id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fcis-7989	Jiang, Yinling; Zhu, Ke; Zhang, Qiang; Zhao, Shuai	Stick slip vibration control of drill string based on torque feedforward and sliding mode controller	2023	4	.pdf	application/pdf	2848	132	66	Among them, the TF-SMC-PID controller has significantly better overshoot indicators for drill bit speed, and the peak to peak oscillation is significantly lower compared to other controllers. 0 10 20 30 0 3 6 9 12 15 w / r ad -s t / s wref wr TF-SMC-PID wr TF-SMC wr SMC wr PID (a) 0 10 20 30 0 4 8 12 16 20 w / r ad -s t / s wref wr TF-SMC-PID wr TF-SMC wr SMC wr PID (b) Compared to PID controllers, TF-SMC-PID controllers significantly increase the response speed of drill bit speed, shorten the adjustment time, significantly reduce overshoot, and significantly lower the peak value of vibration when controlling the drill string system.	cache/fcis-7989.pdf	txt/fcis-7989.txt