A new semi-analytical boundary element method is proposed for determining the wheel–rail contact zone and the normal stress distribution within it. The potential contact area is discretised using strip elements, employing an iterative algorithm to satisfy the contact constraints. At each iteration, the length of the contact strips is updated using an analytical expression based on Hertz's theory. This simplified formulation provides good approximation of the pressure distribution, and consequently the contact area, in non-elliptic cases. The reduction in the number of system unknowns by using a semi-analytical methodology also enables fast computation speeds, an indispensable requirement in railway dynamics.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    A semi-analytical numerical method for modelling the normal wheel–rail contact


    Beteiligte:
    Qazi, Aquib (Autor:in) / Yin, Honoré (Autor:in) / Sebès, Michel (Autor:in) / Chollet, Hugues (Autor:in) / Pozzolini, Cédric (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 60 , 4 ; 1322-1340


    Erscheinungsdatum :

    2022-04-03


    Format / Umfang :

    19 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt





    Numerical simulation and parameterisation of rail–wheel normal contact

    Cuperus, Jacobus L / Venter, Gerhard | SAGE Publications | 2017


    Experimental and numerical modelling of wheel-rail contact and wear

    Rovira, A. / Roda, A. / Marshall, M.B. et al. | Tema Archiv | 2011


    Wear modelling in rail–wheel contact

    Ramalho, A. | Tema Archiv | 2015


    A semi-online spatial wheel-rail contact detection method

    Chen, Yuanjun / Jiang, Lizhong / Li, Changqing et al. | Taylor & Francis Verlag | 2022