噪声与振动控制2019，Vol.39Issue(2)：42-46,5.DOI:10.3969/j.issn.1006-1355.2019.02.008
基于Euler Bernoulli理论的压电系统集中参数模型修正
Modification of Lumped-parameter Model of Piezoelectric Systems based on Euler Bernoulli Theory
摘要
Abstract
The Euler-Bernoulli beam vibration model is introduced for the limitation of the lumped-parameter model of cantilever structures in piezoelectric energy capture systems. The relative displacement transfer rates of the Euler-Bernoulli beam model and the lumped-parameter model under base excitation are analyzed. The results show that the relative error of the transfer rate peak value resulted from the lumped-parameter model in predicting the relative motion at the tip of the beam is very large. Then, the displacement transfer functions near the first-order modal of the two models are analyzed theoretically. According to the results, the lumped-parameter model is modified. The simulation and finite element analysis results show that the peak value of the relative displacement transmissibility of the modified lumped-parameter model agrees well with the Euler Bernoulli model in low-order modes.关键词
振动与波/集中参数模型/Euler Bernoulli模型/相对位移传递率/修正Key words
vibration and wave/ lumped-parameter model/ Euler Bernoulli model/ relative displacement transfer rate/modification分类
机械制造引用本文复制引用
宋伟志,周辉,张晨骏,陈智勇,赵海军,岳遂录..基于Euler Bernoulli理论的压电系统集中参数模型修正[J].噪声与振动控制,2019,39(2):42-46,5.基金项目
国家自然科学基金联合基金资助项目(U1604141) （U1604141）
河南省自然科学基金资助项目(162300410197) （162300410197）
河南省科技攻关资助项目(182102310043) （182102310043）
洛阳理工学院预研资助项目(2017YZY13) （2017YZY13）
