Title: MR seat suspension for vibration control of a commercial vehicle

Authors: S.-B. Choi, Y.-M. Han

Addresses: Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon, 402–751, Korea. Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon, 402–751, Korea

Abstract: This paper presents vibration control of a commercial vehicle utilising a magnetorheological (MR) seat damper. A cylindrical type of MR seat damper is manufactured and its field-dependant damping forces are experimentally evaluated. The MR seat damper is then incorporated with a full-vehicle model in which conventional passive dampers are installed for primary and cabin suspension, respectively. After formulating the governing equations of motion of the full-vehicle model, a semi-active skyhook controller is realised by adopting a hardware-in-the-loop-simulation (HILS) methodology. Control responses such as acceleration at the driver|s seat are evaluated under both bump and random road conditions.

Keywords: hardware-in-the-loop-simulation; seat suspension; skyhook controller; MR fluid; vibration control; automobile industry.

DOI: 10.1504/IJVD.2003.003184

International Journal of Vehicle Design, 2003 Vol.31 No.2, pp.202-215

Published online: 14 Jul 2003 *

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