| 压电俘能器磁力限幅结构设计与优化 |
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| 引用本文： | 刘海鹏,谭杨康,金磊.压电俘能器磁力限幅结构设计与优化[J].北京理工大学学报,2013,33(Z2):56-59. |
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| 作者姓名： | 刘海鹏 谭杨康 金磊 |
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| 作者单位： | 北京理工大学爆炸科学与技术国家重点实验室, 北京 100081;北京理工大学机电学院, 北京 100081;北京理工大学机电学院, 北京 100081 |
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| 基金项目： | 国家“八六三”计划项目（2013AA041104） |
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| 摘 要： | 针对悬臂梁式PZT俘能器的压电陶瓷片经过长时间循环振动后常常会出现裂纹甚至发生断裂的问题，提出了俘能器的磁力限幅结构方案. 采用ANSYS软件对原结构以及限幅以后的结构进行谐响应分析. 结果表明，磁力限幅方案有效地减小了结构中的最大应力. 对磁力限幅方案进行了优化，并通过仿真证明了优化后的结构在俘能器获得最佳俘能效果的前提下，可有效控制压电陶瓷片的疲劳断裂.
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| 关 键 词： | 压电俘能器 ANSYS 磁力限幅 |
| 收稿时间： | 2013/11/15 0:00:00 |
Design and Optimization on Magnetic Force Limiting Structure of Piezoelectric Energy Harvester |
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| LIU Hai-peng,TAN Yang-kang and JIN Lei.Design and Optimization on Magnetic Force Limiting Structure of Piezoelectric Energy Harvester[J].Journal of Beijing Institute of Technology(Natural Science Edition),2013,33(Z2):56-59. |
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| Authors: | LIU Hai-peng TAN Yang-kang and JIN Lei |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | In view of the problem that piezoelectric ceramic plate of cantilever PZT piezoelectric energy harvester may crack or rupture under cyclic vibration, the scheme of magnetic force limiting structure was developed. Harmonic response analysis for the original structure and limiting structure by ANSYS showed that the scheme effectively reduced the maximum stress in the structure. Finally, optimization for the magnetic force limiting scheme was done, and the results of simulation prove that the optimized structure can not only ensure optimum of harvesting energy, but also effectively control fatigue fracture of the piezoelectric ceramic plate. |
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| Keywords: | piezoelectric energy harvester ANSYS magnetic force limiting |
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