圆柱壳振动分析中的动刚度法

IF 0.5 Q4 ENGINEERING, CIVIL

Gradevnski Materijiali I Konstrukcije-Building Materials and Structures Pub Date : 1900-01-01 DOI:10.5937/GRMK1603045K

Nevenka Kolarević, M. Nefovska-Danilović, M. Petronijević

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引用次数: 9

摘要

本文将动刚度法应用于圆柱壳的自由振动分析。根据fluge薄壳理论，在圆柱壳自由振动精确解的基础上，建立了圆柱壳的动刚度矩阵。该矩阵是频率相关的，除了刚度，还包括惯性和阻尼效应。推导出的动力刚度矩阵在计算圆柱壳固有频率和振型的Matlab程序中实现。给出了几个数值算例。所得结果与利用商业有限元程序Abaqus得到的结果以及文献中可用的解析解进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Dynamic stiffness method in the vibration analysis of circular cylindrical shell

In this paper the dynamic stiffness method is used for free vibration analysis of a circular cylindrical shell. The dynamic stiffness matrix is formulated on the base of the exact solution for free vibration of a circular cylindrical shell according to the Flugge thin shell theory. The matrix is frequency dependent and, besides the stiffness, includes inertia and damping effects. The derived dynamic stiffness matrix is implemented in the code developed in a Matlab program for computing natural frequencies and mode shapes of a circular cylindrical shell. Several numerical examples are carried out. The obtained results are validated against the results obtained by using the commercial finite element program Abaqus as well as the available analytical solutions from the literature.

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来源期刊

Gradevnski Materijiali I Konstrukcije-Building Materials and Structures ENGINEERING, CIVIL-

自引率

25.00%

发文量

审稿时长

4 weeks