There are excessive inter-car lateral vibrations of the current Chinese CRH1 high-speed train, so it is meaningful to improve the high-speed train dynamics by optimising its inter-vehicle suspension. Multi-body system (MBS) dynamics modelling of CRH1 high-speed train with inter-vehicle suspension was first performed in this study, then the MBS model was used to analyse the influential mechanism and the quantitative effects of inter-vehicle damper parameters on vehicle system dynamics, the design of experiment (DOE) approach was finally applied to optimise the inter-vehicle damper parameters. Simulation results showed that after the optimisation, there was a significant reduction in the inter-car lateral accelerations of CRH1 with a maximum rate of 20.1%, in addition, the severe lateral shock and oscillation, especially car roll acceleration, that are induced by aerodynamics when two high-speed trains pass each other were significantly suppressed with a maximum rate of 25%. Thus, the developed MBS model and the obtained optimisation result provide the basis for an engineering solution of the problem of excessive inter-car lateral vibrations of CRH1, the obtained knowledge of inter-vehicle damper parameter effects on high-speed train dynamics are valuable in the context of development of inter-vehicle suspensions for high-speed trains.


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    Title :

    Optimisation of an inter-vehicle damper for a high-speed train


    Additional title:

    VEHICLE SYSTEM DYNAMICS
    W. WANG ET AL.


    Contributors:
    Wang, Wenlin (author) / Wu, Zhongfa (author) / Liu, Shiping (author) / Wu, Yongming (author)

    Published in:

    Vehicle System Dynamics ; 62 , 10 ; 2703-2728


    Publication date :

    2024-10-02


    Size :

    26 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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