• CN：11-2187/TH
• ISSN：0577-6686

• 运载工程 •

### 自供电式汽车磁流变减振器特性研究*

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

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.