Performance robustness of a magnetorheological seat suspension to temperature variations using skyhook control

Nicholas L. Wilson; Norman M. Wereley; Young-Tai Choi; Gregory J. Hiemenz; Wei Hu

doi:10.1117/12.817739

6 April 2009 Performance robustness of a magnetorheological seat suspension to temperature variations using skyhook control

Nicholas L. Wilson, Norman M. Wereley, Young-Tai Choi, Gregory J. Hiemenz, Wei Hu

Author Affiliations +

Proceedings Volume 7288, Active and Passive Smart Structures and Integrated Systems 2009; 72880T (2009) https://doi.org/10.1117/12.817739
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

The harmonic steady-state responses of an MR seat isolator, designed and fabricated at the University of Maryland for the driver/commander seat of the Expeditionary Fighting Vehicle (EFV), are measured over a temperature range from 100°C to 1000°C, and the damper behavior is characterized using a variant of the nonlinear Bingham plastic model. The effect of damper self-heating on the model parameters is investigated and the trends with temperature variation are presented. Numerical simulations are carried out to investigate seat isolation performance across a broad frequency spectrum as temperature and payload vary. Conclusions are drawn about the performance robustness to temperature variations of the semi-active skyhook control algorithm typically utilized in vibration isolation problems.

Citation Download Citation

Nicholas L. Wilson, Norman M. Wereley, Young-Tai Choi, Gregory J. Hiemenz, and Wei Hu "Performance robustness of a magnetorheological seat suspension to temperature variations using skyhook control", Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 72880T (6 April 2009); https://doi.org/10.1117/12.817739

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