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Proceedings Paper

Pressurized magnetorheological dampers for train suspension
Author(s): Yiu-Kee Lau; Wei-Hsin Liao
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Paper Abstract

The objective of this paper is to develop a pressurized magnetorheological (MR) damper which is suitable for train suspension in order to improve the ride comfort of passengers. A double-ended MR damper is designed and fabricated. The custom-made MR damper is pressurized in order to eliminate the force-lag problem. Then the MR damper is mathematically modeled with experimental validation and then integrated with the railway vehicle model. An on-off semi-active control strategy based on the measurement of the absolute lateral velocity of the car body is adopted for the semi-active suspension system. The performances of the semi-active train suspension system using MR dampers are evaluated by comparing with the passive, passive-on-H and passive-on-L suspension systems. The results indicate that when the human sensation of ride comfort is considered, the semi-active suspension with the developed MR dampers can substantially improve the ride quality of the passengers.

Paper Details

Date Published: 16 May 2005
PDF: 12 pages
Proc. SPIE 5760, Smart Structures and Materials 2005: Damping and Isolation, (16 May 2005); doi: 10.1117/12.598638
Show Author Affiliations
Yiu-Kee Lau, The Chinese Univ. of Hong Kong (Hong Kong China)
Wei-Hsin Liao, The Chinese Univ. of Hong Kong (Hong Kong China)

Published in SPIE Proceedings Vol. 5760:
Smart Structures and Materials 2005: Damping and Isolation
Kon-Well Wang, Editor(s)

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