Generalized Differential Quadrature Method for Free Vibration Analysis of a Rotating Composite Thin-Walled Shaft

被引：7
|
作者：
Zhong, Weiyan [1 ]
Gao, Feng [1 ]
Ren, Yongsheng [1 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Mech & Elect Engn, Qingdao 266590, Shandong, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2019年 / 2019卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1155/2019/1538329
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A refined variational asymptotic method (VAM) and Hamilton's principle were used to establish the free vibration differential equations of a rotating composite thin-walled shaft with circumferential uniform stiffness (CUS) configuration. The generalized differential quadrature method (GDQM) was adopted to discretize and solve the governing equations. The accuracy and efficiency of the GDQM were validated in analyzing the frequency of a rotating composite shaft. Compared to the available results in literature, the computational results by the GDQM are accurate. In addition, effects of boundary conditions, rotating speed, ply angle, ratio of radius over thickness, and ratio of length over radius on the frequency characteristics were also investigated.
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页数：16
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