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Proceedings Paper

Control of a 1/4 MR semi-active suspension system using a RC hysteresis model for MR damper
Author(s): Zhen-Ning Zhu; Xian-Xu Bai; Peng Chen; Fei-Long Cai; Li-Jun Qian
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Paper Abstract

Semi-active suspensions based on magnetorheological (MR) dampers are expected to innovate automotive suspension systems. However, the accuracy of the damping force models of MR dampers affects the control performance of MR semiactive suspension systems. Based on the experimental data of a self-developed MR damper, the parameters of a resistorcapacitor (RC) hysteresis model are identified. The obtained RC hysteresis model can describe and predict the hysteresis nonlinear damping force of the MR damper effectively. Further, the dynamic model of a 1/4 MR semi-active suspension system based on the MR damper is established, and a linear quadratic regulator (LQR) control strategy based on state feedback is designed. The performance of the 1/4 MR semi-active suspension system is simulated and analyzed in time and frequency domains.

Paper Details

Date Published: 15 March 2018
PDF: 12 pages
Proc. SPIE 10595, Active and Passive Smart Structures and Integrated Systems XII, 1059537 (15 March 2018); doi: 10.1117/12.2297172
Show Author Affiliations
Zhen-Ning Zhu, Hefei Univ. of Technology (China)
Xian-Xu Bai, Hefei Univ. of Technology (China)
Peng Chen, Hefei Univ. of Technology (China)
Fei-Long Cai, Hefei Univ. of Technology (China)
Li-Jun Qian, Hefei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10595:
Active and Passive Smart Structures and Integrated Systems XII
Alper Erturk, Editor(s)

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