This study uses an elastic-plastic, coupled temperature-displacement finite element model to investigate the effect of rail corrugations on the wheel-rail thermal contact stress and temperature distribution during wheel braking. The finite element model assumes that the material properties and the friction coefficient are temperature-dependent. The analysis considers various corrugation wavelengths and amplitudes and is performed over a range of braking speeds. The results indicate that the corrugated rail induces wavelike contact pressure and temperature distributions on the rail surface. The results also show that the variation in the peak contact pressure increases as the corrugation wavelength is reduced or as the corrugation amplitude is increased. Furthermore, it is found that the corrugated rail shifts the location of the peak value of the rail surface temperature toward the leading edge of the contact region. The amplitude of the temperature fluctuations reduces as the corrugation wavelength is increased or as the corrugation amplitude is reduced. Finally, a higher corrugation amplitude or a shorter corrugation wavelength causes the location of the peak maximum shear stress to shift toward the rail surface.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Elastic-plastic wheel-rail thermal contact on corrugated rails during wheel braking


    Beteiligte:
    Chen, Yung-Chuan (Autor:in) / Lee, Sing-You (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2009


    Format / Umfang :

    9 Seiten, 16 Bilder, 1 Tabelle, 33 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Modeling of braking thermal effect for wheel-rail contact parameters

    Derbew, Molla / Rao, DK Nageswara / Zeleke, Ephrem | SAGE Publications | 2021


    Three-dimensional elastic-plastic stress analysis of wheel-rail rolling contact

    Wen, Zefeng / Wu, Lei / Li, Wei et al. | Tema Archiv | 2011


    Mathematical Modelling a Non-Linear Contact between a Flexible Wheel-Set and Corrugated Rails

    Belotserkovskiy, P.M. | British Library Conference Proceedings | 2008


    Elastic wheel for rail vehicle, elastic wheel assembly and rail vehicle

    QI YUAN / HOU CHUANLUN / WANG SHEN et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Analysis of wheel-rail elasto-plastic contact problem

    Zhang, Jun / Liu, Yingxi / Wu, Changhua | Tema Archiv | 2002