Vibration Characteristics of Cylindrical Membrane

Based on the principle of D’Alembert, the nonlinear vibration equation of cylindrical membrane is established, and the analysis and experimental verification of it are conducted. The control equation system for cylindrical membrane vibration problems is established, and the equation system according...

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Bibliographic Details
Published inShànghăi jiāotōng dàxué xuébào Vol. 58; no. 4; pp. 428 - 437
Main Author HUANG Tao, HE Zeqing, SONG Lin
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Shanghai Jiao Tong University 01.04.2024
Subjects
additional mass of air
curvature membrane
nonlinear vibration
wet modal
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Summary:Based on the principle of D’Alembert, the nonlinear vibration equation of cylindrical membrane is established, and the analysis and experimental verification of it are conducted. The control equation system for cylindrical membrane vibration problems is established, and the equation system according to the physical equations and boundary conditions of thin diaphragms is simplified and solved, the analytical solution of nonlinear vibration frequency of cylindrical membrane is obtained, and the linear analytical solution is verified by finite element simulation, which shows that the error between theoretical calculation and numerical simulation is small, and the applicability of finite element method to the modal analysis of flexible membrane structure is verified. A 3D laser scanning vibration measurement system is used to test the vibration frequency of cylindrical membranes in the air environment. The finite element analysis software is used to obtain the dry mode and wet mode vibration frequencies of cylind
ISSN:1006-2467
DOI:10.16183/j.cnki.jsjtu.2022.396