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Proceedings Paper

Temperature-dependent skyhook control of HMMWV suspension using a fail-safe magnetorheological damper
Author(s): Yanming Liu; Faramarz Gordaninejad; Cahit A. Evrensel; Umit Dogruer; Moon-Su Yeo; Enver Sinan Karakas; Alan Fuchs
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Paper Abstract

In this paper, a theoretical study is presented to examine the behavior a fail-safe magneto-rheological fluid (MRF) damper based on a temperature compensated skyhook strategy for a quarter car model of a High Mobility Multi-purpose Wheeled Vehicle (HMMWV). A fail-safe MRF damper is a controllable semi-active device that in the event of power or control system failure behaves as a passive damper with certain viscous damping capacity. The damper's viscous force changes significantly with temperature. Vehicle suspension system is required to operate in a wide range of temperature. The temperature effects on the performance of MRF damper should be considered in the control system design. Displacement and acceleration response of the vehicle sprung mass for the quarter car model are discussed at the operating temperature range of a MRF damper. Simulation results under off-road excitation demonstrated that the compensated skyhook control system improves MRF damper performance in reducing the sprung mass displacement and acceleration compared to the uncompensated skyhook control system.

Paper Details

Date Published: 14 August 2003
PDF: 9 pages
Proc. SPIE 5054, Smart Structures and Materials 2003: Industrial and Commercial Applications of Smart Structures Technologies, (14 August 2003); doi: 10.1117/12.483887
Show Author Affiliations
Yanming Liu, Univ. of Nevada/Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada/Reno (United States)
Cahit A. Evrensel, Univ. of Nevada/Reno (United States)
Umit Dogruer, Univ. of Nevada/Reno (United States)
Moon-Su Yeo, Inha Technical Junior College (South Korea)
Enver Sinan Karakas, Univ. of Nevada/Reno (United States)
Alan Fuchs, Univ. of Nevada/Reno (United States)

Published in SPIE Proceedings Vol. 5054:
Smart Structures and Materials 2003: Industrial and Commercial Applications of Smart Structures Technologies
Eric H. Anderson, Editor(s)

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