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首页> 外文期刊>Applied Mathematical Modelling >Dynamic electromechanical behavior of a triple-layer piezoelectric composite cylinder with imperfect interfaces
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Dynamic electromechanical behavior of a triple-layer piezoelectric composite cylinder with imperfect interfaces

机译：具有不完美界面的三层压电复合材料圆柱体的动态机电行为

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摘要

The dynamic electromechanical behavior of a triple-layer piezoelectric composite cylinder with imperfect interfaces is investigated. The composite cylinder is constructed by two elastic layers and an embedded piezoelectric layer. A linear spring model is adopted to describe the weakness of imperfect interface. The exact analysis is performed by the state space method and normal mode expansion method. The determining procedure for the eigenfunction and the proof of the orthogonal property of the eigenfunction is presented for an imperfectly bonded triple-layer piezoelectric composite cylinder. The obtained solution is valid for analyzing the dynamic electromechanical behavior of composite cylinder with arbitrary thickness for both elastic and piezoelectric layers. Numerical results show that the weakness of imperfect interface has significant effect on the transient electromechanical responses of piezoelectric composite cylinder.
机译：研究了界面不完善的三层压电复合材料圆柱体的动态机电行为。复合圆柱体由两个弹性层和一个嵌入的压电层构成。采用线性弹簧模型来描述不完善界面的弱点。精确的分析是通过状态空间方法和正常模式扩展方法进行的。给出了不完全结合的三层压电复合材料圆柱体的本征函数确定过程和本征函数正交性的证明。所获得的解对于分析具有任意厚度的弹性和压电层的复合圆柱的动态机电行为是有效的。数值结果表明，不完善界面的弱点对压电复合材料圆柱体的瞬态机电响应具有显着影响。

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