Train collision-induced derailment may result in serious casualties. This study investigates the railway vehicle derailment behaviour and explores the derailment causes in train-to-train impacts. A train-track coupled dynamic model is developed and validated. The lateral (Yde) and vertical (Zde) relative displacements of the wheel/rail pair are used for the derailment evaluation. The results show that the wheelset jumping derailment and the saw-tooth buckling mode may occur during the high-speed collisions. Derailment is mainly caused by car body yawing rotation and wheelset lateral and vertical displacements. Yawing and pitching motions of car body influence wheelset displacement significantly. Vehicles with the higher velocity generate more severe derailment behaviour. Under circumstance of the same train impact energy, the higher vehicle mass and greater car numbers have the stabilizing influence for reducing the derailment risk. Increasing the force on the main energy-absorbing structure which is set in the front-end crushing zone of a vehicle to dissipate the train impact energy and the damping coefficient of the secondary yaw damper can decrease the derailment risk. The train safety operation areas and derailment boundaries indicate that the reliability of the Yde criterion is higher.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Dynamic analysis of railway vehicle derailment mechanism in train-to-train collision accidents


    Beteiligte:
    Hou, Lin (Autor:in) / Peng, Yong (Autor:in) / Sun, Dong (Autor:in)


    Erscheinungsdatum :

    2021-09-01


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Portable train safety belt for derailment accidents

    Europäisches Patentamt | 2021

    Freier Zugriff

    Portable train safety belt for derailment accidents

    LEE HOON / LEE HYANG EE / PARK DUGKEUN et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Train Derailment Investigation

    International Association of Railway Operating Officers | British Library Conference Proceedings | 1999


    Anti-derailment train coupler

    Europäisches Patentamt | 2021

    Freier Zugriff

    Study on Train Derailment Control on Railway Steel Bridge

    Zhou, Z. / Zhang, J. / Qin, W. et al. | British Library Conference Proceedings | 2010