Wheel-rail contact calculations are essential for simulating railway vehicle dynamic behavior. Currently, these simulations usually use the Hertz contact theory to calculate normal forces and Kalker's 'FASTSIM program to evaluate tangential stresses. Since 1996, new methods called semi-Hertzian have appeared: 57 (STRIPES). These methods attempt to estimate the non-elliptical contact patches with a discrete extension of the Hertz theory. As a continuation of 2, a validation of the STRIPES method for normal problem computing on three test cases is proposed in this article. The test cases do not fulfill the hypothesis required for the Hertz theory. Then, the Kalker's FASTSIM algorithm is adapted to STRIPES patch calculus to perform tangential forces computation. This adaptation is assessed using Kalker's CONTACT algorithm.


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    Title :

    Assessment of a semi-Hertzian method for determination of wheel-rail contact patch


    Additional title:

    Beurteilung der Semi-Hertz-Methode für Bestimmung der Rad-Schiene-Kontaktfläche



    Published in:

    Vehicle System Dynamics ; 44 , 10 ; 789-814


    Publication date :

    2006


    Size :

    26 Seiten, 7 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Assessment of a semi-Hertzian method for determination of wheel–rail contact patch

    Quost, Xavier / Sebes, Michel / Eddhahak, Anissa et al. | Taylor & Francis Verlag | 2006



    Determination of the wheel rail contact patch in semi-Hertzian conditions

    Ayasse, JB / Chollet, H | Taylor & Francis Verlag | 2005