期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 147, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2020.107071
关键词
Negative stiffness; MR fluid; MR damper; Semi-active suspension; Vibration control
资金
- ARC Discovery Project [DP150102636]
- ARC Linkage Project [LP150100040]
- JSPS [20K14688, 19F19712, 19K23476]
- Grants-in-Aid for Scientific Research [19K23476, 19F19712, 20K14688] Funding Source: KAKEN
Active suspensions have excellent performance in reducing vibrations, but have high power consumption, cost, and potential instability issues. Semi-active suspensions are simple and stable, but do not provide equivalent performance. This new semi-active suspension with negative stiffness component using MR damper provides vibration-reduction performance comparable to active systems, avoiding the disadvantages of active control.
The group of active suspensions with controllable actuating force is noted with their excellent performance in reducing vibrations, however, their demanding requirements for high power consumption and high cost as well as the highly potential instability issue have hindered their practical usage. Semi-active suspensions with controllable stiffness or damping are simple, stable and cost-efficient, but they cannot provide equivalent performance with active suspensions. By incorporating the negative stiffness mechanism into the semi-active suspension using a magnetorheological (MR) damper, this paper provides a solution to improving the vibration-reduction performance of the semi-active suspensions to the level achievable by active suspensions while avoiding the disadvantages of active control. The experimental results demonstrated that the new suspension has brought better vibration-reduction performance than the passive suspension and the conventional MR suspension, and that the vibration reduction performance is comparable with that of some of the active systems reported. Therefore, this new semi-active suspension using MR damper with negative stiffness component can be considered as a new generation of vibration control method given that it has led to a great advancement in semi-active vibration control technology. (C) 2020 Elsevier Ltd. All rights reserved.
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