The vertical dynamic behaviour of a railway vehicle with flexible wheels is compared to that of a vehicle with standard solid wheels. Full scale field experiments performed on a portion of a recently built railway track for high-speed trains are reported. Flexible and solid wheels without and with wheel flats were instrumented for measurement of transient vertical wheel/rail contact forces. Accelerations and strains in the track structure were measured in parallel. The location of the instrumented wheelset in relation to the instrumented portion of the track was determined at each instant of time. Flexible wheels are shown to considerably reduce the contact forces. A linear mathematical model of the track is suggested based on a previously reported technique for solving vertical interaction problems. Track parametrs determined at the test-site are used as input to the model. Numerical results show acceptable agreement with measured responses.


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    Titel :

    Wheel/rail contact forces for flexible versus solid wheels due to tread irregularities


    Weitere Titelangaben:

    Rad/Gleis Kontaktkräfte bei flexiblen- bzw. rigiden Eisenbahnrädern durch Unregelmässigkeiten der Laufflächen


    Beteiligte:
    Fermer, M. (Autor:in) / Nielsen, J.C.O. (Autor:in)


    Erscheinungsdatum :

    1994


    Format / Umfang :

    16 Seiten, 7 Bilder, 1 Tabelle, 18 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Wheel/Rail Contact Forces for Flexible versus Solid Wheels due to Tread Irregularities

    Fermer, M. / Nielsen, J. C. O. / International Association for Vehicle System Dynamics | British Library Conference Proceedings | 1994


    Wheel/Rail Contact Forces for Flexible versus Solid Wheels due to Tread Irregularities

    FERMÉR, M / NIELSEN, J C O | Taylor & Francis Verlag | 1994


    Wheel/rail contact forces for flexible versus solid wheels due to tread irregularities

    Fermer,M. / Nielsen,J.C..O. / Chalmers Univ.of Technology,SE | Kraftfahrwesen | 1994



    Rail corrugation growth - Influence of powered wheelsets with wheel tread irregularities

    Johansson, Anders / Nielsen, Jens C.O. | Tema Archiv | 2007