磁致伸缩式三稳态振动收集系统的设计及特性分析  

Design and Characteristic Analysis of Magnetostrictive Tristable Vibration Collecting System

作　　者：吴勋 刘慧芳[1,2] 王文国 许琦 赵璐瑶 刘占奇 常云龙 WU Xun;LIU Huifang;WANG Wenguo;XU Qi;ZHAO Luyao;LIU Zhanqi;CHANG Yunong(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China;Shenyang Collaborative Innovation Center for Multiple Energy Fields Composite Processing of Special Materials,Shenyang 110027,China;Beijing Automotive Research Institute Co.,Ltd.,Beijing 101300,China;Shenyang Jinfeng Special Cutting Tools Co.,Ltd.,Shenyang 110168,China;School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110870 [2]沈阳市特种材料多能场复合加工协同创新中心,辽宁沈阳110027 [3]北京汽车研究总院有限公司,北京101300 [4]沈阳金锋特种刀具有限公司,辽宁沈阳110168 [5]沈阳工业大学材料科学与工程学院,辽宁沈阳110870

出　　处：《仪表技术与传感器》2023年第10期15-19,27,共6页Instrument Technique and Sensor

基　　金：辽宁省教育厅重点项目(LJKZZ20220020);辽宁省教育厅科学研究项目(LQGD2020011);辽宁省研究生教育改革项目(LNYJG2022073);沈阳市“揭榜挂帅”项目(2022210101000827);沈阳市特种材料多能场复合加工协同创新中心项目(JG210027)。

摘　　要：传统的振动收集系统存在共振频率高、频带窄、电压低等缺点,基于永磁体间的非线性磁力设计一种磁致伸缩式三稳态振动收集系统。利用磁偶极子模型对系统的势能和永磁体间的非线性磁力进行仿真分析。通过实验将三稳态与传统结构和双稳态输出响应进行比较,对不同永磁体间距三稳态的输出电压进行实验测试,引入偏置磁场增加电压输出效果,当自由端与固定端永磁体间距为10 mm,固定端永磁体间距为16 mm,系统输出电压达到868 mV。结果表明:磁致伸缩式三稳态振动收集系统可以有效改善传统的振动能量收集器的采集能力。Traditional vibration collection systems have shortcomings such as high resonance frequency,narrow frequency band,and low voltage.Based on the nonlinear magnetic force between permanent magnets,a magnetostrictive tristable vibration collection system was designed.The magnetic dipole model was used to simulate and analyze the potential energy of the system and the nonlinear magnetic force between permanent magnets.By comparing the output response of the tristable with traditional structures and bistable structures through experiments,the output voltage of the tristable with different permanent magnet spacing was tested experimentally.A bias magnetic field was introduced to increase the voltage output effect.When the distance between the free end and fixed end permanent magnets was 10 mm,and the distance between the fixed end permanent magnets was 16 mm,the system output voltage reached 868 mV.The results show that the magnetostrictive tristable vibration collection system can effectively improve the collection ability of traditional vibration energy collectors.

关 键 词：振动收集系统 三稳态 磁致伸缩 偏置磁场 

分 类 号：TM271[一般工业技术—材料科学与工程]