This paper presents an investigation into the non-steady rolling contact mechanics within the context of railway wheel–rail contact. The focus is on the relationship between the creep force and non-steady parameters, and the purpose is to examine whether a linear system exists for these non-steady cases. The non-steady contact parameters under investigation are contact geometry, normal force, and creepage. Both the normal and tangential contact problems were solved using previously developed time-domain models based on Kalker's [Three-Dimensional Elastic Bodies in Rolling Contact, Kluwer Academic Publishers, Dordrecht, The Netherlands, 1990] numerical theory for half-space contact with prescribed, mainly sinusoidal, load histories. The resultant creep forces were then analysed with a system identification method in order to find a possible transfer function to provide linear representations of the non-steady contact behaviour. It was found that although linear models can be identified in some cases, a general, simple linear model cannot be realised in practice and the non-steady rolling contact mechanics is generally non-linear.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Non-linearity of non-steady rolling contact mechanics under the half-space assumption


    Beteiligte:
    Ren, L. (Autor:in) / Xie, G. (Autor:in) / Iwnicki, S. D. (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 49 , 11 ; 1771-1790


    Erscheinungsdatum :

    2011-11-01


    Format / Umfang :

    20 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Non-linearity of non-steady rolling contact mechanics under the half-space assumption

    Ren,L. / Xie,G. / Iwnicki,S.D. et al. | Kraftfahrwesen | 2011




    Three-Dimensional Surface Crack Analysis of Elastic Half-Space Under Rolling Contact Loading

    Mengcheng, C. / Huiqin, Y. | British Library Conference Proceedings | 2008


    Evaluating Steady-State Assumption for Highway Queueing System

    Young Tae Son / Cassidy, M. J. / Modanat, S. M. | British Library Online Contents | 1995