Dynamic Analysis of a Tapered Composite Thin-Walled Rotating Shaft Using the Generalized Differential Quadrature Method. (14th June 2020)

• Record Type: Journal Article
• Authors: Zhong, Weiyan; Gao, Feng; Ren, Yongsheng; Wu, Xiaoxiao; Ma, Hongcan
• Other Names: Ma Dazhong Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2020(2020)
• Publication Date: 2020-06-14
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2020/1695430
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : A dynamic model of a tapered composite thin-walled rotating shaft is presented. In this model, the transverse shear deformation, rotary inertia, and gyroscopic effects have been incorporated. The equations of motion are derived based on a refined variational asymptotic method (VAM) and Hamilton's principle. The partial differential equations of motion are reduced to the ordinary differential equations of motion by using the generalized differential quadrature method (GDQM). The validity of the dynamic model is proved by comparing the numerical results with those obtained in the literature and by using ANSYS. The effects of taper ratio, boundary conditions, ply angle, length to mean radius ratios, and mean radius to thickness ratios on the natural frequencies and critical rotating speeds are investigated.