Damping Properties of Viscoelastic Laminated Plates with an Unconstrained Fiber-reinforced Layer
ICMTMA), 2011 Third International Conference(2011)
摘要
Applying the mixed layer wise theories and Ressiner’s mixed variational theorem, the dynamics equations of viscoelastic laminated plates were deduced and the numerical solutions for simple-support laminated plates were derived through Navier solutions. Computing the natural frequency and the loss factor in the plates corresponding to the lower-rank models and analyzing the viscoelastic layer' influence on the damping properties, the results show that the non-dimensional frequency and the loss factor will increase with higher Young’s modulus of a viscoelastic layer. Using a fiber-reinforced viscoelastic layer has little effect on the non-dimensional frequency, but can effectively improve the damping characteristic and reduce the resonance amplitude of transverse displacement.
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关键词
damping properties,dynamics equation,fiber-reinforced viscoelastic layer,simple-support laminated plate,non-dimensional frequency,viscoelastic laminated plate,loss factor,viscoelastic layer,natural frequency,navier solution,mixed layer,viscoelastic laminated plates,unconstrained fiber-reinforced layer,stress,resonant frequency,viscoelasticity,mathematical model,young s modulus,materials,damping,optical fiber
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