Vibration | |
Prescribed Performance Control-Based Semi-Active Vibration Controller for Seat Suspension Equipped with an Electromagnetic Damper | |
article | |
Junjie Zhao1  Pengfei Liu1  Dingxin Leng1  Haoyu Zhan1  Guangrui Luan1  Donghong Ning1  Jianqiang Yu2  | |
[1] College of Engineering, Ocean University of China;China Nanhu Academy of Electronics and Information Technology | |
关键词: semi-active; seat suspension; EMD; prescribed performance control; vibration control; | |
DOI : 10.3390/vibration6010019 | |
学科分类:土木及结构工程学 | |
来源: mdpi | |
【 摘 要 】
Seat suspension plays a vital role in improving riding comfort and protecting drivers’ health. This paper develops semi-active seat suspension that equips a controllable electromagnetic damper (EMD) and proposes a prescribed performance control-based semi-active vibration controller with experimental validation. The semi-active EMD mainly consists of a permanent magnet synchronous motor, a ball screw, a three-phase rectifier, and a controllable external resistor, which can vary its damping from 90 to 800 N· s / m by tuning the controllable external resistor in real-time. The EMD is applied to seat suspension, and a semi-active controller is proposed for the EMD seat suspension. In order to control the seat suspension vibration, a prescribed performance method is applied to obtain a desired control force and then a force-tracking strategy is designed to make the EMD track the desired control force. Finally, the semi-active seat suspension with the proposed controller is tested in experiments with different vibration conditions. The semi-active seat suspension performs excellently for the bump, sine wave and random vibration. The root mean square (RMS) acceleration, the frequency-weighted RMS acceleration and the acceleration’s fourth power vibration dose value were reduced by 17.5 %, 39.9 %, and 25.4 %, respectively, in the random vibration, compared with a passive system.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202307010002193ZK.pdf | 7584KB | download |