非等长复合压电振子的优化与仿真分析  

Optimization and Simulation of Non-equal Length Composite Piezoelectric Oscillator

作　　者：许东京[1] 叶明[1] 周成锋[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械与电子》2012年第1期10-13,共4页Machinery & Electronics

摘　　要：利用ANSYS软件建立了悬臂梁结构的模型,采用了工程中常用的模型,即非等长复合压电振子模型.设计了一种呈阵列分布的多圆孔基板材料压电振子,通过仿真分析,该结构的压电振子在尺寸与外加载荷一定的情况下,输出电压较优化前提高了14.1%,同时其固有频率与自身质量均较优化前有所降低.最后仿真结果也说明了这种多圆孔压电振子对于提高能量转换效率的可行性和有效性.Using ANSYS software to establish the model of piezoelectric cantilever beam which the length and the width between piezoelectric and base plate is not equal.There are many multi-hole arrays in the piezoelectric vibrator＇s base plate,through the simulation shows that the output voltage increase 14.1% than before when the dimension and extra force are not changed,besides,the natural frequency and its quality decrease.Simulation result also shows that the model can improve energy conversion efficiency for the feasibility and effectiveness.

关 键 词：复合压电振子 电压 ANSYS 优化仿真 

分 类 号：TN384[电子电信—物理电子学]