气动系统换向冲击压电俘能特性  

Piezoelectric Energy Capture Characteristics of Reversing Impact in Pneumatic System

作　　者：张添 史伟杰 杨传辉 高公如 叶桂友 ZHANG Tian;SHI Wei-jie;YANG Chuan-hui;GAO Gong-ru;YE Gui-you(School of Mechanical and Electrical Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266061;Shandong Changlin Machinery Group Co. , Ltd. , Linyi, Shandong 276799)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061 [2]山东常林机械集团股份有限公司,山东临沂276799

出　　处：《液压与气动》2022年第1期51-57,共7页Chinese Hydraulics & Pneumatics

基　　金：山东省自然科学基金(ZR2019BEE032)。

摘　　要：为充分利用气动系统管路产生的压力冲击,提出了一种基于压电材料的正压电效应压电俘能器,搭建了基于该俘能器的实验测试系统,研究了气体压力、换向时间对该俘能器俘能特性的影响。结果表明,在气体动载荷激励下,压电俘能器内的压电片产生了弯曲形变,俘能电压与形变变化密切相关;气体压力值增大时,峰值电压、峰值功率升高;而随着换向时间的改变,峰值电压、峰值功率未有显著变化。In order to make full use of the pressure impact produced by the pneumatic system,a piezoelectric energy harvester based on the positive piezoelectric effect of piezoelectric materials is proposed.An experimental test system based on the energy harvester is built,and the effects of gas pressure and switching time on the energy capture characteristics of the energy harvester is studied.The results show that the piezoelectric sheet in the piezoelectric energy harvester produces bending deformation,and the energy harvesting voltage is closely related to the deformation under the excitation of gas dynamic load.When the gas pressure increases,the peak voltage and peak power will increase.But with the change of switching time,the peak voltage and peak power do not change significantly.

关 键 词：压电俘能 峰值电压 峰值功率 气体压力 换向时间 

分 类 号：TH138[机械工程—机械制造及自动化]