Connatural characteristics Analysis for Rectangular Orthotropic HoneycombSandwich Panels with All Edges Simply Supported

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (9) : 73-77,8.

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Connatural characteristics Analysis for Rectangular Orthotropic HoneycombSandwich Panels with All Edges Simply Supported

Wang Sheng-chun1,2 , Deng Zhao-xiang1, Wang Pan1, Cao You-qiang1

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Abstract

The natural frequency of rectangular orthotropic honeycomb sandwich panels having simply supported boundary conditions is investigated. With the transverse shear deformation taken into account by using the Reissner-Mindlin shear deformation plate theory, a simple approach to reduce the governing equations for orthotropic honeycomb sandwich panels to a single equation containing only one displacement function is presented, and then the exact solutions of the natural frequencies for rectangular orthotropic honeycomb sandwich panels with all edges simply supported is obtained. The accuracy of the theoretical predictions is checked against existing experimental and analytical results, with good agreement achieved. The influence of face sheet and core’s structural and material parameters on the natural frequency of orthotropic honeycomb sandwich panels is then systematically studied and the regulation mechanism of parameters on natural frequency is analyzed. The conclusions are instructive to applications of honeycomb panels in engineering.

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orthotropic / honeycomb sandwich structures / flexural vibration / natural frequencies / computer simulation

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Wang Sheng-chun;;Deng Zhao-xiang; Wang Pan; Cao You-qiang. Connatural characteristics Analysis for Rectangular Orthotropic HoneycombSandwich Panels with All Edges Simply Supported[J]. Journal of Vibration and Shock, 2012, 31(9): 73-77,8