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首页> 外文期刊>Journal of thermal stresses >Buckling and vibro-acoustic characteristics of the trapezoidal corrugated sandwich plate in thermal environment
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Buckling and vibro-acoustic characteristics of the trapezoidal corrugated sandwich plate in thermal environment

机译：热环境中梯形波纹夹层板的屈曲和振动声学特性

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摘要

The present study is concerned with the buckling, vibration and sound transmission characteristics of the simply supported sandwich plate with trapezoidal corrugated core in thermal environment based on the hyperbolic tangent parabola shear deformation theory (HTPSDT). The displacement field of the present theory is chosen based on nonlinear variations in the in-plane displacements through the thickness of the plate. The theoretical models of the buckling, vibration and sound transmission loss of the sandwich plate are derived from Hamilton's principle and acoustic theory. Numerical results for the natural frequencies and sound transmission loss of the trapezoidal corrugated sandwich plate under different temperature variations are presented. The accuracy of the present theory is verified by comparing the obtained results with solutions available in the literature and the FEM results. Furthermore, parametric studies are taken up to investigate the influences of material types, core thickness, width-length ratio of the plate on the critical buckling temperature, fundamental frequency and sound transmission loss of the trapezoidal corrugated sandwich plate.
机译：本研究涉及基于双曲线切线剪切变形理论（HTPSDT）的热环境中具有梯形瓦楞芯的简单支持的夹层板的屈曲，振动和声音传动特性。基于通过板的厚度的面内位移中的非线性变化来选择本理论的位移场。夹层，夹层板的屈曲，振动和声音传输损耗的理论模型来自汉密尔顿的原理和声学理论。介绍了在不同温度变化下梯形波纹夹层板的自然频率和声音传输的数值结果。通过将所获得的结果与文献中可用的解决方案和有限元件的解决方案进行比较来验证本理论的准确性。此外，参数化研究旨在研究材料类型，芯厚度，板宽度比对梯形皱型夹层板的关键屈曲温度，基波频率和声音传输损失的影响。

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