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Proceedings Paper

Performance robustness of a magnetorheological seat suspension to temperature variations using skyhook control
Author(s): Nicholas L. Wilson; Norman M. Wereley; Young-Tai Choi; Gregory J. Hiemenz; Wei Hu
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Paper 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.

Paper Details

Date Published: 7 April 2009
PDF: 10 pages
Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 72880T (7 April 2009); doi: 10.1117/12.817739
Show Author Affiliations
Nicholas L. Wilson, Univ. of Maryland, College Park (United States)
Norman M. Wereley, Univ. of Maryland, College Park (United States)
Young-Tai Choi, Univ. of Maryland, College Park (United States)
Gregory J. Hiemenz, Techno-Sciences, Inc. (United States)
Wei Hu, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 7288:
Active and Passive Smart Structures and Integrated Systems 2009
Mehdi Ahmadian; Mehrdad N. Ghasemi-Nejhad, Editor(s)

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