The aim of this paper is to assist in understanding the formation of short pitch corrugation on railway rails. Based on previous work, a linear mathematical model for the description of the transient wheel-rail dynamics has been set up. To ensure linearity it is proved that the wheel-track model remains stable. For the long-term corrugation process a feedback between transient wheel-rail dynamics and a wear mechanism is assumed. A geometrical filter function is introduced which could explain why corrugation wavelengths observed in practice vary little with train speed. Calculations of the wear process on the rail show how vehicle speed and wheel and rail dynamics modify the corrugation response and how corrugation growth can be reduced.


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    Title :

    A linear wheel-track model to predict instability and short pitch corrugation


    Additional title:

    Ein lineares Rad-Schiene-Modell zur Vorhersage von Instabilitäten und Oberflächenwelligkeiten


    Contributors:
    Müller, S. (author)

    Published in:

    Publication date :

    1999


    Size :

    15 Seiten, 13 Bilder, 18 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English