An innovative structure for a heavy haul coupler with an arc surface contact and restoring bumpstop is proposed. This coupler has a small lateral force at a small yaw angle and a limitable yaw angle to ensure an allowable coupler lateral force under intense compressive force. The main structural characteristic of the combined contact coupler is a lateral movable follower with an appropriate friction coefficient of 0.06–0.08 and a slide block with a single freedom of longitudinal movement. In order to verify and simulate the performances, a multi-body dynamics model with four heavy haul locomotives and three detailed couplers was established to simulate the process of emergency braking. In addition, the coupler yaw instability and wheel set lateral forces were tested in order to investigate the effect of relevant parameters on the coupler performances. The combined contact coupler is suitable for heavy haul train for a good dynamic performance.


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    Titel :

    Dynamic performances of an innovative coupler used in heavy haul trains


    Beteiligte:
    Yao, Yuan (Autor:in) / Zhang, Xiaoxia (Autor:in) / Zhang, Hongjun (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 52 , 10 ; 1288-1303


    Erscheinungsdatum :

    2014


    Format / Umfang :

    16 Seiten, 15 Bilder, 4 Tabellen, 17 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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