Studies were conducted evaluating the effectiveness of alterative strategies for providing crashworthiness of the vehicle structures. Conventional practice results in cars of essentially uniform longitudinal strength. The crash energy management approach requires varying strength through the train, with high strength in the occupied areas and lower strength in the unoccupied areas. For train-to-train collisions at closing speeds above 70 mph, the crash energy management approach is more effective than the conventional approach in preserving occupant volume. For closing speeds below 70 mph, both strategies are equally effective in preserving occupant volume. The crash energy management design results in gentler secondary impacts for train-to-train collisions than the conventional design, at all speeds analyzed. A method for developing the crush zone force/displacement characteristics and occupant volume strength required to limit secondary impact velocities and preserve occupant volumes is developed. Ideal force/displacement characteristics and occupant volume strength required to survive a 140 mph train-to-train collision are first determined; constraints on crush zone length and maximum occupant volume strength are then applied. The two design approaches are evaluated in terms of occupant volume lost and secondary impact injury by applying a lumped-mass model, using the parameters associated with each design, for a range of collision scenerios.


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    Titel :

    Train crashworthiness design for occupant survivability


    Weitere Titelangaben:

    Konstruktion der Verformungsfähigkeit bei Zügen für die Insassensicherheit


    Beteiligte:
    Tyrell, D.C. (Autor:in) / Severson, K.J. (Autor:in) / Marquis, B.P. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    20 Seiten, 22 Bilder, 4 Tabellen, 12 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Train Crashworthiness Design for Occupant Survivability

    Tyrell, D. C. / Severson, K. J. / Marquis, B. P. et al. | British Library Conference Proceedings | 1995


    High-speed passenger train crashworthiness and occupant survivability

    Simons, J. W. / Kirkpatrick, S. W. | British Library Conference Proceedings | 1999



    Train crashworthiness

    Schroeder, M. | British Library Online Contents | 1999