The objective of this work is to analyse the influence of the spin moment generated at the wheel-rail contact area on both vehicle dynamics and dissipated energy that is closely related to wear. From the different methods used in railway simulation programs to model the tangential contact problem, FastSim algorithm has been selected in this work due to its accuracy in the calculation of the contact forces and also because it allows obtaining the spin moment integrating the shear stresses. In the first part of the article the accuracy of FastSim in the calculation of spin moment is analysed. Also, some modifications are introduced in the original algorithm in order to improve its accuracy. In the second part, the influence of the spin moment on the results of some typical situations is presented. It has been checked that its influence on railway dynamics is negligible. On the contrary, it has been found that the value of the dissipated energy can be greatly modified if this parameter is taken into account.


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    Titel :

    Spin moment calculation and its importance in railway dynamics


    Beteiligte:
    Alonso, A. (Autor:in) / Gimenez, J.G. (Autor:in) / Martin, L.M. (Autor:in)


    Erscheinungsdatum :

    2009


    Format / Umfang :

    8 Seiten, 11 Bilder, 1 Tabelle, 7 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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