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Active damping of geometrically nonlinear vibrations of laminated composite plates using vertically reinforced 1-3 piezoelectric composites

机译:使用垂直增强的1-3压电复合材料对阻尼复合板的几何非线性振动进行主动阻尼

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摘要

This paper addresses the analysis of active constrained layer damping (ACLD) of geometrically nonlinear transient vibrations of laminated composite plates using vertically reinforced 1-3 piezoelectric composite (PZC) as the material of the constraining layer of the ACLD treatment. The Von Kármán type nonlinear strain-displacement relations and the first-order shear deformation theory (FSDT) are used for deriving the coupled electromechanical nonlinear finite element model. The Golla-Hughes-McTavish (GHM) method has been used to model the constrained viscoelastic layer of the ACLD treatment in the time domain. The numerical results indicate that the ACLD patches significantly improve the damping characteristics of the cross-ply and antisymmetric angle-ply plates for suppressing the geometrically nonlinear transient vibrations of the plates.
机译:本文讨论了使用垂直增强1-3压电复合材料(PZC)作为ACLD处理的约束层材料的层合复合板的几何非线性瞬态振动的主动约束层阻尼(ACLD)的分析。用VonKármán型非线性应变位移关系和一阶剪切变形理论(FSDT)推导了机电非线性有限元模型。 Golla-Hughes-McTavish(GHM)方法已用于在时域中对ACLD处理的约束粘弹性层进行建模。数值结果表明,ACLD贴片显着改善了交叉板和反对称角板的阻尼特性,从而抑制了板的几何非线性瞬态振动。

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