This paper presents the development of a multiple model estimation approach for the identification of the adhesion limit to overcome the problem of the wheel slip/slide at the rail wheel-rail contact. The contact characteristics at the rail wheel-rail interface are both highly nonlinear and subject to changes due to exposure to external contaminations. The detection of adhesion and its changes is therefore scientifically challenging, but would provide a critical information in the control of trains to avoid undesirable wear of the wheels/track but also the safety compromise of rail operations. This study exploits the variations in the dynamic behaviour of the railway wheelset caused by the contact condition changes and applies a bank of Kalman filters designed at selected operation points for the adhesion estimation. A fuzzy logic system is then developed to identify the contact conditions by examining the residuals from the Kalman filters.


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    Titel :

    Estimation of wheel–rail contact conditions and adhesion using the multiple model approach


    Beteiligte:
    Hussain, I. (Autor:in) / Mei, T. X. (Autor:in) / Ritchings, R. T. (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 51 , 1 ; 32-53


    Erscheinungsdatum :

    2013-01-01


    Format / Umfang :

    22 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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