文章基本信息

标题：Primary instability regions of square plates subjected to uniaxial in-plane periodic compression load
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作者：Ahmed A. Al-Rajihy ; Abdulkareem Abdulrazzaq Alhumdany ; Adil Habeeb Al-Hussaini 等
期刊名称：International Journal of Energy and Environment
印刷版ISSN：2076-2895
电子版ISSN：2076-2909
出版年度：2016
卷号：7
期号：3
页码：241-252
出版社：International Energy and Environment Foundation (IEEF)
摘要：The purpose of this paper is to investigate the dynamical behavior and the parametric primary instability of thin square elastic plate subjected to uniform in-plane uniaxial periodic compression load. The plate is assumed to be simply supported along its four edges (SSSS). Based on small deflection theory of plates, the value of natural frequency of free vibration and buckling load are determined by assuming the mode shape of vibration of plates simply supported along all edges. If the plate subjected to parametric excitation the plate lose its stability dynamically by flutter. The instability regions are found according to Bolotin's concept. In the present research the effects of excitation parameter and load value are studied. It is found that increasing both of the excitation parameter and loading value cause an increase in the regions of instability. An experimental work is conducted to verify the accuracy of the mathematical model. Good agreement between the theoretical and experimental results is obtained within 8% error
关键词：Parametric instability; Small deflection theory; Buckling load; Primary instability regions; Excitation parameter