The distribution of contact stresses in the wheel–rail system is a decisive factor for the wear of elements and the safety of rail transport. Analytical calculations of stresses based on the Hertz theory can only be applied to elastic deformation of materials. High dynamic loads leading to plastic deformation (not considered in the Hertz theory) are a predominant cause of problems in the contact vicinity. These problems can be successfully resolved by applying the finite-elements method. Two- and three-dimensional test models were generated to estimate an error in numerical calculations in the MSC.MARC program. We compared the results of numerical calculations with analytical calculations. Based on the obtained results we defined the effect of parameters describing the finite-elements mesh on the calculation error for contact stresses, and adjusted mesh parameters appropriately to achieve as low as possible error in numerical calculations. We also defined the effect of material characteristics on the value of contact stresses on the wheel–rail interface.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Methodology and verification of calculations for contact stresses in a wheel–rail system


    Beteiligte:

    Erschienen in:

    Vehicle System Dynamics ; 52 , 1 ; 111-124


    Erscheinungsdatum :

    02.01.2014


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Methodology and verification of calculations for contact stresses in a wheel-rail system

    Kuminek,T. / Aniolek,K. / Silesian Univ.of Technol.,PL et al. | Kraftfahrwesen | 2014



    Measuring Wheel/Rail Contact Stresses using Ultrasound

    Marshall, M. B. / Lewis, R. / Dwyer-Joyce, R. S. et al. | British Library Conference Proceedings | 2004



    Thermal stresses and shakedown in wheel/rail contact

    Ertz, M. / Knothe, K. | Tema Archiv | 2003