10 April 2013 An improved polynomial dynamic model of a magnetorheological fluid damper under impact loadings
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Abstract
With fast response time and adjustable damping properties, magnetorheological (MR) dampers have shown their capabilities in reducing vibration of structures when subjected to impact loadings. In order to achieve the best performance of MR dampers for vibration control, a suitable semi-active control method is desired. Understanding and modeling of the dynamic behavior of MR dampers is crucial in development of control strategies. This paper presents both theoretical and experimental studies on modeling MR dampers under impact loadings. An improved polynomial model with simple form, which is easy to be solved inversely and suitable for implement in real time control, is proposed. A group of experimental tests are performed to evaluate the accuracy of the proposed model. The results show that the proposed model can well describe the relationship of damper velocity and its output force during buffering motion.
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Zhaochun Li, Jiajia Zheng, Jeong Hoi Koo, Jiong Wang, "An improved polynomial dynamic model of a magnetorheological fluid damper under impact loadings", Proc. SPIE 8688, Active and Passive Smart Structures and Integrated Systems 2013, 86881C (10 April 2013); doi: 10.1117/12.2009653; https://doi.org/10.1117/12.2009653
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