The steady state response analysis of the composite sandwich plate with viscoelastic core layer based on Kelvin model
YANG Kun1, MEI Zhi-yuan1, LI Hua-dong1
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1.College of Naval Architecture and Power, Naval Univ. of Engineering, Wuhan 430033, China
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History+
Received
Revised
Published
2012-03-06
2012-04-17
2013-04-15
Issue Date
2013-04-15
Abstract
Considering the viscoelastic core constitutive property as Kelvin model, a set of dynamical equations are derived for rectangular composite sandwich plate, the steady state response, for a composite sandwich plate with symmetric and orthotropic face layers under the simple support boundary condition, are obtained using Navier complete solution through the mode orthogonal principle. The analytic solutions of natural frequencies and mode loss factors are presented, the comparison of natural frequencies with FEM validates the analytic model. The influences of the shear modulus and thickness of the core on the dynamic performance of the composite sandwich plate are discussed. The astringency of steady state response of the solution is discussed, and the steady state response amplitudes at various frequency are acquired; the effect of the core loss factor on the response are analyzed. Result reveals that there is an optimal value of the design of the core material shear modulus；the steady state response is mostly determined by characteristics of the first mode.
YANG Kun;MEI Zhi-yuan;LI Hua-dong.
The steady state response analysis of the composite sandwich plate with viscoelastic core layer based on Kelvin model[J]. Journal of Vibration and Shock, 2013, 32(7): 88-92
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