Train simulation has been adapted in this paper to model the behaviour of indexing operations in ore car tippler operations. An important consideration in simulations at these low speeds (less than 4 km/h) is the increased rolling resistance transitioning from stationary conditions to motion. Most formulations of rolling resistance equations do not include this range although there are empirical values in some railway standards. The indexer control utilised here has a target trapezoidal velocity profile. The indexer to train connection was modelled as a stiff linear spring, a damper and a gap element. A sensitivity analysis was completed considering variations in wagon connections including wedge static friction, preload, coupling slack and tippler slack. Track topography including downhill grades of 0.1% and 0.2% and a valley profile were also investigated. Results showed high sensitivity to draft gear parameters of static friction and preload, but minimal benefit from downhill grades and changes in coupling slack.


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    Title :

    Examining longitudinal train dynamics in ore car tipplers



    Published in:

    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    55.20 / 50.32 / 50.32 Dynamik, Schwingungslehre / 55.20 Straßenfahrzeugtechnik
    Local classification TIB:    535/7020



    Truck tipplers

    Engineering Index Backfile | 1937


    End rocking tipplers for railway wagons

    Engineering Index Backfile | 1953


    Examining longitudinal train dynamics in ore car tipplers

    Cole, Colin / Spiryagin, Maksym / Bosomworth, Chris | Taylor & Francis Verlag | 2017



    Longitudinal train dynamics

    Spiryagin, Maksym / Wu, Qing / Cole, Colin | Taylor & Francis Verlag | 2017