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Proceedings Paper

Design and analysis of a magnetorheological damper for train suspension
Author(s): Yiu-Kee Lau; Wei-Hsin Liao
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Paper Abstract

The development of high-speed railway vehicles has been a great interest of many countries because high-speed trains have been proven as an efficient and economical transportation means while minimizing air pollution. However, the high speed of the train would cause significant car body vibrations. Thus effective vibration control of the car body is needed to improve the ride comfort and safety of the railway vehicle. Various kinds of railway vehicle suspensions such as passive, active, and semi-active systems could be used to cushion passengers from vibrations. Among them, semi-active suspensions are believed to achieve high performance while maintaining system stable and fail-safe. In this paper, it is aimed to design a magnetorheological (MR) fluid damper, which is suitable for semi-active train suspension system in order to improve the ride quality. A double-ended MR damper is designed, fabricated, and tested. Then a model for the double-ended MR damper is integrated in the secondary suspension of a full-scale railway vehicle model. A semi-active on-off control strategy based on the absolute velocity measurement of the car body is adopted. The controlled performances are compared with other types of suspension systems. The results show the feasibility and effectiveness of the semi-active train suspension system with the developed MR dampers.

Paper Details

Date Published: 29 July 2004
PDF: 12 pages
Proc. SPIE 5386, Smart Structures and Materials 2004: Damping and Isolation, (29 July 2004); doi: 10.1117/12.540248
Show Author Affiliations
Yiu-Kee Lau, Chinese Univ. of Hong Kong (Hong Kong China)
Wei-Hsin Liao, Chinese Univ. of Hong Kong (Hong Kong China)

Published in SPIE Proceedings Vol. 5386:
Smart Structures and Materials 2004: Damping and Isolation
Kon-Well Wang, Editor(s)

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