Free vibration of asymmetric porous functionally graded material sandwich plates on elastic foundations

被引：0
|
作者：
Huang, Zhicheng [1 ]
Han, Mengna [1 ]
Wang, Xingguo [1 ]
Chu, Fulei [2 ]
机构：
[1] College of Mechanieal and Electronic Engineering, Jingdezhen Ceramic University, Jingdezhen
[2] Department of Mechanical Engineering, Tsinghua University, Beijing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 10期
关键词：
elastic foundation; free vibration; functionally graded materials (FGM); natural frequency; sandwich plate;
D O I：
10.13465/j.cnki.jvs.2024.10.019
中图分类号：
学科分类号：
摘要：
Based on the refined shear deformation theory, the free vibration of asymmetric porous functionally graded material (FGM) sandwich plates on elastic foundations was studied and a new free vibration model, containing only four unknown variables, for asymmetric porous FGM sandwich plates on elastic foundations was proposed. The governing equation was established using the Hamilton' s principle and the natural frequency of the sandwich plate with four simply supported sides was obtained using the Navier method. The plate model was degraded into an asymmetric FGM sandwich plate on an inelastic foundation to verify the accuracy of the model. Finally, the influence of parameter changes on the free vibration behavior of asymmetric porous FGM sandwich plates on elastic foundations was discussed in detail. It is found that the natural frequency of asymmetric porous FGM sandwich plates with different elastic coefficients increases with the increase of side-to-thickness ratio, while it has different change with the increase of volume fraction index. © 2024 Chinese Vibration Engineering Society. All rights reserved.
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页码：156 / 163
页数：7
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