Among all the algorithms to solve the wheel–rail contact problem, Kalker's FastSim has become the most useful computation tool since it combines a low computational cost and enough precision for most of the typical railway dynamics problems. However, some types of dynamic problems require the use of a non-steady state analysis. Alonso and Giménez developed a non-stationary method based on FastSim, which provides both, sufficiently accurate results and a low computational cost. However, it presents some limitations; the method is developed for one time-dependent creepage and its accuracy for varying normal forces has not been checked. This article presents the required changes in order to deal with both problems and compares its results with those given by Kalker's Variational Method for rolling contact.


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    Titel :

    Non-steady state modelling of wheel–rail contact problem


    Beteiligte:
    Guiral, A. (Autor:in) / Alonso, A. (Autor:in) / Baeza, L. (Autor:in) / Giménez, J. G. (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 51 , 1 ; 91-108


    Erscheinungsdatum :

    2013-01-01


    Format / Umfang :

    18 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch