机电耦合有限单元及动力方程

Electromechanical Coupled Finite Element and Dynamic Equations

根据压电理论、弹性力学与Ｈａｍｉｌｔｏｎ原理，导出了反映机电耦合的压电有限元及动力方程的一般公式，建立了具有８个角节点与３个内节点的三维非协调模型，并编制了相应的计算程序．

Based on piezoelectricity,elastic mechanics and Hamilton's principle,the general electromechanical coupled dynamic equations of finite element models are formulated.To improve the accuracy,the non conforming model,a three dimensional eight node and three internal node isopara metric brock element,is implemented for the analysis.