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.


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    Title :

    Pressurized magnetorheological dampers for train suspension


    Contributors:

    Conference:

    Smart Structures and Materials 2005: Damping and Isolation ; 2005 ; San Diego,California,United States


    Published in:

    Publication date :

    2005-05-16





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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