基于有限元的压电风扇建模与仿真分析  

Modeling and Simulation Analysis of Piezoelectric Fan Based on Finite Element

作　　者：郭修宇 王海峰[1] 李海宁 王世龙 王乐生 李蒙[1] GUO Xiuyu;WANG Haifeng;LI Haining;WANG Shilong;WANG Lesheng;LI Meng(School of Electromechanic Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院

出　　处：《青岛大学学报（工程技术版）》2019年第4期44-47,共4页Journal of Qingdao University(Engineering & Technology Edition)

基　　金：国家自然科学基金资助项目（51405255）;山东省高等学校科技计划资助项目（J12LN95）;山东省科技发展计划项目资助(2012YD04038)

摘　　要：为深入研究压电风扇的物理特征,本文采用ANSYS Workbench,建立压电风扇的简化模型,并对压电风扇的多种参数变化进行模拟仿真,实现对压电风扇机械特性的模态分析。仿真结果表明,保持压电风扇其它参数不变,振动薄片在一阶模态下振动,其最大的振幅随着振动薄片长度的增加而减小,压电风扇的最大振幅均出现在振动薄片的自由端,而且振动薄片的振动行为会随着振动阶数的增加而增加;随着振动薄片长度的增加,压电风扇的振动频率在不同阶数的振动下均减小;相同长度的振动薄片,在前三阶模态时,压电风扇的振动频率随着阶数的增加而增大。该研究揭示了压电风扇激励振动薄片的振动规律。In order to study the physical characteristics of the piezoelectric fan in depth,this paper uses ANSYS Workbench to establish a simplified model of the piezoelectric fan,and simulates the various parameters of the piezoelectric fan to realize the modal analysis of the mechanical characteristics of the piezoelectric fan.The simulation results show that the other parameters of the piezoelectric fan are kept unchanged,and the vibration plate vibrates in the first-order mode.The maximum amplitude decreases with the increase of the length of the vibration plate.The maximum amplitude of the piezoelectric fan appears in the vibration plate.The free end,and the vibration behavior of the vibrating sheet increases with the increase of the vibration order;as the length of the vibrating sheet increases,the vibration frequency of the piezoelectric fan decreases under different orders of vibration;the same length of the vibrating sheet in the first three modes,the vibration frequency of the piezoelectric fan increases with the increase of the order.This study reveals the vibration law of a piezoelectric fan that excites a vibrating sheet.

关 键 词：逆压电效应 压电风扇 ANSYS WORKBENCH 模态分析 

分 类 号：TM925.11[电气工程—电力电子与电力传动] TN384[电子电信—物理电子学]