• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2016, Vol. 52 ›› Issue (20): 83-91.doi: 10.3901/JME.2016.20.083

• 运载工程 • 上一篇    下一篇

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自供电式汽车磁流变减振器特性研究*

董小闵, 彭少俊, 于建强   

  1. 重庆大学机械传动国家重点实验室 重庆 400044
  • 出版日期:2016-10-20 发布日期:2016-10-20
  • 作者简介:

    董小闵，男，1975年出生，博士，教授。主要研究方向为智能机械结构系统及智能控制。

    E-mail：xmdong@cqu.edu.cn

  • 基金资助:
    * 国家自然科学基金(51275539， 51675063)、中央高校基金(CDJZR14115501)和重庆市研究生科研创新资助项目; 20150826收到初稿，20160523收到修改稿;

Study on Self-powered Magnetorheological Damper Characteristics for Automobile

DONG Xiaomin, PENG Shaojun, YU Jianqiang   

  1. State Key Laboratory of Mechanical Transmission， Chongqing University， Chongqing 400044
  • Online:2016-10-20 Published:2016-10-20

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摘要：

针对现有磁流变减振器自供电装置结构复杂、机电转换效率低能等问题，提出一种运用滚珠丝杠驱动的盘式永磁发电机的能量采集器。介绍盘式永磁发电机的结构和原理;运用software Maxwell 3D软件分析发电机气隙磁密，理论计算出发电机基本机电能量转换关系;建立了盘式发电机的电磁有限元模型，用仿真软件对所设计的电机空载负载输出电压进行研究;制作了样机，对盘式永磁发电机分别进行定转速激励和正弦激励测试其机电转换性能;研究带有能量采集器的磁流变减振器在正弦激励下阻尼力特性。试验结果表明该盘式永磁电机能够为磁流变减振器提供所需的电能。

关键词: 滚珠丝杠, 盘式永磁发电机, 自供电, 磁流变减振器

Abstract:

To overcome the problems such as complex structure, low efficiency of electromechanical conversion in the current self-powered device for magnetorheological (MR) damper, an energy harvester of a disk permanent generator driven by the ball screw is proposed. The structure and principles of the disk permanent generator is studied. The software Maxwell 3D is applied to analyze gap flux density of the disk permanent generator, the basic electromechanical energy conversion relations is theoretically calculated. The electromagnetic finite element model of the disk permanent generator is established and the software of Maxwell 3D is applied to calculate the output voltage of the generator under load and idle load. A generator prototype is fabricated and tested under constant speed excitations and sinusoidal excitations for the purpose of testing the performance of electromechanical conversion. The damping characteristics of the MR damper under sinusoidal inputs is investigated. The results show that the harvesting energy of the proposed generator can meet the electrical energy requirement of the MR damper.

Key words: ball screw, disk permanent generator, self-powered, MR damper

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