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A new state observer-based vibration control for a suspension system with magnetorheological damper
Vehicle System Dynamics ( IF 3.6 ) Pub Date : 2021-06-20 , DOI: 10.1080/00423114.2021.1942508
Kun-Yung Chen

A new state observer-based vibration control strategy for the suspension system equipped with magnetorheological (MR) damper is proposed in this paper. Firstly, the Bouc-Wen model is implemented to fit the hysteresis phenomenon of the MR damper. A new dynamic model is successfully formulated including the Bouc-Wen model and electrical equation. According to the energy conservation law, an adjustable current is designed as the control object to adjust the characteristics of the MR damper to absorb the external input energy. Then, the current is assumed as an unavailable state for the suspension system, a supplemental state observer (SSOB) including the correction function and adaptation law is proposed to estimate it. Finally, a supplemental state observer-based sliding mode control (SSOBSMC) integrated with SSOB and sliding mode control (SMC) is proposed to estimate the unavailable current and perform robust vibration control, simultaneously. From the simulation results, the proposed SSOB shows outstanding state estimation ability for the suspension system. The SSOBSMC also performs outstanding state estimation ability and robust vibration control performance, simultaneously.



中文翻译:

一种新的基于状态观测器的磁流变阻尼悬架系统振动控制

本文提出了一种基于状态观测器的新型磁流变(MR)阻尼器悬架系统振动控制策略。首先,实现了Bouc-Wen模型来拟合MR阻尼器的滞后现象。成功建立了一个新的动态模型,包括 Bouc-Wen 模型和电学方程。根据能量守恒定律,设计一个可调电流为控制对象,调节磁流变阻尼器吸收外界输入能量的特性。然后,将电流假设为悬架系统的不可用状态,提出了一种包含校正函数和自适应律的补充状态观测器(SSOB)对其进行估计。最后,提出了一种集成了 SSOB 和滑模控制 (SMC) 的基于补充状态观测器的滑模控制 (SSOBSMC) 来估计不可用电流并同时执行鲁棒振动控制。从仿真结果来看,所提出的 SSOB 显示出出色的悬架系统状态估计能力。SSOBSMC 还同时具有出色的状态估计能力和稳健的振动控制性能。

更新日期:2021-06-20
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