新型双方向压电振动能量收集装置的设计与仿真  

Design and Simulation of a new Type of Bidirectional Piezoelectric Vibration Energy Collector

作　　者：孙枫磊 沈辉[1] 曲鹏超 丁晓亮 张骁 SUN Feng-lei;SHEN Hui;QU Peng-chao;DING Xiao-liang;ZHANG Xiao(School of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学机电工程学院,青岛266071

出　　处：《青岛大学学报（自然科学版）》2020年第1期12-17,共6页Journal of Qingdao University(Natural Science Edition)

基　　金：山东省自然科学基金(批准号:ZR2017MEE039)资助。

摘　　要：为了获取空间内各个方向的振动能量,设计了一种新型双方向压电振动能量收集装置,在非线性压电能量收集装置的基础上,通过悬臂梁z方向振动和磁性滚筒x方向的振动以及绕x方向的摇摆来获取多方向的振动能量。利用ANSYS对该模型建模与仿真得到瞬态分析下的系统输出电压与激励频率的对应关系,发现新型压电振动能量收集装置不仅降低了系统的共振频率,而且系统的有效响应频带拓宽了210%。In order to obtain the vibration energy in all directions,a novel bidirectional piezoelectric vibration energy harvester was designed.Based on the nonlinear piezoelectric energy harvester,the Z-direction vibration of the cantilever beam and the X-direction vibration of the magnetic roller were performed.Swing around the X-direction to obtain vibration energy in multiple directions.The model is modeled by ANSYS and the corresponding relationship between the system output voltage and the excitation frequency under transient analysis is obtained.It is found that the new piezoelectric vibration energy harvester reduces the resonance frequency of the system,and an operating bandwidth of the system is widened by 210%.

关 键 词：压电效应 振动能量收集 ANSYS 有限元分析 

分 类 号：TN384[电子电信—物理电子学]