id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-632	Jabir, Kusay H.	حدود سرعة الرفرفة للصفائح المسلوبة و المستطيلة الناتئة	2007	13	.pdf	application/pdf	3855	176	69	Abstract: The aerodynamic and elastic forces may cause an oscillation of the structure such as the high frequency of the airfoil surfaces and the dynamic instability occurring in an aircraft in flight and failure may occur at a speed called flutter speed. Different design parameters were investigated such as aspect ratio, thickness and their effects on flutter velocity.	cache/alkej-632.pdf	txt/alkej-632.txt