圆盘形压电双晶片结构发电特性建模及仿真研究  

Modeling and Simulation Research on Power Generation Characteristics of Disc-shaped Piezoelectric Bimorph Structure

作　　者：张旭东 张玮东 柴晓冬[1] 彭乐乐 郑树彬[1] 叶智杨 ZHANG Xudong;ZHANG Weidong;CHAI Xiaodong;PENG Lele;ZHENG Shubin;YE Zhiyang(College of Urban Rail Transportation,Shanghai University of Engineering Science,Shanghai 201620;Vehicle Branch,Shanghai Metro Maintenance Guarantee Co.,Ltd.,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8期1903-1907,共5页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:51907117,51975347);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零碳传感自供电技术,针对圆盘形压电双晶片结构进行发电特性建模及仿真研究,基于欧拉-伯努力理论与基尔霍夫定律,构建结构频率响应模型与输出功率模型,得到了结构几何参数与固有频率及输出功率之间的关系,并利用COMSOL软件建立仿真模型验证了模型的正确性。结果表明,圆盘形压电双晶片结构在前三阶处固有频率及输出功率理论值与仿真值偏差均在3%以内。In order to realize the zero-carbon sensing self-powered technology of the rail vehicle running part,the power generation characteristics modeling and simulation study of the disc-shaped piezoelectric bimorph structure are carried out,and the structure is constructed based on the Euler-Beuer Effort theory and Kirchhoff's law.The frequency response model and the output power model are used to obtain the relationship between the geometrical parameters of the structure,the natural frequency and the output power,and a simulation model is established using COMSOL software to verify the correctness of the model.The results show that the disc-shaped piezoelectric bimorph structure at the second and third orders of the natural frequency and the theoretical value of the output power and the deviation of the simulated value are all within 3%.

关 键 词：零碳传感 压电发电 频率响应 输出功率 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]