轨道车辆用L型压电俘能结构发电模型及分析  

Power Generation Model and Analysis of L-shaped Piezoelectric Energy Harvester for Railway Vehicle

作　　者：许承洁 丁亚琦 彭乐乐 郑树彬[1] 钟倩文 XU Chengjie;DING Yaqi;PENG Lele;ZHENG Shubin;ZHONG Qianwen(College of Urban Rail Transportation,Shanghai University of Engineering Science,Shanghai 201620;Shanghai Metro Maintenance Guarantee Co.,Ltd.Vehicle Branch,Shanghai 200031)

机构地区：[1]上海工程技术大学城市轨道交通学院,上海201620 [2]上海地铁维护保障有限公司车辆分公司,上海200031

出　　处：《计算机与数字工程》2023年第11期2531-2534,共4页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:51907117,51975347);上海市科技计划项目(编号:22010501600);上海申通地铁集团项目(编号:JS-KY20R013-3,2021CL-KY20R013-3-JYF-050)资助。

摘　　要：为了实现轨道车辆走行部传感感知设备的自驱动式供电,针对L型压电俘能结构的发电特性进行建模分析及研究,通过对其安装位置进行受力分析,建立了压电俘能结构发电模型。为了验证验证模型的有效性,利用COMSOL有限元软件搭建了仿真模型,并与理论模型进行对比,结果表明前六阶输出功率相对误差均小于3%,验证了发电模型的正确性。In order to realize self-driven power supply of railway vehicle detection and sensing equipment,the power genera⁃tion characteristics of L-shaped piezoelectric energy harvester are modeled and studied,and the power generation model of piezo⁃electric energy harvester is established by force analysis of its installation position.COMSOL finite element software is used to com⁃pare the theoretical model.The relative errors of the first six orders of output power are all less than 3%,which verifies the correct⁃ness of the power generation model.

关 键 词：轨道车辆 自发电传感 L型压电俘能结构 发电模型 

分 类 号：O141.4[理学—数学]