基于ANSYS的圆形压电振子的仿真分析与研究  

ANSYS-based simulation analysis and study of circular piezoelectric vibrators

作　　者：王隶梓[1] 

机构地区：[1]长春工程学院机械学院,长春130025

出　　处：《起重运输机械》2010年第2期55-59,共5页Hoisting and Conveying Machinery

摘　　要：利用ANSYS软件建立了压电振子的有限元模型,对圆形压电振子的基板和压电陶瓷片的材料参数、结构参数对其变形的影响进行了分析和对比,根据仿真结果,确定了作为泵腔动力元件的圆形压电振子的参数。对选定的圆形压电振子进行了静态特性、阻抗特性和幅频特性的实验测试,研究了不同波形、不同电压、不同频率驱动信号对振子变形的影响。通过对比实验测试结果和有限元仿真结果,验证了有限元模型的可靠性,为优化压电晶片驱动器结构参数提供了有效的方法。Upon establishing an FEM model for piezoelectric vibrators using ANSYS software, the essay analyzes the impact of the material and structural parameters of the circular piezoelectric vibrator＇s base plate, as well as the impact of those of its piezoelectric ceramic plate, on its deformation, and studies how the variation of these parameters would affect the deformation. Based on the simulation result thus obtained, the essay further determines parameters for the circular piezoelectric vibrator, which goes on to be selected as a hydraulic power component in a pump chamber. Then, the essay conducts testing on the selected piezoelectric vibrator for its static, impedance and amplitude-frequency characteristics, and studies the impact of different wave forms, different voltages and different frequency drive signals on the vibrator＇s deformation. Through comparing test results and FEM simulation results, the essay verifies the FEM model＇s reliability and thereby proves the method discussed herein as an effective method for optimizing the piezoelectric crystal driver＇s structural parameters.

关 键 词：圆形压电振子 有限元 静态特性 阻抗特性 幅频特性 

分 类 号：TM22[一般工业技术—材料科学与工程]