扭转弹簧约束复合材料层压梁的自由振动

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Abstract Based on the Galerkin method, an explicit analytical solution for free vibration of laminated composite beams with the boundary ends elastically-restrained against rotation is presented. In order to avoid the numerical instability of the classical vibration eigenfunction of higher order (≥11) modes, the transverse deflection functions of the rotationally-restrained laminated composite beams are constructed through a unique weighting combination of (modified) vibration eigenfunctions of hinged-hinged, fixed-fixed, hinged-fixed and fixed-hinged beams. The validity study shows that the present explicit analytical solution is effective in performing free vibration analyses of laminated composite beams with ends elastically-restrained against rotation.

Key words： free vibration rotationally-restrained laminated composite beams Glerkin method an explicit analytical solution

Received: 25 May 2022 Published: 15 July 2023

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	Articles by authors
	CHEN Qingyuan
	LI Jing
	FANG Pengya
	PEI Shixun
	LIU Shuangyan
	SU Yi

Cite this article:

CHEN Qingyuan,LI Jing,FANG Pengya, et al. Free transverse vibration of composite laminated beam restrained by torsion springs[J]. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(13): 170-176.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2023/V42/I13/170

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