【摘要】 利用压电陶瓷的本构方程和弹性动力学方程建立了压电驱动问题机电耦合场的有限元模型,基于有限元程序自动生成平台FEPG,通过编写元件化程序,得到此类结构的有限元计算程序。对纵弯超声电机压电振子的动力学特性进行了分析,结果表明该程序可以用于压电驱动类结构的的动力学数值计算。更多还原

【Abstract】 Combining the constitutive equation of piezoelectric ceramic with elastic-dynamical Equation ,the finite element model for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established.Based on FEPG,obtain the finite element program by writing element program.Detailed calculation of the dynamics of a Longitudinal-Transverse piezoelectric resonators is made ,the results show the FEM program can be used for the dynamics simulation for piezoelectric driving structure.更多还原