock	rock	NOUN
ajst-28818	667	46	.	.	PUNCT
ajst-28818	668	1	in	in	ADP
ajst-28818	668	2	this	this	DET
ajst-28818	668	3	paper	paper	NOUN
ajst-28818	668	4	,	,	PUNCT
ajst-28818	668	5	according	accord	VERB
ajst-28818	668	6	to	to	ADP
ajst-28818	668	7	the	the	DET
ajst-28818	668	8	test	test	NOUN
ajst-28818	668	9	data	datum	NOUN
ajst-28818	668	10	of	of	ADP
ajst-28818	668	11	the	the	DET
ajst-28818	668	12	bit	bit	NOUN
ajst-28818	668	13	-	-	PUNCT
ajst-28818	668	14	rock	rock	NOUN
ajst-28818	668	15	contact	contact	NOUN
ajst-28818	668	16	stiffness	stiffness	NOUN
ajst-28818	668	17	presented	present	VERB
ajst-28818	668	18	in	in	ADP
ajst-28818	668	19	document	document	NOUN
ajst-28818	668	20	(	(	PUNCT
ajst-28818	668	21	liao	liao	NOUN
ajst-28818	668	22	,	,	PUNCT
ajst-28818	668	23	2020	2020	NUM
ajst-28818	668	24	)	)	PUNCT
ajst-28818	668	25	,	,	PUNCT
ajst-28818	668	26	ek	ek	PROPN
ajst-28818	668	27	is	be	AUX
ajst-28818	668	28	taken	take	VERB
ajst-28818	668	29	as	as	ADP
ajst-28818	668	30	20	20	NUM
ajst-28818	668	31	kn	kn	PROPN
ajst-28818	668	32	/	/	SYM
ajst-28818	668	33	mm	mm	PROPN
ajst-28818	668	34	.	.	PROPN
ajst-28818	669	1	308	308	NUM
ajst-28818	669	2	references	reference	NOUN
ajst-28818	669	3	[	[	X
ajst-28818	669	4	1	1	NUM
ajst-28818	669	5	]	]	X
ajst-28818	669	6	liu	liu	PROPN
ajst-28818	669	7	,	,	PUNCT
ajst-28818	669	8	j.	j.	PROPN
ajst-28818	669	9	,	,	PUNCT
ajst-28818	669	10	liang	liang	PROPN
ajst-28818	669	11	,	,	PUNCT
ajst-28818	669	12	s.	s.	PROPN
ajst-28818	669	13	,	,	PUNCT
ajst-28818	669	14	chen	chen	PROPN
ajst-28818	669	15	,	,	PUNCT
ajst-28818	669	16	y.	y.	PROPN
ajst-28818	669	17	,	,	PUNCT
ajst-28818	669	18	&	&	CCONJ
ajst-28818	669	19	zhang	zhang	PROPN
ajst-28818	669	20	,	,	PUNCT
ajst-28818	669	21	m.	m.	NOUN
ajst-28818	669	22	(	(	PUNCT
ajst-28818	669	23	2023	2023	NUM
ajst-28818	669	24	)	)	PUNCT
ajst-28818	669	25	.	.	PUNCT
ajst-28818	670	1	axial	axial	ADJ
ajst-28818	670	2	-	-	PUNCT
ajst-28818	670	3	lateraltorsional	lateraltorsional	ADJ
ajst-28818	670	4	coupling	coupling	NOUN
ajst-28818	670	5	nonlinear	nonlinear	ADJ
ajst-28818	670	6	vibration	vibration	NOUN
ajst-28818	670	7	of	of	ADP
ajst-28818	670	8	riserless	riserless	NOUN
ajst-28818	670	9	drill	drill	NOUN
ajst-28818	670	10	-	-	PUNCT
ajst-28818	670	11	string	string	NOUN
ajst-28818	670	12	considering	consider	VERB
ajst-28818	670	13	both	both	CCONJ
ajst-28818	670	14	seawater	seawater	NOUN
ajst-28818	670	15	and	and	CCONJ
ajst-28818	670	16	stratum	stratum	NOUN
ajst-28818	670	17	parts	part	NOUN
ajst-28818	670	18	.	.	PUNCT
ajst-28818	671	1	applied	apply	VERB
ajst-28818	671	2	ocean	ocean	PROPN
ajst-28818	671	3	research	research	NOUN
ajst-28818	671	4	,	,	PUNCT
ajst-28818	671	5	140	140	NUM
ajst-28818	671	6	,	,	PUNCT
ajst-28818	671	7	103742	103742	NUM
ajst-28818	671	8	.	.	PUNCT
ajst-28818	672	1	[	[	X
ajst-28818	672	2	2	2	NUM
ajst-28818	672	3	]	]	X
ajst-28818	672	4	baumart	baumart	NOUN
ajst-28818	672	5	,	,	PUNCT
ajst-28818	672	6	a.	a.	NOUN
ajst-28818	672	7	,	,	PUNCT
ajst-28818	672	8	2000	2000	NUM
ajst-28818	672	9	.	.	PUNCT
ajst-28818	672	10	stick	stick	NOUN
ajst-28818	672	11	-	-	PUNCT
ajst-28818	672	12	slip	slip	NOUN
ajst-28818	672	13	and	and	CCONJ
ajst-28818	672	14	bit	bit	NOUN
ajst-28818	672	15	-	-	PUNCT
ajst-28818	672	16	bounce	bounce	NOUN
ajst-28818	672	17	of	of	ADP
ajst-28818	672	18	deep	deep	ADJ
ajst-28818	672	19	-	-	PUNCT
ajst-28818	672	20	hole	hole	NOUN
ajst-28818	672	21	drillstrings	drillstring	NOUN
ajst-28818	672	22	.	.	PUNCT
ajst-28818	673	1	journal	journal	PROPN
ajst-28818	673	2	of	of	ADP
ajst-28818	673	3	energy	energy	NOUN
ajst-28818	673	4	resources	resource	NOUN
ajst-28818	673	5	technology	technology	NOUN
ajst-28818	673	6	122(2	122(2	NUM
ajst-28818	673	7	)	)	PUNCT
ajst-28818	673	8	,	,	PUNCT
ajst-28818	673	9	78	78	NUM
ajst-28818	673	10	-	-	SYM
ajst-28818	673	11	82	82	NUM
ajst-28818	673	12	.	.	PUNCT
ajst-28818	674	1	[	[	X
ajst-28818	674	2	3	3	NUM
ajst-28818	674	3	]	]	X
ajst-28818	674	4	christoforou	christoforou	PROPN
ajst-28818	674	5	,	,	PUNCT
ajst-28818	674	6	a.p	a.p	PROPN
ajst-28818	674	7	.	.	PROPN
ajst-28818	674	8	,	,	PUNCT
ajst-28818	674	9	yigit	yigit	PROPN
ajst-28818	674	10	,	,	PUNCT
ajst-28818	674	11	a.s	a.s	PROPN
ajst-28818	674	12	.	.	PROPN
ajst-28818	674	13	,	,	PUNCT
ajst-28818	674	14	1997	1997	NUM
ajst-28818	674	15	.	.	PUNCT
ajst-28818	675	1	dynamic	dynamic	ADJ
ajst-28818	675	2	modelling	modelling	NOUN
ajst-28818	675	3	of	of	ADP
ajst-28818	675	4	rotating	rotate	VERB
ajst-28818	675	5	drill	drill	NOUN
ajst-28818	675	6	-	-	PUNCT
ajst-28818	675	7	string	string	NOUN
ajst-28818	675	8	with	with	ADP
ajst-28818	675	9	borehole	borehole	NOUN
ajst-28818	675	10	interactions	interaction	NOUN
ajst-28818	675	11	.	.	PUNCT
ajst-28818	676	1	journal	journal	NOUN
ajst-28818	676	2	of	of	ADP
ajst-28818	676	3	sound	sound	NOUN
ajst-28818	676	4	and	and	CCONJ
ajst-28818	676	5	vibration	vibration	NOUN
ajst-28818	676	6	206(2	206(2	NUM
ajst-28818	676	7	)	)	PUNCT
ajst-28818	676	8	,	,	PUNCT
ajst-28818	676	9	243	243	NUM
ajst-28818	676	10	-	-	SYM
ajst-28818	676	11	260	260	NUM
ajst-28818	676	12	.	.	PUNCT
ajst-28818	677	1	[	[	X
ajst-28818	677	2	4	4	NUM
ajst-28818	677	3	]	]	X
ajst-28818	677	4	cai	cai	X
ajst-28818	677	5	,	,	PUNCT
ajst-28818	677	6	m.j	m.j	PROPN
ajst-28818	677	7	.	.	PROPN
ajst-28818	677	8	,	,	PUNCT
ajst-28818	677	9	mao	mao	PROPN
ajst-28818	677	10	,	,	PUNCT
ajst-28818	677	11	l.j	l.j	PROPN
ajst-28818	677	12	.	.	PROPN
ajst-28818	677	13	,	,	PUNCT
ajst-28818	677	14	xing	xing	PROPN
ajst-28818	677	15	,	,	PUNCT
ajst-28818	677	16	x.s	x.s	PROPN
ajst-28818	677	17	.	.	PROPN
ajst-28818	677	18	,	,	PUNCT
ajst-28818	677	19	zhang	zhang	PROPN
ajst-28818	677	20	,	,	PUNCT
ajst-28818	677	21	h.z	h.z	PROPN
ajst-28818	677	22	.	.	PROPN
ajst-28818	677	23	,	,	PUNCT
ajst-28818	677	24	li	li	PROPN
ajst-28818	677	25	,	,	PUNCT
ajst-28818	677	26	j.	j.	PROPN
ajst-28818	677	27	,	,	PUNCT
ajst-28818	677	28	2022	2022	NUM
ajst-28818	677	29	.	.	PUNCT
ajst-28818	678	1	analysis	analysis	NOUN
ajst-28818	678	2	on	on	ADP
ajst-28818	678	3	the	the	DET
ajst-28818	678	4	nonlinear	nonlinear	ADJ
ajst-28818	678	5	lateral	lateral	ADJ
ajst-28818	678	6	vibration	vibration	NOUN
ajst-28818	678	7	of	of	ADP
ajst-28818	678	8	drillstring	drillstre	VERB
ajst-28818	678	9	in	in	ADP
ajst-28818	678	10	curved	curved	ADJ
ajst-28818	678	11	wells	well	NOUN
ajst-28818	678	12	with	with	ADP
ajst-28818	678	13	beam	beam	PROPN
ajst-28818	678	14	finite	finite	PROPN
ajst-28818	678	15	element	element	NOUN
ajst-28818	678	16	.	.	PUNCT
ajst-28818	679	1	communications	communication	NOUN
ajst-28818	679	2	in	in	ADP
ajst-28818	679	3	nonlinear	nonlinear	PROPN
ajst-28818	679	4	science	science	PROPN
ajst-28818	679	5	&	&	CCONJ
ajst-28818	679	6	numerical	numerical	PROPN
ajst-28818	679	7	simulation	simulation	PROPN
ajst-28818	679	8	104	104	NUM
ajst-28818	679	9	,	,	PUNCT
ajst-28818	679	10	106065	106065	NUM
ajst-28818	679	11	.	.	PUNCT
ajst-28818	680	1	[	[	X
ajst-28818	680	2	5	5	NUM
ajst-28818	680	3	]	]	X
ajst-28818	680	4	de	de	X
ajst-28818	680	5	moraes	moraes	PROPN
ajst-28818	680	6	,	,	PUNCT
ajst-28818	680	7	l.p.p	l.p.p	INTJ
ajst-28818	680	8	.	.	PUNCT
ajst-28818	680	9	,	,	PUNCT
ajst-28818	680	10	savi	savi	VERB
ajst-28818	680	11	,	,	PUNCT
ajst-28818	680	12	m.a	m.a	PROPN
ajst-28818	680	13	.	.	PROPN
ajst-28818	680	14	,	,	PUNCT
ajst-28818	680	15	2019	2019	NUM
ajst-28818	680	16	.	.	PUNCT
ajst-28818	681	1	drill	drill	NOUN
ajst-28818	681	2	-	-	PUNCT
ajst-28818	681	3	string	string	NOUN
ajst-28818	681	4	vibration	vibration	NOUN
ajst-28818	681	5	analysis	analysis	NOUN
ajst-28818	681	6	considering	consider	VERB
ajst-28818	681	7	an	an	DET
ajst-28818	681	8	axial	axial	ADJ
ajst-28818	681	9	-	-	PUNCT
ajst-28818	681	10	torsional	torsional	ADJ
ajst-28818	681	11	-	-	PUNCT
ajst-28818	681	12	lateral	lateral	ADJ
ajst-28818	681	13	nonsmooth	nonsmooth	NOUN
ajst-28818	681	14	model	model	NOUN
ajst-28818	681	15	.	.	PUNCT
ajst-28818	682	1	journal	journal	PROPN
ajst-28818	682	2	of	of	ADP
ajst-28818	682	3	sound	sound	NOUN
ajst-28818	682	4	and	and	CCONJ
ajst-28818	682	5	vibration	vibration	NOUN
ajst-28818	682	6	438	438	NUM
ajst-28818	682	7	,	,	PUNCT
ajst-28818	682	8	220	220	NUM
ajst-28818	682	9	-	-	SYM
ajst-28818	682	10	237	237	NUM
ajst-28818	682	11	.	.	PUNCT
ajst-28818	683	1	[	[	X
ajst-28818	683	2	6	6	NUM
ajst-28818	683	3	]	]	X
ajst-28818	683	4	dykstra	dykstra	PROPN
ajst-28818	683	5	,	,	PUNCT
ajst-28818	683	6	m.w	m.w	PROPN
ajst-28818	683	7	.	.	PROPN
ajst-28818	683	8	,	,	PUNCT
ajst-28818	683	9	1996	1996	NUM
ajst-28818	683	10	.	.	PUNCT
ajst-28818	684	1	nonlinear	nonlinear	ADJ
ajst-28818	684	2	drill	drill	NOUN
ajst-28818	684	3	string	string	NOUN
ajst-28818	684	4	dynamics	dynamic	NOUN
ajst-28818	684	5	.	.	PUNCT
ajst-28818	685	1	the	the	DET
ajst-28818	685	2	university	university	PROPN
ajst-28818	685	3	of	of	ADP
ajst-28818	685	4	tulsa	tulsa	PROPN
ajst-28818	685	5	.	.	PUNCT
ajst-28818	686	1	[	[	X
ajst-28818	686	2	7	7	X
ajst-28818	686	3	]	]	X
ajst-28818	686	4	ghasemloonia	ghasemloonia	NOUN
ajst-28818	686	5	,	,	PUNCT
ajst-28818	686	6	a.	a.	PROPN
ajst-28818	686	7	,	,	PUNCT
ajst-28818	686	8	geoff	geoff	PROPN
ajst-28818	686	9	rideout	rideout	PROPN
ajst-28818	686	10	,	,	PUNCT
ajst-28818	686	11	d.	d.	PROPN
ajst-28818	686	12	,	,	PUNCT
ajst-28818	686	13	butt	butt	PROPN
ajst-28818	686	14	,	,	PUNCT
ajst-28818	686	15	s.d	s.d	PROPN
ajst-28818	686	16	.	.	PROPN
ajst-28818	686	17	,	,	PUNCT
ajst-28818	686	18	2015	2015	NUM
ajst-28818	686	19	.	.	PUNCT
ajst-28818	687	1	a	a	DET
ajst-28818	687	2	review	review	NOUN
ajst-28818	687	3	of	of	ADP
ajst-28818	687	4	drillstring	drillstre	VERB
ajst-28818	687	5	vibration	vibration	NOUN
ajst-28818	687	6	modeling	modeling	NOUN
ajst-28818	687	7	and	and	CCONJ
ajst-28818	687	8	suppression	suppression	NOUN
ajst-28818	687	9	methods	method	NOUN
ajst-28818	687	10	.	.	PUNCT
ajst-28818	688	1	journal	journal	PROPN
ajst-28818	688	2	of	of	ADP
ajst-28818	688	3	petroleum	petroleum	NOUN
ajst-28818	688	4	science	science	NOUN
ajst-28818	688	5	and	and	CCONJ
ajst-28818	688	6	engineering	engineering	NOUN
ajst-28818	688	7	131	131	NUM
ajst-28818	688	8	,	,	PUNCT
ajst-28818	688	9	150	150	NUM
ajst-28818	688	10	-	-	SYM
ajst-28818	688	11	164	164	NUM
ajst-28818	688	12	.	.	PUNCT
ajst-28818	689	1	[	[	X
ajst-28818	689	2	8	8	NUM
ajst-28818	689	3	]	]	X
ajst-28818	689	4	guzek	guzek	PROPN
ajst-28818	689	5	,	,	PUNCT
ajst-28818	689	6	a.	a.	NOUN
ajst-28818	689	7	,	,	PUNCT
ajst-28818	689	8	shufrin	shufrin	PROPN
ajst-28818	689	9	,	,	PUNCT
ajst-28818	689	10	i.	i.	PROPN
ajst-28818	689	11	,	,	PUNCT
ajst-28818	689	12	pasternak	pasternak	PROPN
ajst-28818	689	13	,	,	PUNCT
ajst-28818	689	14	e.	e.	PROPN
ajst-28818	689	15	,	,	PUNCT
ajst-28818	689	16	dyskin	dyskin	PROPN
ajst-28818	689	17	,	,	PUNCT
ajst-28818	689	18	a.v	a.v	PROPN
ajst-28818	689	19	.	.	PROPN
ajst-28818	689	20	,	,	PUNCT
ajst-28818	689	21	2015	2015	NUM
ajst-28818	689	22	.	.	PUNCT
ajst-28818	690	1	influence	influence	NOUN
ajst-28818	690	2	of	of	ADP
ajst-28818	690	3	drilling	drill	VERB
ajst-28818	690	4	mud	mud	NOUN
ajst-28818	690	5	rheology	rheology	NOUN
ajst-28818	690	6	on	on	ADP
ajst-28818	690	7	the	the	DET
ajst-28818	690	8	reduction	reduction	NOUN
ajst-28818	690	9	of	of	ADP
ajst-28818	690	10	vertical	vertical	ADJ
ajst-28818	690	11	vibrations	vibration	NOUN
ajst-28818	690	12	in	in	ADP
ajst-28818	690	13	deep	deep	ADJ
ajst-28818	690	14	rotary	rotary	ADJ
ajst-28818	690	15	drilling	drilling	NOUN
ajst-28818	690	16	.	.	PUNCT
ajst-28818	691	1	journal	journal	PROPN
ajst-28818	691	2	of	of	ADP
ajst-28818	691	3	petroleum	petroleum	NOUN
ajst-28818	691	4	science	science	NOUN
ajst-28818	691	5	and	and	CCONJ
ajst-28818	691	6	engineering	engineering	NOUN
ajst-28818	691	7	135	135	NUM
ajst-28818	691	8	,	,	PUNCT
ajst-28818	691	9	375	375	NUM
ajst-28818	691	10	-	-	SYM
ajst-28818	691	11	383	383	NUM
ajst-28818	691	12	.	.	PUNCT
ajst-28818	692	1	[	[	X
ajst-28818	692	2	9	9	NUM
ajst-28818	692	3	]	]	SYM
ajst-28818	692	4	kyllingstad	kyllingstad	PROPN
ajst-28818	692	5	,	,	PUNCT
ajst-28818	692	6	a.	a.	NOUN
ajst-28818	692	7	,	,	PUNCT
ajst-28818	692	8	nessjøen	nessjøen	VERB
ajst-28818	692	9	p.j	p.j	PROPN
ajst-28818	692	10	.	.	PROPN
ajst-28818	692	11	,	,	PUNCT
ajst-28818	692	12	2009	2009	NUM
ajst-28818	692	13	.	.	PUNCT
ajst-28818	693	1	a	a	DET
ajst-28818	693	2	new	new	ADJ
ajst-28818	693	3	stick	stick	NOUN
ajst-28818	693	4	-	-	PUNCT
ajst-28818	693	5	slip	slip	NOUN
ajst-28818	693	6	prevention	prevention	NOUN
ajst-28818	693	7	system	system	NOUN
ajst-28818	693	8	.	.	PUNCT
ajst-28818	694	1	society	society	NOUN
ajst-28818	694	2	of	of	ADP
ajst-28818	694	3	petroleum	petroleum	NOUN
ajst-28818	694	4	engineers	engineer	NOUN
ajst-28818	694	5	.	.	PUNCT
ajst-28818	695	1	[	[	X
ajst-28818	695	2	10	10	NUM
ajst-28818	695	3	]	]	X
ajst-28818	695	4	kessai	kessai	PROPN
ajst-28818	695	5	,	,	PUNCT
ajst-28818	695	6	i.	i.	PROPN
ajst-28818	695	7	,	,	PUNCT
ajst-28818	695	8	benammar	benammar	PROPN
ajst-28818	695	9	,	,	PUNCT
ajst-28818	695	10	s.	s.	PROPN
ajst-28818	695	11	,	,	PUNCT
ajst-28818	695	12	doghmane	doghmane	NOUN
ajst-28818	695	13	,	,	PUNCT
ajst-28818	695	14	m.z	m.z	PROPN
ajst-28818	695	15	.	.	PROPN
ajst-28818	695	16	,	,	PUNCT
ajst-28818	695	17	2022	2022	NUM
ajst-28818	695	18	.	.	PUNCT
ajst-28818	695	19	dynamic	dynamic	ADJ
ajst-28818	695	20	failure	failure	NOUN
ajst-28818	695	21	analysis	analysis	NOUN
ajst-28818	695	22	and	and	CCONJ
ajst-28818	695	23	lifetime	lifetime	NOUN
ajst-28818	695	24	estimation	estimation	NOUN
ajst-28818	695	25	of	of	ADP
ajst-28818	695	26	tool	tool	NOUN
ajst-28818	695	27	-	-	PUNCT
ajst-28818	695	28	string	string	NOUN
ajst-28818	695	29	in	in	ADP
ajst-28818	695	30	rotary	rotary	ADJ
ajst-28818	695	31	drilling	drilling	NOUN
ajst-28818	695	32	system	system	NOUN
ajst-28818	695	33	under	under	ADP
ajst-28818	695	34	torsional	torsional	ADJ
ajst-28818	695	35	-	-	PUNCT
ajst-28818	695	36	axial	axial	ADJ
ajst-28818	695	37	coupled	couple	VERB
ajst-28818	695	38	vibrations	vibration	NOUN
ajst-28818	695	39	.	.	PUNCT
ajst-28818	696	1	engineering	engineering	NOUN
ajst-28818	696	2	failure	failure	NOUN
ajst-28818	696	3	analysis	analysis	NOUN
ajst-28818	696	4	134	134	NUM
ajst-28818	696	5	,	,	PUNCT
ajst-28818	696	6	106037	106037	NUM
ajst-28818	696	7	.	.	PUNCT
ajst-28818	697	1	[	[	X
ajst-28818	697	2	11	11	NUM
ajst-28818	697	3	]	]	SYM
ajst-28818	697	4	khoshroo	khoshroo	NOUN
ajst-28818	697	5	,	,	PUNCT
ajst-28818	697	6	m.	m.	NOUN
ajst-28818	697	7	,	,	PUNCT
ajst-28818	697	8	eftekhari	eftekhari	PROPN
ajst-28818	697	9	,	,	PUNCT
ajst-28818	697	10	m.	m.	NOUN
ajst-28818	697	11	,	,	PUNCT
ajst-28818	697	12	2022	2022	NUM
ajst-28818	697	13	.	.	PUNCT
ajst-28818	698	1	nonlinear	nonlinear	ADJ
ajst-28818	698	2	dynamics	dynamic	NOUN
ajst-28818	698	3	of	of	ADP
ajst-28818	698	4	drill	drill	NOUN
ajst-28818	698	5	-	-	PUNCT
ajst-28818	698	6	string	string	NOUN
ajst-28818	698	7	in	in	ADP
ajst-28818	698	8	horizontal	horizontal	ADJ
ajst-28818	698	9	well	well	ADV
ajst-28818	698	10	under	under	ADP
ajst-28818	698	11	axial	axial	ADJ
ajst-28818	698	12	load	load	NOUN
ajst-28818	698	13	and	and	CCONJ
ajst-28818	698	14	supercritical	supercritical	ADJ
ajst-28818	698	15	regime	regime	NOUN
ajst-28818	698	16	of	of	ADP
ajst-28818	698	17	flowing	flow	VERB
ajst-28818	698	18	fluid	fluid	NOUN
ajst-28818	698	19	.	.	PUNCT
ajst-28818	699	1	international	international	ADJ
ajst-28818	699	2	journal	journal	PROPN
ajst-28818	699	3	of	of	ADP
ajst-28818	699	4	non	non	ADJ
ajst-28818	699	5	-	-	ADJ
ajst-28818	699	6	linear	linear	ADJ
ajst-28818	699	7	mechanics	mechanic	NOUN
ajst-28818	699	8	138	138	NUM
ajst-28818	699	9	,	,	PUNCT
ajst-28818	699	10	103861	103861	NUM
ajst-28818	699	11	.	.	PUNCT
ajst-28818	700	1	[	[	X
ajst-28818	700	2	12	12	NUM
ajst-28818	700	3	]	]	SYM
ajst-28818	700	4	li	li	PROPN
ajst-28818	700	5	,	,	PUNCT
ajst-28818	700	6	z.f	z.f	PROPN
ajst-28818	700	7	.	.	PROPN
ajst-28818	700	8	,	,	PUNCT
ajst-28818	700	9	zhang	zhang	PROPN
ajst-28818	700	10	c.y	c.y	PROPN
ajst-28818	700	11	.	.	PROPN
ajst-28818	700	12	,	,	PUNCT
ajst-28818	700	13	song	song	PROPN
ajst-28818	700	14	,	,	PUNCT
ajst-28818	700	15	g.m	g.m	PROPN
ajst-28818	700	16	.	.	PROPN
ajst-28818	700	17	,	,	PUNCT
ajst-28818	700	18	2017	2017	NUM
ajst-28818	700	19	.	.	PUNCT
ajst-28818	700	20	research	research	NOUN
ajst-28818	700	21	advances	advance	NOUN
ajst-28818	700	22	and	and	CCONJ
ajst-28818	700	23	debates	debate	NOUN
ajst-28818	700	24	on	on	ADP
ajst-28818	700	25	tubular	tubular	ADJ
ajst-28818	700	26	mechanics	mechanic	NOUN
ajst-28818	700	27	in	in	ADP
ajst-28818	700	28	oil	oil	NOUN
ajst-28818	700	29	and	and	CCONJ
ajst-28818	700	30	gas	gas	NOUN
ajst-28818	700	31	wells	well	NOUN
ajst-28818	700	32	.	.	PUNCT
ajst-28818	701	1	journal	journal	PROPN
ajst-28818	701	2	of	of	ADP
ajst-28818	701	3	petroleum	petroleum	NOUN
ajst-28818	701	4	science	science	NOUN
ajst-28818	701	5	and	and	CCONJ
ajst-28818	701	6	engineering	engineering	NOUN
ajst-28818	701	7	15	15	NUM
ajst-28818	701	8	,	,	PUNCT
ajst-28818	701	9	194	194	NUM
ajst-28818	701	10	-	-	SYM
ajst-28818	701	11	212	212	NUM
ajst-28818	701	12	.	.	PUNCT
ajst-28818	702	1	[	[	X
ajst-28818	702	2	13	13	NUM
ajst-28818	702	3	]	]	X
ajst-28818	702	4	liu	liu	PROPN
ajst-28818	702	5	,	,	PUNCT
ajst-28818	702	6	y.s	y.s	PROPN
ajst-28818	702	7	.	.	PROPN
ajst-28818	702	8	,	,	PUNCT
ajst-28818	702	9	gao	gao	PROPN
ajst-28818	702	10	,	,	PUNCT
ajst-28818	702	11	d.l	d.l	PROPN
ajst-28818	702	12	.	.	PROPN
ajst-28818	702	13	,	,	PUNCT
ajst-28818	702	14	2017	2017	NUM
ajst-28818	702	15	.	.	PUNCT
ajst-28818	703	1	a	a	DET
ajst-28818	703	2	nonlinear	nonlinear	ADJ
ajst-28818	703	3	dynamic	dynamic	ADJ
ajst-28818	703	4	model	model	NOUN
ajst-28818	703	5	for	for	ADP
ajst-28818	703	6	characterizing	characterize	VERB
ajst-28818	703	7	downhole	downhole	NOUN
ajst-28818	703	8	motions	motion	NOUN
ajst-28818	703	9	of	of	ADP
ajst-28818	703	10	drill	drill	NOUN
ajst-28818	703	11	-	-	PUNCT
ajst-28818	703	12	string	string	NOUN
ajst-28818	703	13	in	in	ADP
ajst-28818	703	14	a	a	DET
ajst-28818	703	15	deviated	deviated	ADJ
ajst-28818	703	16	well	well	NOUN
ajst-28818	703	17	.	.	PUNCT
ajst-28818	704	1	journal	journal	NOUN
ajst-28818	704	2	of	of	ADP
ajst-28818	704	3	natural	natural	ADJ
ajst-28818	704	4	gas	gas	NOUN
ajst-28818	704	5	science	science	NOUN
ajst-28818	704	6	and	and	CCONJ
ajst-28818	704	7	engineering	engineering	NOUN
ajst-28818	704	8	38	38	NUM
ajst-28818	704	9	,	,	PUNCT
ajst-28818	704	10	466474	466474	NUM
ajst-28818	704	11	.	.	PUNCT
ajst-28818	705	1	[	[	X
ajst-28818	705	2	14	14	NUM
ajst-28818	705	3	]	]	X
ajst-28818	705	4	liu	liu	PROPN
ajst-28818	705	5	,	,	PUNCT
ajst-28818	705	6	j.	j.	PROPN
ajst-28818	705	7	,	,	PUNCT
ajst-28818	705	8	wang	wang	PROPN
ajst-28818	705	9	,	,	PUNCT
ajst-28818	705	10	j.x	j.x	PROPN
ajst-28818	705	11	.	.	PROPN
ajst-28818	705	12	,	,	PUNCT
ajst-28818	705	13	guo	guo	PROPN
ajst-28818	705	14	,	,	PUNCT
ajst-28818	705	15	x.q	x.q	PROPN
ajst-28818	705	16	.	.	PROPN
ajst-28818	705	17	,	,	PUNCT
ajst-28818	705	18	dai	dai	PROPN
ajst-28818	705	19	,	,	PUNCT
ajst-28818	705	20	l.m	l.m	PROPN
ajst-28818	705	21	.	.	PROPN
ajst-28818	705	22	,	,	PUNCT
ajst-28818	705	23	zhang	zhang	PROPN
ajst-28818	705	24	c.	c.	PROPN
ajst-28818	705	25	,	,	PUNCT
ajst-28818	705	26	zhu	zhu	PROPN
ajst-28818	705	27	,	,	PUNCT
ajst-28818	705	28	h.	h.	PROPN
ajst-28818	705	29	,	,	PUNCT
ajst-28818	705	30	2022	2022	NUM
ajst-28818	705	31	.	.	PUNCT
ajst-28818	706	1	investigation	investigation	NOUN
ajst-28818	706	2	on	on	ADP
ajst-28818	706	3	axial	axial	ADJ
ajst-28818	706	4	-	-	PUNCT
ajst-28818	706	5	lateraltorsion	lateraltorsion	NOUN
ajst-28818	706	6	nonlinear	nonlinear	ADJ
ajst-28818	706	7	coupling	coupling	NOUN
ajst-28818	706	8	vibration	vibration	NOUN
ajst-28818	706	9	model	model	NOUN
ajst-28818	706	10	and	and	CCONJ
ajst-28818	706	11	stick	stick	NOUN
ajst-28818	706	12	-	-	PUNCT
ajst-28818	706	13	slip	slip	NOUN
ajst-28818	706	14	characteristics	characteristic	NOUN
ajst-28818	706	15	of	of	ADP
ajst-28818	706	16	drilling	drilling	NOUN
ajst-28818	706	17	string	string	NOUN
ajst-28818	706	18	in	in	ADP
ajst-28818	706	19	ultra	ultra	ADJ
ajst-28818	706	20	-	-	ADJ
ajst-28818	706	21	hpht	hpht	ADJ
ajst-28818	706	22	curved	curved	ADJ
ajst-28818	706	23	wells	wells	PROPN
ajst-28818	706	24	.	.	PUNCT
ajst-28818	707	1	applied	apply	VERB
ajst-28818	707	2	mathematical	mathematical	ADJ
ajst-28818	707	3	modelling	model	VERB
ajst-28818	707	4	107	107	NUM
ajst-28818	707	5	,	,	PUNCT
ajst-28818	707	6	182	182	NUM
ajst-28818	707	7	-	-	SYM
ajst-28818	707	8	206	206	NUM
ajst-28818	707	9	.	.	PUNCT
ajst-28818	708	1	[	[	X
ajst-28818	708	2	15	15	NUM
ajst-28818	708	3	]	]	X
ajst-28818	708	4	li	li	PROPN
ajst-28818	708	5	,	,	PUNCT
ajst-28818	708	6	w.	w.	PROPN
ajst-28818	708	7	,	,	PUNCT
ajst-28818	708	8	huang	huang	PROPN
ajst-28818	708	9	,	,	PUNCT
ajst-28818	708	10	h.l	h.l	PROPN
ajst-28818	708	11	.	.	PROPN
ajst-28818	708	12	,	,	PUNCT
ajst-28818	708	13	yu	yu	PROPN
ajst-28818	708	14	,	,	PUNCT
ajst-28818	708	15	f.	f.	PROPN
ajst-28818	708	16	,	,	PUNCT
ajst-28818	708	17	ni	ni	PROPN
ajst-28818	708	18	,	,	PUNCT
ajst-28818	708	19	h.j	h.j	PROPN
ajst-28818	708	20	.	.	PROPN
ajst-28818	708	21	,	,	PUNCT
ajst-28818	708	22	jiang	jiang	PROPN
ajst-28818	708	23	,	,	PUNCT
ajst-28818	708	24	w.	w.	PROPN
ajst-28818	708	25	,	,	PUNCT
ajst-28818	708	26	zhang	zhang	PROPN
ajst-28818	708	27	,	,	PUNCT
ajst-28818	708	28	x.b	x.b	PROPN
ajst-28818	708	29	.	.	PROPN
ajst-28818	708	30	,	,	PUNCT
ajst-28818	708	31	2020	2020	NUM
ajst-28818	708	32	.	.	PUNCT
ajst-28818	709	1	modeling	modeling	NOUN
ajst-28818	709	2	and	and	CCONJ
ajst-28818	709	3	numerical	numerical	ADJ
ajst-28818	709	4	study	study	NOUN
ajst-28818	709	5	on	on	ADP
ajst-28818	709	6	drillstring	drillstre	VERB
ajst-28818	709	7	lateral	lateral	ADJ
ajst-28818	709	8	vibration	vibration	NOUN
ajst-28818	709	9	for	for	ADP
ajst-28818	709	10	air	air	NOUN
ajst-28818	709	11	drilling	drilling	NOUN
ajst-28818	709	12	in	in	ADP
ajst-28818	709	13	highly	highly	ADV
ajst-28818	709	14	-	-	PUNCT
ajst-28818	709	15	deviated	deviate	VERB
ajst-28818	709	16	wells	well	NOUN
ajst-28818	709	17	.	.	PUNCT
ajst-28818	710	1	journal	journal	PROPN
ajst-28818	710	2	of	of	ADP
ajst-28818	710	3	petroleum	petroleum	NOUN
ajst-28818	710	4	science	science	NOUN
ajst-28818	710	5	and	and	CCONJ
ajst-28818	710	6	engineering	engineering	NOUN
ajst-28818	710	7	195	195	NUM
ajst-28818	710	8	,	,	PUNCT
ajst-28818	710	9	107913	107913	NUM
ajst-28818	710	10	.	.	PUNCT
ajst-28818	711	1	[	[	X
ajst-28818	711	2	16	16	NUM
ajst-28818	711	3	]	]	X
ajst-28818	711	4	liao	liao	PROPN
ajst-28818	711	5	,	,	PUNCT
ajst-28818	711	6	m.l	m.l	PROPN
ajst-28818	711	7	,	,	PUNCT
ajst-28818	711	8	2020	2020	NUM
ajst-28818	711	9	.	.	PUNCT
ajst-28818	712	1	nonlinear	nonlinear	ADJ
ajst-28818	712	2	dynamics	dynamic	NOUN
ajst-28818	712	3	of	of	ADP
ajst-28818	712	4	a	a	DET
ajst-28818	712	5	vibro	vibro	NOUN
ajst-28818	712	6	-	-	PUNCT
ajst-28818	712	7	impact	impact	NOUN
ajst-28818	712	8	system	system	NOUN
ajst-28818	712	9	for	for	ADP
ajst-28818	712	10	indenter	indenter	NOUN
ajst-28818	712	11	-	-	PUNCT
ajst-28818	712	12	rock	rock	NOUN
ajst-28818	712	13	interaction	interaction	NOUN
ajst-28818	712	14	.	.	PUNCT
ajst-28818	713	1	journal	journal	PROPN
ajst-28818	713	2	of	of	ADP
ajst-28818	713	3	mechanical	mechanical	ADJ
ajst-28818	713	4	engineering	engineering	NOUN
ajst-28818	713	5	56(21	56(21	PROPN
ajst-28818	713	6	)	)	PUNCT
ajst-28818	713	7	,	,	PUNCT
ajst-28818	713	8	121	121	NUM
ajst-28818	713	9	-	-	SYM
ajst-28818	713	10	130	130	NUM
ajst-28818	713	11	.	.	PUNCT
ajst-28818	714	1	[	[	X
ajst-28818	714	2	17	17	NUM
ajst-28818	714	3	]	]	X
ajst-28818	714	4	moharrami	moharrami	NOUN
ajst-28818	714	5	m.j	m.j	PROPN
ajst-28818	714	6	.	.	PROPN
ajst-28818	714	7	,	,	PUNCT
ajst-28818	714	8	martins	martin	VERB
ajst-28818	714	9	c.d	c.d	PROPN
ajst-28818	714	10	.	.	PROPN
ajst-28818	714	11	,	,	PUNCT
ajst-28818	714	12	shirih	shirih	PROPN
ajst-28818	714	13	h.	h.	PROPN
ajst-28818	714	14	,	,	PUNCT
ajst-28818	714	15	2021	2021	NUM
ajst-28818	714	16	.	.	PUNCT
ajst-28818	715	1	nonlinear	nonlinear	ADJ
ajst-28818	715	2	integrated	integrate	VERB
ajst-28818	715	3	dynamic	dynamic	ADJ
ajst-28818	715	4	analysis	analysis	NOUN
ajst-28818	715	5	of	of	ADP
ajst-28818	715	6	drill	drill	NOUN
ajst-28818	715	7	-	-	PUNCT
ajst-28818	715	8	string	string	NOUN
ajst-28818	715	9	under	under	ADP
ajst-28818	715	10	stick	stick	NOUN
ajst-28818	715	11	-	-	PUNCT
ajst-28818	715	12	slip	slip	NOUN
ajst-28818	715	13	vibration	vibration	NOUN
ajst-28818	715	14	.	.	PUNCT
ajst-28818	716	1	applied	apply	VERB
ajst-28818	716	2	ocean	ocean	PROPN
ajst-28818	716	3	research	research	NOUN
ajst-28818	716	4	108(1	108(1	NUM
ajst-28818	716	5	)	)	PUNCT
ajst-28818	716	6	,	,	PUNCT
ajst-28818	716	7	102521	102521	NUM
ajst-28818	716	8	.	.	PUNCT
ajst-28818	717	1	[	[	X
ajst-28818	717	2	18	18	NUM
ajst-28818	717	3	]	]	X
ajst-28818	717	4	morison	morison	PROPN
ajst-28818	717	5	,	,	PUNCT
ajst-28818	717	6	j.r	j.r	PROPN
ajst-28818	717	7	.	.	PROPN
ajst-28818	717	8	,	,	PUNCT
ajst-28818	717	9	johnson	johnson	PROPN
ajst-28818	717	10	,	,	PUNCT
ajst-28818	717	11	j.w	j.w	PROPN
ajst-28818	717	12	.	.	PROPN
ajst-28818	717	13	,	,	PUNCT
ajst-28818	717	14	schaaf	schaaf	PROPN
ajst-28818	717	15	,	,	PUNCT
ajst-28818	717	16	s.a	s.a	PROPN
ajst-28818	717	17	.	.	PROPN
ajst-28818	717	18	,	,	PUNCT
ajst-28818	717	19	1950	1950	NUM
ajst-28818	717	20	.	.	PUNCT
ajst-28818	718	1	the	the	DET
ajst-28818	718	2	force	force	NOUN
ajst-28818	718	3	exerted	exert	VERB
ajst-28818	718	4	by	by	ADP
ajst-28818	718	5	surface	surface	NOUN
ajst-28818	718	6	waves	wave	NOUN
ajst-28818	718	7	on	on	ADP
ajst-28818	718	8	piles	pile	NOUN
ajst-28818	718	9	.	.	PUNCT
ajst-28818	719	1	journal	journal	NOUN
ajst-28818	719	2	of	of	ADP
ajst-28818	719	3	petroleum	petroleum	NOUN
ajst-28818	719	4	technology	technology	NOUN
ajst-28818	719	5	2(5	2(5	NOUN
ajst-28818	719	6	)	)	PUNCT
ajst-28818	719	7	,	,	PUNCT
ajst-28818	719	8	149	149	NUM
ajst-28818	719	9	-	-	SYM
ajst-28818	719	10	154	154	NUM
ajst-28818	719	11	.	.	PUNCT
ajst-28818	720	1	[	[	X
ajst-28818	720	2	19	19	NUM
ajst-28818	720	3	]	]	SYM
ajst-28818	720	4	mao	mao	PROPN
ajst-28818	720	5	,	,	PUNCT
ajst-28818	720	6	l.j	l.j	PROPN
ajst-28818	720	7	.	.	PROPN
ajst-28818	720	8	,	,	PUNCT
ajst-28818	720	9	liu	liu	PROPN
ajst-28818	720	10	q.y	q.y	PROPN
ajst-28818	720	11	.	.	PROPN
ajst-28818	720	12	,	,	PUNCT
ajst-28818	720	13	zhou	zhou	PROPN
ajst-28818	720	14	,	,	PUNCT
ajst-28818	720	15	s.w	s.w	PROPN
ajst-28818	720	16	.	.	PROPN
ajst-28818	720	17	,	,	PUNCT
ajst-28818	720	18	wang	wang	PROPN
ajst-28818	720	19	,	,	PUNCT
ajst-28818	720	20	g.r	g.r	PROPN
ajst-28818	720	21	.	.	PROPN
ajst-28818	720	22	,	,	PUNCT
ajst-28818	720	23	fu	fu	PROPN
ajst-28818	720	24	,	,	PUNCT
ajst-28818	720	25	q.	q.	PROPN
ajst-28818	720	26	,	,	PUNCT
ajst-28818	720	27	2016	2016	NUM
ajst-28818	720	28	.	.	PUNCT
ajst-28818	721	1	deep	deep	ADJ
ajst-28818	721	2	water	water	NOUN
ajst-28818	721	3	drilling	drilling	NOUN
ajst-28818	721	4	riser	riser	NOUN
ajst-28818	721	5	mechanical	mechanical	ADJ
ajst-28818	721	6	behavior	behavior	NOUN
ajst-28818	721	7	analysis	analysis	NOUN
ajst-28818	721	8	considering	consider	VERB
ajst-28818	721	9	actual	actual	ADJ
ajst-28818	721	10	riser	riser	NOUN
ajst-28818	721	11	string	string	NOUN
ajst-28818	721	12	configuration	configuration	NOUN
ajst-28818	721	13	.	.	PUNCT
ajst-28818	722	1	journal	journal	NOUN
ajst-28818	722	2	of	of	ADP
ajst-28818	722	3	natural	natural	ADJ
ajst-28818	722	4	gas	gas	NOUN
ajst-28818	722	5	science	science	NOUN
ajst-28818	722	6	and	and	CCONJ
ajst-28818	722	7	engineering	engineering	NOUN
ajst-28818	722	8	33	33	NUM
ajst-28818	722	9	,	,	PUNCT
ajst-28818	722	10	240	240	NUM
ajst-28818	722	11	-	-	SYM
ajst-28818	722	12	254	254	NUM
ajst-28818	722	13	.	.	PUNCT
ajst-28818	723	1	[	[	X
ajst-28818	723	2	20	20	NUM
ajst-28818	723	3	]	]	X
ajst-28818	723	4	qin	qin	PROPN
ajst-28818	723	5	,	,	PUNCT
ajst-28818	723	6	k.	k.	PROPN
ajst-28818	723	7	,	,	PUNCT
ajst-28818	723	8	di	di	PROPN
ajst-28818	723	9	,	,	PUNCT
ajst-28818	723	10	q.	q.	PROPN
ajst-28818	723	11	,	,	PUNCT
ajst-28818	723	12	zhou	zhou	PROPN
ajst-28818	723	13	,	,	PUNCT
ajst-28818	723	14	x.	x.	PROPN
ajst-28818	723	15	,	,	PUNCT
ajst-28818	723	16	he	he	PRON
ajst-28818	723	17	,	,	PUNCT
ajst-28818	723	18	y.	y.	PROPN
ajst-28818	723	19	,	,	PUNCT
ajst-28818	723	20	wang	wang	PROPN
ajst-28818	723	21	,	,	PUNCT
ajst-28818	723	22	w.	w.	PROPN
ajst-28818	723	23	,	,	PUNCT
ajst-28818	723	24	chen	chen	PROPN
ajst-28818	723	25	,	,	PUNCT
ajst-28818	723	26	f.	f.	PROPN
ajst-28818	723	27	,	,	PUNCT
ajst-28818	723	28	zhang	zhang	PROPN
ajst-28818	723	29	,	,	PUNCT
ajst-28818	723	30	h.	h.	PROPN
ajst-28818	723	31	,	,	PUNCT
ajst-28818	723	32	2022	2022	NUM
ajst-28818	723	33	.	.	PUNCT
ajst-28818	724	1	nonlinear	nonlinear	ADJ
ajst-28818	724	2	dynamic	dynamic	ADJ
ajst-28818	724	3	characteristics	characteristic	NOUN
ajst-28818	724	4	of	of	ADP
ajst-28818	724	5	the	the	DET
ajst-28818	724	6	drill	drill	NOUN
ajst-28818	724	7	-	-	PUNCT
ajst-28818	724	8	string	string	NOUN
ajst-28818	724	9	for	for	ADP
ajst-28818	724	10	deep	deep	ADJ
ajst-28818	724	11	-	-	PUNCT
ajst-28818	724	12	water	water	NOUN
ajst-28818	724	13	and	and	CCONJ
ajst-28818	724	14	ultra	ultra	ADJ
ajst-28818	724	15	-	-	ADJ
ajst-28818	724	16	deep	deep	ADJ
ajst-28818	724	17	water	water	NOUN
ajst-28818	724	18	drilling	drilling	NOUN
ajst-28818	724	19	.	.	PUNCT
ajst-28818	725	1	journal	journal	PROPN
ajst-28818	725	2	of	of	ADP
ajst-28818	725	3	petroleum	petroleum	NOUN
ajst-28818	725	4	science	science	NOUN
ajst-28818	725	5	and	and	CCONJ
ajst-28818	725	6	engineering	engineering	NOUN
ajst-28818	725	7	209	209	NUM
ajst-28818	725	8	,	,	PUNCT
ajst-28818	725	9	109905	109905	NUM
ajst-28818	725	10	.	.	PUNCT
ajst-28818	726	1	[	[	X
ajst-28818	726	2	21	21	NUM
ajst-28818	726	3	]	]	X
ajst-28818	726	4	ren	ren	PROPN
ajst-28818	726	5	,	,	PUNCT
ajst-28818	726	6	f.s	f.s	PROPN
ajst-28818	726	7	.	.	PROPN
ajst-28818	726	8	,	,	PUNCT
ajst-28818	726	9	wang	wang	PROPN
ajst-28818	726	10	b.j	b.j	PROPN
ajst-28818	726	11	.	.	PROPN
ajst-28818	726	12	,	,	PUNCT
ajst-28818	726	13	chen	chen	PROPN
ajst-28818	726	14	,	,	PUNCT
ajst-28818	726	15	s.l	s.l	PROPN
ajst-28818	726	16	.	.	PROPN
ajst-28818	726	17	,	,	PUNCT
ajst-28818	726	18	2018	2018	NUM
ajst-28818	726	19	.	.	PUNCT
ajst-28818	727	1	nonlinear	nonlinear	ADJ
ajst-28818	727	2	modeling	modeling	NOUN
ajst-28818	727	3	and	and	CCONJ
ajst-28818	727	4	qualitative	qualitative	ADJ
ajst-28818	727	5	analysis	analysis	NOUN
ajst-28818	727	6	of	of	ADP
ajst-28818	727	7	coupled	couple	VERB
ajst-28818	727	8	vibrations	vibration	NOUN
ajst-28818	727	9	in	in	ADP
ajst-28818	727	10	a	a	DET
ajst-28818	727	11	drill	drill	NOUN
ajst-28818	727	12	string	string	NOUN
ajst-28818	727	13	.	.	PUNCT
ajst-28818	728	1	international	international	ADJ
ajst-28818	728	2	journal	journal	PROPN
ajst-28818	728	3	of	of	ADP
ajst-28818	728	4	bifurcation	bifurcation	NOUN
ajst-28818	728	5	and	and	CCONJ
ajst-28818	728	6	chaos	chaos	NOUN
ajst-28818	728	7	28(10	28(10	NUM
ajst-28818	728	8	)	)	PUNCT
ajst-28818	728	9	,	,	PUNCT
ajst-28818	728	10	1850119	1850119	NUM
ajst-28818	728	11	.	.	PUNCT
ajst-28818	729	1	[	[	X
ajst-28818	729	2	22	22	NUM
ajst-28818	729	3	]	]	X
ajst-28818	729	4	rajabali	rajabali	NOUN
ajst-28818	729	5	,	,	PUNCT
ajst-28818	729	6	f.	f.	PROPN
ajst-28818	729	7	,	,	PUNCT
ajst-28818	729	8	moradi	moradi	NOUN
ajst-28818	729	9	,	,	PUNCT
ajst-28818	729	10	h.	h.	PROPN
ajst-28818	729	11	,	,	PUNCT
ajst-28818	729	12	vossoughi	vossoughi	PROPN
ajst-28818	729	13	,	,	PUNCT
ajst-28818	729	14	g.	g.	PROPN
ajst-28818	729	15	,	,	PUNCT
ajst-28818	729	16	2020	2020	NUM
ajst-28818	729	17	.	.	PUNCT
ajst-28818	730	1	coupling	couple	VERB
ajst-28818	730	2	analysis	analysis	NOUN
ajst-28818	730	3	and	and	CCONJ
ajst-28818	730	4	control	control	NOUN
ajst-28818	730	5	of	of	ADP
ajst-28818	730	6	axial	axial	ADJ
ajst-28818	730	7	and	and	CCONJ
ajst-28818	730	8	torsional	torsional	ADJ
ajst-28818	730	9	vibrations	vibration	NOUN
ajst-28818	730	10	in	in	ADP
ajst-28818	730	11	a	a	DET
ajst-28818	730	12	horizontal	horizontal	ADJ
ajst-28818	730	13	drill	drill	NOUN
ajst-28818	730	14	-	-	PUNCT
ajst-28818	730	15	string	string	NOUN
ajst-28818	730	16	.	.	PUNCT
ajst-28818	731	1	journal	journal	PROPN
ajst-28818	731	2	of	of	ADP
ajst-28818	731	3	petroleum	petroleum	NOUN
ajst-28818	731	4	science	science	NOUN
ajst-28818	731	5	and	and	CCONJ
ajst-28818	731	6	engineering	engineering	NOUN
ajst-28818	731	7	195	195	NUM
ajst-28818	731	8	,	,	PUNCT
ajst-28818	731	9	107534	107534	NUM
ajst-28818	731	10	.	.	PUNCT
ajst-28818	732	1	[	[	X
ajst-28818	732	2	23	23	NUM
ajst-28818	732	3	]	]	PUNCT
ajst-28818	732	4	robello	robello	PROPN
ajst-28818	732	5	,	,	PUNCT
ajst-28818	732	6	s.	s.	PROPN
ajst-28818	732	7	,	,	PUNCT
ajst-28818	732	8	2013	2013	NUM
ajst-28818	732	9	.	.	PUNCT
ajst-28818	733	1	modeling	modeling	NOUN
ajst-28818	733	2	and	and	CCONJ
ajst-28818	733	3	analysis	analysis	NOUN
ajst-28818	733	4	of	of	ADP
ajst-28818	733	5	drill	drill	NOUN
ajst-28818	733	6	-	-	PUNCT
ajst-28818	733	7	string	string	NOUN
ajst-28818	733	8	vibration	vibration	NOUN
ajst-28818	733	9	in	in	ADP
ajst-28818	733	10	riserless	riserless	NOUN
ajst-28818	733	11	environment	environment	NOUN
ajst-28818	733	12	.	.	PUNCT
ajst-28818	734	1	journal	journal	PROPN
ajst-28818	734	2	of	of	ADP
ajst-28818	734	3	energy	energy	NOUN
ajst-28818	734	4	resources	resource	NOUN
ajst-28818	734	5	technology	technology	NOUN
ajst-28818	734	6	135	135	NUM
ajst-28818	734	7	,	,	PUNCT
ajst-28818	734	8	1	1	NUM
ajst-28818	734	9	-	-	SYM
ajst-28818	734	10	9	9	NUM
ajst-28818	734	11	.	.	PUNCT
ajst-28818	735	1	[	[	X
ajst-28818	735	2	24	24	NUM
ajst-28818	735	3	]	]	SYM
ajst-28818	735	4	su	su	PROPN
ajst-28818	735	5	,	,	PUNCT
ajst-28818	735	6	k.h	k.h	PROPN
ajst-28818	735	7	.	.	PROPN
ajst-28818	735	8	,	,	PUNCT
ajst-28818	735	9	wan	wan	PROPN
ajst-28818	735	10	,	,	PUNCT
ajst-28818	735	11	w.	w.	PROPN
ajst-28818	735	12	,	,	PUNCT
ajst-28818	735	13	liu	liu	PROPN
ajst-28818	735	14	,	,	PUNCT
ajst-28818	735	15	j.l	j.l	PROPN
ajst-28818	735	16	.	.	PROPN
ajst-28818	735	17	,	,	PUNCT
ajst-28818	735	18	qi	qi	PROPN
ajst-28818	735	19	c.w	c.w	PROPN
ajst-28818	735	20	.	.	PROPN
ajst-28818	735	21	,	,	PUNCT
ajst-28818	735	22	2013	2013	NUM
ajst-28818	735	23	.	.	PUNCT
ajst-28818	736	1	drilling	drill	VERB
ajst-28818	736	2	platform	platform	NOUN
ajst-28818	736	3	motion	motion	NOUN
ajst-28818	736	4	effects	effect	NOUN
ajst-28818	736	5	on	on	ADP
ajst-28818	736	6	the	the	DET
ajst-28818	736	7	drill	drill	NOUN
ajst-28818	736	8	-	-	PUNCT
ajst-28818	736	9	string	string	NOUN
ajst-28818	736	10	of	of	ADP
ajst-28818	736	11	deepwater	deepwater	ADJ
ajst-28818	736	12	riserless	riserless	PROPN
ajst-28818	736	13	operational	operational	ADJ
ajst-28818	736	14	mode	mode	NOUN
ajst-28818	736	15	.	.	PUNCT
ajst-28818	737	1	science	science	NOUN
ajst-28818	737	2	technology	technology	NOUN
ajst-28818	737	3	and	and	CCONJ
ajst-28818	737	4	engineering	engineering	NOUN
ajst-28818	737	5	13(7	13(7	NUM
ajst-28818	737	6	)	)	PUNCT
ajst-28818	737	7	,	,	PUNCT
ajst-28818	737	8	1734	1734	NUM
ajst-28818	737	9	-	-	SYM
ajst-28818	737	10	1739	1739	NUM
ajst-28818	737	11	.	.	PUNCT
ajst-28818	738	1	[	[	X
ajst-28818	738	2	25	25	NUM
ajst-28818	738	3	]	]	X
ajst-28818	738	4	tucker	tucker	PROPN
ajst-28818	738	5	,	,	PUNCT
ajst-28818	738	6	w.r	w.r	PROPN
ajst-28818	738	7	.	.	PROPN
ajst-28818	738	8	,	,	PUNCT
ajst-28818	738	9	wang	wang	PROPN
ajst-28818	738	10	,	,	PUNCT
ajst-28818	738	11	c.	c.	PROPN
ajst-28818	738	12	,	,	PUNCT
ajst-28818	738	13	1999	1999	NUM
ajst-28818	738	14	.	.	PUNCT
ajst-28818	739	1	an	an	DET
ajst-28818	739	2	integrated	integrate	VERB
ajst-28818	739	3	model	model	NOUN
ajst-28818	739	4	for	for	ADP
ajst-28818	739	5	drillstring	drillstring	NOUN
ajst-28818	739	6	dynamics	dynamic	NOUN
ajst-28818	739	7	.	.	PUNCT
ajst-28818	740	1	journal	journal	NOUN
ajst-28818	740	2	of	of	ADP
ajst-28818	740	3	sound	sound	NOUN
ajst-28818	740	4	and	and	CCONJ
ajst-28818	740	5	vibration	vibration	NOUN
ajst-28818	740	6	224(1	224(1	NUM
ajst-28818	740	7	)	)	PUNCT
ajst-28818	740	8	,	,	PUNCT
ajst-28818	740	9	123165	123165	NUM
ajst-28818	740	10	.	.	PUNCT
ajst-28818	741	1	[	[	X
ajst-28818	741	2	26	26	NUM
ajst-28818	741	3	]	]	X
ajst-28818	741	4	teng	teng	PROPN
ajst-28818	741	5	,	,	PUNCT
ajst-28818	741	6	x.q	x.q	PROPN
ajst-28818	741	7	.	.	PROPN
ajst-28818	741	8	,	,	PUNCT
ajst-28818	741	9	di	di	PROPN
ajst-28818	741	10	,	,	PUNCT
ajst-28818	741	11	q.f	q.f	PROPN
ajst-28818	741	12	.	.	PROPN
ajst-28818	741	13	,	,	PUNCT
ajst-28818	741	14	li	li	PROPN
ajst-28818	741	15	,	,	PUNCT
ajst-28818	741	16	n.	n.	PROPN
ajst-28818	741	17	,	,	PUNCT
ajst-28818	741	18	chen	chen	PROPN
ajst-28818	741	19	,	,	PUNCT
ajst-28818	741	20	f.	f.	PROPN
ajst-28818	741	21	,	,	PUNCT
ajst-28818	741	22	zhou	zhou	PROPN
ajst-28818	741	23	,	,	PUNCT
ajst-28818	741	24	b.	b.	PROPN
ajst-28818	741	25	,	,	PUNCT
ajst-28818	741	26	wang	wang	PROPN
ajst-28818	741	27	,	,	PUNCT
ajst-28818	741	28	m.	m.	NOUN
ajst-28818	741	29	,	,	PUNCT
ajst-28818	741	30	2017	2017	NUM
ajst-28818	741	31	.	.	PUNCT
ajst-28818	742	1	measurement	measurement	NOUN
ajst-28818	742	2	and	and	CCONJ
ajst-28818	742	3	analysis	analysis	NOUN
ajst-28818	742	4	of	of	ADP
ajst-28818	742	5	stick	stick	NOUN
ajst-28818	742	6	-	-	PUNCT
ajst-28818	742	7	slip	slip	NOUN
ajst-28818	742	8	characteristics	characteristic	NOUN
ajst-28818	742	9	of	of	ADP
ajst-28818	742	10	drill	drill	NOUN
ajst-28818	742	11	string	string	NOUN
ajst-28818	742	12	in	in	ADP
ajst-28818	742	13	ultra	ultra	ADJ
ajst-28818	742	14	-	-	ADJ
ajst-28818	742	15	deep	deep	ADJ
ajst-28818	742	16	wells	well	NOUN
ajst-28818	742	17	.	.	PUNCT
ajst-28818	743	1	petroleum	petroleum	NOUN
ajst-28818	743	2	drilling	drilling	NOUN
ajst-28818	743	3	techniques	technique	NOUN
ajst-28818	743	4	45(2	45(2	NOUN
ajst-28818	743	5	)	)	PUNCT
ajst-28818	743	6	,	,	PUNCT
ajst-28818	743	7	32	32	NUM
ajst-28818	743	8	-	-	SYM
ajst-28818	743	9	39	39	NUM
ajst-28818	743	10	.	.	PUNCT
ajst-28818	744	1	[	[	X
ajst-28818	744	2	27	27	NUM
ajst-28818	744	3	]	]	PUNCT
ajst-28818	744	4	thakar	thakar	NOUN
ajst-28818	744	5	,	,	PUNCT
ajst-28818	744	6	v.	v.	ADV
ajst-28818	744	7	,	,	PUNCT
ajst-28818	744	8	nambiar	nambiar	PROPN
ajst-28818	744	9	,	,	PUNCT
ajst-28818	744	10	s.	s.	PROPN
ajst-28818	744	11	,	,	PUNCT
ajst-28818	744	12	shan	shan	PROPN
ajst-28818	744	13	,	,	PUNCT
ajst-28818	744	14	m.	m.	NOUN
ajst-28818	744	15	,	,	PUNCT
ajst-28818	744	16	sircar	sircar	PROPN
ajst-28818	744	17	,	,	PUNCT
ajst-28818	744	18	a.	a.	NOUN
ajst-28818	744	19	,	,	PUNCT
ajst-28818	744	20	2018	2018	NUM
ajst-28818	744	21	.	.	PUNCT
ajst-28818	745	1	a	a	DET
ajst-28818	745	2	model	model	NOUN
ajst-28818	745	3	on	on	ADP
ajst-28818	745	4	dual	dual	ADJ
ajst-28818	745	5	string	string	NOUN
ajst-28818	745	6	drilling	drilling	NOUN
ajst-28818	745	7	:	:	PUNCT
ajst-28818	745	8	on	on	ADP
ajst-28818	745	9	the	the	DET
ajst-28818	745	10	road	road	NOUN
ajst-28818	745	11	to	to	ADP
ajst-28818	745	12	deep	deep	ADJ
ajst-28818	745	13	waters	water	NOUN
ajst-28818	745	14	.	.	PUNCT
ajst-28818	746	1	modeling	model	VERB
ajst-28818	746	2	earth	earth	NOUN
ajst-28818	746	3	systems	system	NOUN
ajst-28818	746	4	and	and	CCONJ
ajst-28818	746	5	environment	environment	NOUN
ajst-28818	746	6	4(2	4(2	NUM
ajst-28818	746	7	)	)	PUNCT
ajst-28818	746	8	,	,	PUNCT
ajst-28818	746	9	673	673	NUM
ajst-28818	746	10	-	-	SYM
ajst-28818	746	11	684	684	NUM
ajst-28818	746	12	.	.	PUNCT
ajst-28818	747	1	[	[	X
ajst-28818	747	2	28	28	NUM
ajst-28818	747	3	]	]	X
ajst-28818	747	4	vromen	vroman	NOUN
ajst-28818	747	5	,	,	PUNCT
ajst-28818	747	6	t.	t.	PROPN
ajst-28818	747	7	,	,	PUNCT
ajst-28818	747	8	detournay	detournay	PROPN
ajst-28818	747	9	,	,	PUNCT
ajst-28818	747	10	e.	e.	PROPN
ajst-28818	747	11	,	,	PUNCT
ajst-28818	747	12	nijmeijer	nijmeijer	PROPN
ajst-28818	747	13	,	,	PUNCT
ajst-28818	747	14	h.	h.	PROPN
ajst-28818	747	15	,	,	PUNCT
ajst-28818	747	16	van	van	PROPN
ajst-28818	747	17	de	de	X
ajst-28818	747	18	wouw	wouw	PROPN
ajst-28818	747	19	,	,	PUNCT
ajst-28818	747	20	n	n	CCONJ
ajst-28818	747	21	..	..	X
ajst-28818	747	22	2019	2019	NUM
ajst-28818	747	23	.	.	PUNCT
ajst-28818	748	1	dynamics	dynamic	NOUN
ajst-28818	748	2	of	of	ADP
ajst-28818	748	3	drilling	drilling	NOUN
ajst-28818	748	4	systems	system	NOUN
ajst-28818	748	5	with	with	ADP
ajst-28818	748	6	an	an	DET
ajst-28818	748	7	antistall	antistall	ADJ
ajst-28818	748	8	tool	tool	NOUN
ajst-28818	748	9	:	:	PUNCT
ajst-28818	748	10	effect	effect	NOUN
ajst-28818	748	11	on	on	ADP
ajst-28818	748	12	rate	rate	NOUN
ajst-28818	748	13	of	of	ADP
ajst-28818	748	14	penetration	penetration	NOUN
ajst-28818	748	15	and	and	CCONJ
ajst-28818	748	16	mechanical	mechanical	ADJ
ajst-28818	748	17	specific	specific	ADJ
ajst-28818	748	18	energy	energy	NOUN
ajst-28818	748	19	.	.	PUNCT
ajst-28818	749	1	spe	spe	PROPN
ajst-28818	749	2	journal	journal	PROPN
ajst-28818	749	3	24(05	24(05	PROPN
ajst-28818	749	4	)	)	PUNCT
ajst-28818	749	5	,	,	PUNCT
ajst-28818	749	6	1982	1982	NUM
ajst-28818	749	7	-	-	SYM
ajst-28818	749	8	1996	1996	NUM
ajst-28818	749	9	.	.	PUNCT
ajst-28818	750	1	[	[	X
ajst-28818	750	2	29	29	NUM
ajst-28818	750	3	]	]	X
ajst-28818	750	4	wada	wada	PROPN
ajst-28818	750	5	,	,	PUNCT
ajst-28818	750	6	r.	r.	PROPN
ajst-28818	750	7	,	,	PUNCT
ajst-28818	750	8	kaneko	kaneko	PROPN
ajst-28818	750	9	,	,	PUNCT
ajst-28818	750	10	t.	t.	PROPN
ajst-28818	750	11	,	,	PUNCT
ajst-28818	750	12	ozaki	ozaki	PROPN
ajst-28818	750	13	,	,	PUNCT
ajst-28818	750	14	m.	m.	NOUN
ajst-28818	750	15	,	,	PUNCT
ajst-28818	750	16	inoue	inoue	PROPN
ajst-28818	750	17	,	,	PUNCT
ajst-28818	750	18	t.	t.	PROPN
ajst-28818	750	19	,	,	PUNCT
ajst-28818	750	20	senga	senga	PROPN
ajst-28818	750	21	,	,	PUNCT
ajst-28818	750	22	h.	h.	PROPN
ajst-28818	750	23	,	,	PUNCT
ajst-28818	750	24	2018	2018	NUM
ajst-28818	750	25	.	.	PUNCT
ajst-28818	750	26	longitudinal	longitudinal	ADJ
ajst-28818	750	27	natural	natural	ADJ
ajst-28818	750	28	vibration	vibration	NOUN
ajst-28818	750	29	of	of	ADP
ajst-28818	750	30	ultra	ultra	ADJ
ajst-28818	750	31	-	-	ADJ
ajst-28818	750	32	long	long	ADJ
ajst-28818	750	33	drill	drill	NOUN
ajst-28818	750	34	-	-	PUNCT
ajst-28818	750	35	string	string	NOUN
ajst-28818	750	36	during	during	ADP
ajst-28818	750	37	offshore	offshore	ADJ
ajst-28818	750	38	drilling	drilling	NOUN
ajst-28818	750	39	.	.	PUNCT
ajst-28818	751	1	ocean	ocean	PROPN
ajst-28818	751	2	engineering	engineer	VERB
ajst-28818	751	3	156	156	NUM
ajst-28818	751	4	,	,	PUNCT
ajst-28818	751	5	1	1	NUM
ajst-28818	751	6	-	-	SYM
ajst-28818	751	7	13	13	NUM
ajst-28818	751	8	.	.	PUNCT
ajst-28818	752	1	[	[	X
ajst-28818	752	2	30	30	NUM
ajst-28818	752	3	]	]	X
ajst-28818	752	4	wang	wang	PROPN
ajst-28818	752	5	,	,	PUNCT
ajst-28818	752	6	y.	y.	PROPN
ajst-28818	752	7	,	,	PUNCT
ajst-28818	752	8	gao	gao	PROPN
ajst-28818	752	9	,	,	PUNCT
ajst-28818	752	10	d.	d.	PROPN
ajst-28818	752	11	,	,	PUNCT
ajst-28818	752	12	fang	fang	PROPN
ajst-28818	752	13	,	,	PUNCT
ajst-28818	752	14	j.	j.	PROPN
ajst-28818	752	15	,	,	PUNCT
ajst-28818	752	16	2015	2015	NUM
ajst-28818	752	17	.	.	PUNCT
ajst-28818	753	1	study	study	NOUN
ajst-28818	753	2	on	on	ADP
ajst-28818	753	3	lateral	lateral	ADJ
ajst-28818	753	4	nonlinear	nonlinear	ADJ
ajst-28818	753	5	dynamic	dynamic	ADJ
ajst-28818	753	6	response	response	NOUN
ajst-28818	753	7	of	of	ADP
ajst-28818	753	8	deepwater	deepwater	ADJ
ajst-28818	753	9	drilling	drilling	NOUN
ajst-28818	753	10	riser	riser	NOUN
ajst-28818	753	11	with	with	ADP
ajst-28818	753	12	consideration	consideration	NOUN
ajst-28818	753	13	of	of	ADP
ajst-28818	753	14	the	the	DET
ajst-28818	753	15	vessel	vessel	NOUN
ajst-28818	753	16	motions	motion	NOUN
ajst-28818	753	17	in	in	ADP
ajst-28818	753	18	its	its	PRON
ajst-28818	753	19	installation	installation	NOUN
ajst-28818	753	20	.	.	PUNCT
ajst-28818	754	1	cmccomputers	cmccomputer	NOUN
ajst-28818	754	2	,	,	PUNCT
ajst-28818	754	3	materials	material	NOUN
ajst-28818	754	4	&	&	CCONJ
ajst-28818	754	5	continua	continua	PROPN
ajst-28818	754	6	48(1	48(1	PROPN
ajst-28818	754	7	)	)	PUNCT
ajst-28818	754	8	,	,	PUNCT
ajst-28818	754	9	57	57	NUM
ajst-28818	754	10	-	-	SYM
ajst-28818	754	11	75	75	NUM
ajst-28818	754	12	.	.	PUNCT
ajst-28818	755	1	[	[	X
ajst-28818	755	2	31	31	NUM
ajst-28818	755	3	]	]	PUNCT
ajst-28818	755	4	woodacre	woodacre	NOUN
ajst-28818	755	5	,	,	PUNCT
ajst-28818	755	6	j.k	j.k	PROPN
ajst-28818	755	7	.	.	PROPN
ajst-28818	755	8	,	,	PUNCT
ajst-28818	755	9	bauer	bauer	PROPN
ajst-28818	755	10	,	,	PUNCT
ajst-28818	755	11	r.j	r.j	PROPN
ajst-28818	755	12	.	.	PROPN
ajst-28818	755	13	,	,	PUNCT
ajst-28818	755	14	irani	irani	PROPN
ajst-28818	755	15	,	,	PUNCT
ajst-28818	755	16	r.a	r.a	PROPN
ajst-28818	755	17	.	.	PROPN
ajst-28818	755	18	,	,	PUNCT
ajst-28818	755	19	2015	2015	NUM
ajst-28818	755	20	.	.	PUNCT
ajst-28818	756	1	a	a	DET
ajst-28818	756	2	review	review	NOUN
ajst-28818	756	3	of	of	ADP
ajst-28818	756	4	vertical	vertical	ADJ
ajst-28818	756	5	motion	motion	NOUN
ajst-28818	756	6	heave	heave	VERB
ajst-28818	756	7	compensation	compensation	NOUN
ajst-28818	756	8	systems	system	NOUN
ajst-28818	756	9	,	,	PUNCT
ajst-28818	756	10	ocean	ocean	NOUN
ajst-28818	756	11	engineering	engineering	NOUN
ajst-28818	756	12	104	104	NUM
ajst-28818	756	13	,	,	PUNCT
ajst-28818	756	14	140	140	NUM
ajst-28818	756	15	-	-	SYM
ajst-28818	756	16	154	154	NUM
ajst-28818	756	17	.	.	PUNCT
ajst-28818	757	1	[	[	X
ajst-28818	757	2	32	32	NUM
ajst-28818	757	3	]	]	X
ajst-28818	757	4	wang	wang	PROPN
ajst-28818	757	5	,	,	PUNCT
ajst-28818	757	6	s.q	s.q	PROPN
ajst-28818	757	7	.	.	PROPN
ajst-28818	757	8	,	,	PUNCT
ajst-28818	757	9	liang	liang	PROPN
ajst-28818	757	10	,	,	PUNCT
ajst-28818	757	11	b.c	b.c	PROPN
ajst-28818	757	12	.	.	PROPN
ajst-28818	757	13	,	,	PUNCT
ajst-28818	757	14	2013	2013	NUM
ajst-28818	757	15	.	.	PUNCT
ajst-28818	758	1	wave	wave	NOUN
ajst-28818	758	2	mechanics	mechanic	NOUN
ajst-28818	758	3	for	for	ADP
ajst-28818	758	4	ocean	ocean	NOUN
ajst-28818	758	5	engineering	engineering	NOUN
ajst-28818	758	6	.	.	PUNCT
ajst-28818	759	1	ocean	ocean	PROPN
ajst-28818	759	2	university	university	PROPN
ajst-28818	759	3	of	of	ADP
ajst-28818	759	4	china	china	PROPN
ajst-28818	759	5	press	press	PROPN
ajst-28818	759	6	.	.	PUNCT
ajst-28818	760	1	china	china	PROPN
ajst-28818	760	2	.	.	PUNCT
ajst-28818	761	1	[	[	X
ajst-28818	761	2	33	33	NUM
ajst-28818	761	3	]	]	X
ajst-28818	761	4	niedzwecki	niedzwecki	PROPN
ajst-28818	761	5	,	,	PUNCT
ajst-28818	761	6	j.m	j.m	PROPN
ajst-28818	761	7	.	.	PROPN
ajst-28818	761	8	,	,	PUNCT
ajst-28818	761	9	thampi	thampi	PROPN
ajst-28818	761	10	,	,	PUNCT
ajst-28818	761	11	s.k	s.k	PROPN
ajst-28818	761	12	.	.	PROPN
ajst-28818	761	13	,	,	PUNCT
ajst-28818	761	14	1988	1988	NUM
ajst-28818	761	15	.	.	PUNCT
ajst-28818	761	16	heave	heave	VERB
ajst-28818	761	17	compensated	compensate	VERB
ajst-28818	761	18	response	response	NOUN
ajst-28818	761	19	of	of	ADP
ajst-28818	761	20	long	long	ADJ
ajst-28818	761	21	multi	multi	ADJ
ajst-28818	761	22	-	-	ADJ
ajst-28818	761	23	segment	segment	ADJ
ajst-28818	761	24	drill	drill	NOUN
ajst-28818	761	25	-	-	PUNCT
ajst-28818	761	26	string	string	NOUN
ajst-28818	761	27	,	,	PUNCT
ajst-28818	761	28	applied	apply	VERB
ajst-28818	761	29	ocean	ocean	NOUN
ajst-28818	761	30	research	research	NOUN
ajst-28818	761	31	10(4),181	10(4),181	NUM
ajst-28818	761	32	-	-	SYM
ajst-28818	761	33	190	190	NUM
ajst-28818	761	34	.	.	PUNCT
ajst-28818	762	1	[	[	X
ajst-28818	762	2	34	34	NUM
ajst-28818	762	3	]	]	X
ajst-28818	762	4	xu	xu	PROPN
ajst-28818	762	5	,	,	PUNCT
ajst-28818	762	6	q.	q.	PROPN
ajst-28818	762	7	,	,	PUNCT
ajst-28818	762	8	chen	chen	PROPN
ajst-28818	762	9	,	,	PUNCT
ajst-28818	762	10	g.m	g.m	PROPN
ajst-28818	762	11	.	.	PROPN
ajst-28818	762	12	,	,	PUNCT
ajst-28818	762	13	wang	wang	PROPN
ajst-28818	762	14	,	,	PUNCT
ajst-28818	762	15	g.d	g.d	PROPN
ajst-28818	762	16	.	.	PROPN
ajst-28818	762	17	,	,	PUNCT
ajst-28818	762	18	zhou	zhou	PROPN
ajst-28818	762	19	,	,	PUNCT
ajst-28818	762	20	c.j	c.j	PROPN
ajst-28818	762	21	.	.	PROPN
ajst-28818	762	22	,	,	PUNCT
ajst-28818	762	23	yin	yin	PROPN
ajst-28818	762	24	,	,	PUNCT
ajst-28818	762	25	z.m	z.m	PROPN
ajst-28818	762	26	.	.	PROPN
ajst-28818	762	27	,	,	PUNCT
ajst-28818	762	28	2011	2011	NUM
ajst-28818	762	29	.	.	PUNCT
ajst-28818	763	1	research	research	NOUN
ajst-28818	763	2	and	and	CCONJ
ajst-28818	763	3	application	application	NOUN
ajst-28818	763	4	prospect	prospect	NOUN
ajst-28818	763	5	of	of	ADP
ajst-28818	763	6	riserless	riserless	NOUN
ajst-28818	763	7	mud	mud	NOUN
ajst-28818	763	8	recovery	recovery	NOUN
ajst-28818	763	9	drilling	drilling	NOUN
ajst-28818	763	10	technique	technique	NOUN
ajst-28818	763	11	.	.	PUNCT
ajst-28818	764	1	drilling	drilling	NOUN
ajst-28818	764	2	and	and	CCONJ
ajst-28818	764	3	production	production	NOUN
ajst-28818	764	4	technology	technology	NOUN
ajst-28818	764	5	34(01	34(01	NUM
ajst-28818	764	6	)	)	PUNCT
ajst-28818	764	7	,	,	PUNCT
ajst-28818	764	8	11	11	NUM
ajst-28818	764	9	-	-	SYM
ajst-28818	764	10	13	13	NUM
ajst-28818	764	11	.	.	PUNCT
ajst-28818	765	1	[	[	X
ajst-28818	765	2	35	35	NUM
ajst-28818	765	3	]	]	X
ajst-28818	765	4	xing	xing	PROPN
ajst-28818	765	5	,	,	PUNCT
ajst-28818	765	6	y.f	y.f	PROPN
ajst-28818	765	7	.	.	PROPN
ajst-28818	765	8	,	,	PUNCT
ajst-28818	765	9	liang	liang	PROPN
ajst-28818	765	10	,	,	PUNCT
ajst-28818	765	11	k.	k.	PROPN
ajst-28818	765	12	,	,	PUNCT
ajst-28818	765	13	2015	2015	NUM
ajst-28818	765	14	.	.	PUNCT
ajst-28818	766	1	nonlinear	nonlinear	ADJ
ajst-28818	766	2	vibration	vibration	NOUN
ajst-28818	766	3	analysis	analysis	NOUN
ajst-28818	766	4	of	of	ADP
ajst-28818	766	5	longitudinal	longitudinal	ADJ
ajst-28818	766	6	-	-	PUNCT
ajst-28818	766	7	transverse	transverse	NOUN
ajst-28818	766	8	coupled	couple	VERB
ajst-28818	766	9	beam	beam	NOUN
ajst-28818	766	10	.	.	PUNCT
ajst-28818	767	1	journal	journal	PROPN
ajst-28818	767	2	of	of	ADP
ajst-28818	767	3	beijing	beijing	PROPN
ajst-28818	767	4	university	university	PROPN
ajst-28818	767	5	of	of	ADP
ajst-28818	767	6	aeronautics	aeronautics	PROPN
ajst-28818	767	7	and	and	CCONJ
ajst-28818	767	8	astronautics	astronautic	NOUN
ajst-28818	767	9	41(8	41(8	PROPN
ajst-28818	767	10	)	)	PUNCT
ajst-28818	767	11	,	,	PUNCT
ajst-28818	767	12	1359	1359	NUM
ajst-28818	767	13	-	-	SYM
ajst-28818	767	14	1366	1366	NUM
ajst-28818	767	15	.	.	PUNCT
ajst-28818	768	1	[	[	X
ajst-28818	768	2	36	36	NUM
ajst-28818	768	3	]	]	X
ajst-28818	768	4	xia	xia	PROPN
ajst-28818	768	5	,	,	PUNCT
ajst-28818	768	6	k.	k.	PROPN
ajst-28818	768	7	,	,	PUNCT
ajst-28818	768	8	wang	wang	PROPN
ajst-28818	768	9	,	,	PUNCT
ajst-28818	768	10	z.	z.	PROPN
ajst-28818	768	11	,	,	PUNCT
ajst-28818	768	12	chen	chen	PROPN
ajst-28818	768	13	,	,	PUNCT
ajst-28818	768	14	g.	g.	PROPN
ajst-28818	768	15	,	,	PUNCT
ajst-28818	768	16	2019	2019	NUM
ajst-28818	768	17	.	.	PUNCT
ajst-28818	769	1	assessment	assessment	NOUN
ajst-28818	769	2	on	on	ADP
ajst-28818	769	3	drilling	drilling	NOUN
ajst-28818	769	4	load	load	NOUN
ajst-28818	769	5	for	for	ADP
ajst-28818	769	6	riserless	riserless	NOUN
ajst-28818	769	7	drilling	drilling	NOUN
ajst-28818	769	8	technique	technique	NOUN
ajst-28818	769	9	.	.	PUNCT
ajst-28818	770	1	drilling	drilling	NOUN
ajst-28818	770	2	and	and	CCONJ
ajst-28818	770	3	production	production	NOUN
ajst-28818	770	4	technology	technology	NOUN
ajst-28818	770	5	43(5),16	43(5),16	NUM
ajst-28818	770	6	-	-	SYM
ajst-28818	770	7	19	19	NUM
ajst-28818	770	8	.	.	PUNCT
ajst-28818	770	9	309	309	NUM
ajst-28818	771	1	[	[	X
ajst-28818	771	2	37	37	NUM
ajst-28818	771	3	]	]	X
ajst-28818	771	4	xie	xie	PROPN
ajst-28818	771	5	,	,	PUNCT
ajst-28818	771	6	k.	k.	PROPN
ajst-28818	771	7	,	,	PUNCT
ajst-28818	771	8	wang	wang	PROPN
ajst-28818	771	9	y.	y.	PROPN
ajst-28818	771	10	,	,	PUNCT
ajst-28818	771	11	fug	fug	NOUN
ajst-28818	771	12	,	,	PUNCT
ajst-28818	771	13	t.	t.	NOUN
ajst-28818	771	14	,	,	PUNCT
ajst-28818	771	15	2019	2019	NUM
ajst-28818	771	16	.	.	PUNCT
ajst-28818	772	1	dynamic	dynamic	ADJ
ajst-28818	772	2	response	response	NOUN
ajst-28818	772	3	of	of	ADP
ajst-28818	772	4	axially	axially	ADV
ajst-28818	772	5	functionally	functionally	ADV
ajst-28818	772	6	graded	grade	VERB
ajst-28818	772	7	beam	beam	NOUN
ajst-28818	772	8	with	with	ADP
ajst-28818	772	9	longitudinal	longitudinal	ADJ
ajst-28818	772	10	-	-	PUNCT
ajst-28818	772	11	transverse	transverse	NOUN
ajst-28818	772	12	coupling	coupling	NOUN
ajst-28818	772	13	effect	effect	NOUN
ajst-28818	772	14	.	.	PUNCT
ajst-28818	773	1	aerospace	aerospace	NOUN
ajst-28818	773	2	science	science	NOUN
ajst-28818	773	3	and	and	CCONJ
ajst-28818	773	4	technology	technology	NOUN
ajst-28818	773	5	85	85	NUM
ajst-28818	773	6	,	,	PUNCT
ajst-28818	773	7	85	85	NUM
ajst-28818	773	8	-	-	SYM
ajst-28818	773	9	98	98	NUM
ajst-28818	773	10	.	.	PUNCT
ajst-28818	774	1	[	[	X
ajst-28818	774	2	38	38	NUM
ajst-28818	774	3	]	]	PUNCT
ajst-28818	774	4	yin	yin	PROPN
ajst-28818	774	5	,	,	PUNCT
ajst-28818	774	6	y.q	y.q	PROPN
ajst-28818	774	7	.	.	PROPN
ajst-28818	774	8	,	,	PUNCT
ajst-28818	774	9	1987	1987	NUM
ajst-28818	774	10	.	.	PUNCT
ajst-28818	775	1	introduction	introduction	NOUN
ajst-28818	775	2	to	to	ADP
ajst-28818	775	3	nonlinear	nonlinear	ADJ
ajst-28818	775	4	finite	finite	ADJ
ajst-28818	775	5	element	element	NOUN
ajst-28818	775	6	in	in	ADP
ajst-28818	775	7	solid	solid	ADJ
ajst-28818	775	8	mechanics	mechanic	NOUN
ajst-28818	775	9	.	.	PUNCT
ajst-28818	776	1	peking	peking	PROPN
ajst-28818	776	2	university	university	PROPN
ajst-28818	776	3	press	press	NOUN
ajst-28818	776	4	,	,	PUNCT
ajst-28818	776	5	tsinghua	tsinghua	PROPN
ajst-28818	776	6	university	university	PROPN
ajst-28818	776	7	press	press	PROPN
ajst-28818	776	8	,	,	PUNCT
ajst-28818	776	9	beijing	beijing	PROPN
ajst-28818	776	10	,	,	PUNCT
ajst-28818	776	11	china	china	PROPN
ajst-28818	776	12	.	.	PUNCT
ajst-28818	777	1	[	[	X
ajst-28818	777	2	39	39	NUM
ajst-28818	777	3	]	]	SYM
ajst-28818	777	4	yang	yang	PROPN
ajst-28818	777	5	,	,	PUNCT
ajst-28818	777	6	j.h	j.h	PROPN
ajst-28818	777	7	.	.	PROPN
ajst-28818	777	8	,	,	PUNCT
ajst-28818	777	9	guo	guo	PROPN
ajst-28818	777	10	,	,	PUNCT
ajst-28818	777	11	x.x	x.x	PROPN
ajst-28818	777	12	.	.	PROPN
ajst-28818	777	13	,	,	PUNCT
ajst-28818	777	14	qiu	qiu	PROPN
ajst-28818	777	15	,	,	PUNCT
ajst-28818	777	16	m.x	m.x	PROPN
ajst-28818	777	17	.	.	PROPN
ajst-28818	777	18	,	,	PUNCT
ajst-28818	777	19	sun	sun	PROPN
ajst-28818	777	20	,	,	PUNCT
ajst-28818	777	21	n.d	n.d	PROPN
ajst-28818	777	22	.	.	PROPN
ajst-28818	777	23	,	,	PUNCT
ajst-28818	777	24	2019	2019	NUM
ajst-28818	777	25	.	.	PUNCT
ajst-28818	777	26	disruptive	disruptive	ADJ
ajst-28818	777	27	innovations	innovation	NOUN
ajst-28818	777	28	in	in	ADP
ajst-28818	777	29	the	the	DET
ajst-28818	777	30	future	future	ADJ
ajst-28818	777	31	oil	oil	NOUN
ajst-28818	777	32	and	and	CCONJ
ajst-28818	777	33	gas	gas	NOUN
ajst-28818	777	34	industry	industry	NOUN
ajst-28818	777	35	.	.	PUNCT
ajst-28818	778	1	world	world	NOUN
ajst-28818	778	2	petroleum	petroleum	NOUN
ajst-28818	778	3	industry	industry	NOUN
ajst-28818	778	4	26(6	26(6	NOUN
ajst-28818	778	5	)	)	PUNCT
ajst-28818	778	6	,	,	PUNCT
ajst-28818	778	7	23	23	NUM
ajst-28818	778	8	-	-	SYM
ajst-28818	778	9	29	29	NUM
ajst-28818	778	10	.	.	PUNCT
ajst-28818	779	1	[	[	X
ajst-28818	779	2	40	40	NUM
ajst-28818	779	3	]	]	X
ajst-28818	779	4	zhao	zhao	PROPN
ajst-28818	779	5	,	,	PUNCT
ajst-28818	779	6	d.	d.	PROPN
ajst-28818	779	7	,	,	PUNCT
ajst-28818	779	8	hovda	hovda	PROPN
ajst-28818	779	9	,	,	PUNCT
ajst-28818	779	10	s.	s.	PROPN
ajst-28818	779	11	,	,	PUNCT
ajst-28818	779	12	sangesland	sangesland	PROPN
ajst-28818	779	13	,	,	PUNCT
ajst-28818	779	14	s.	s.	PROPN
ajst-28818	779	15	,	,	PUNCT
ajst-28818	779	16	2016	2016	NUM
ajst-28818	779	17	.	.	PUNCT
ajst-28818	780	1	the	the	DET
ajst-28818	780	2	effect	effect	NOUN
ajst-28818	780	3	of	of	ADP
ajst-28818	780	4	stick	stick	NOUN
ajst-28818	780	5	slip	slip	VERB
ajst-28818	780	6	vibration	vibration	NOUN
ajst-28818	780	7	on	on	ADP
ajst-28818	780	8	the	the	DET
ajst-28818	780	9	backward	backward	ADJ
ajst-28818	780	10	whirl	whirl	NOUN
ajst-28818	780	11	of	of	ADP
ajst-28818	780	12	bottom	bottom	ADJ
ajst-28818	780	13	hole	hole	NOUN
ajst-28818	780	14	assembly	assembly	NOUN
ajst-28818	780	15	in	in	ADP
ajst-28818	780	16	drill	drill	NOUN
ajst-28818	780	17	-	-	PUNCT
ajst-28818	780	18	string	string	NOUN
ajst-28818	780	19	,	,	PUNCT
ajst-28818	780	20	in	in	ADP
ajst-28818	780	21	:	:	PUNCT
ajst-28818	780	22	proceedings	proceeding	NOUN
ajst-28818	780	23	of	of	ADP
ajst-28818	780	24	the	the	DET
ajst-28818	780	25	asme	asme	PROPN
ajst-28818	780	26	35th	35th	ADJ
ajst-28818	780	27	international	international	ADJ
ajst-28818	780	28	conference	conference	NOUN
ajst-28818	780	29	on	on	ADP
ajst-28818	780	30	ocean	ocean	NOUN
ajst-28818	780	31	,	,	PUNCT
ajst-28818	780	32	offshore	offshore	ADJ
ajst-28818	780	33	and	and	CCONJ
ajst-28818	780	34	arctic	arctic	ADJ
ajst-28818	780	35	engineering	engineering	NOUN
ajst-28818	780	36	,	,	PUNCT
ajst-28818	780	37	v008t11a042	v008t11a042	NOUN
ajst-28818	780	38	.	.	PUNCT