Cymbal换能器的有限元分析仿真技术研究

采用了有限元分析方法、借助ANSYS软件设计了Cymbal换能器，给出了2种有效的流体单元划分方法；通过仿真计算，分析了金属端冒的不同尺寸对有效机电耦合系数、机械品质因素、节点位移及谐振频率的影响，从而设计出最优尺寸的Cymbal换能器，并对其进行了3阶模态振型和谐响应动力学分析，解决了该换能器旋转对称面上存在跃变的应力和应变给设计工作带来的困难及理论上难以解决的问题。

Finite Element Analysis and Dynamic Simulation of Cymbal Transducer

The Cymbal transducer was designed with the finite element method and ANSYS. Two potent methods for segmenting fluid elements were presented, and the influences of different endcap sizes on electromechanical coupling coefficient, mechanical factor, nodal displacement and resonance frequency were analyzed by means of ANSYS simulation. Moreover, the Cymbal transducer with optimum size was designed and dynamically analyzed via three vibration modes and resonance frequencies. Therefore, the difficulty in design of the Cymbal transducer due to jump stress and strain on the rotary symmetric face has been solved theoretically.