The paper proposes a mathematical model of train-turnout interaction in the mid-frequency range (0-500Hz). The model accounts for the effects of road profile variation along the track and of local variation of track flexibility. The proposed approach is able to represent the condition of one wheel being simultaneously in contact with more than one rail, allowing the accurate prediction of the effect of wheels beeing transferred from one rail to another when passing over the switch toe and the crossing nose. Comprehensive results of train-turnout interaction during the negotiation of the main and the branch lines are presented, including the effect of wear of wheel/reail profiles and presence of track misalignment. In the final part of the paper, comparisons are performed between the results of numerical simulations and line measurements performed on two different turnouts for urban railway lines, showing a good agreement between experimental and numerical results.


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    Title :

    Mathematical modelling of train-turnout interaction


    Additional title:

    Mathematische Modellierung der Zug-Weiche-Wechselwirkung


    Contributors:
    Alfi, S. (author) / Bruni, S. (author)

    Published in:

    Vehicle System Dynamics ; 47 , 5 ; 551-574


    Publication date :

    2009


    Size :

    24 Seiten, 12 Bilder, 2 Tabellen, 18 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Mathematical modelling of train-turnout interaction

    Alfi,S. / Bruni,S. / Politecnico di Milano,IT | Automotive engineering | 2009


    Mathematical modelling of train–turnout interaction

    Alfi, S. / Bruni, S. | Taylor & Francis Verlag | 2009




    Simulation of dynamic interaction between train and railway turnout

    Kassa, Elias / Andersson, Clas / Nielsen, Jens C.O. | Taylor & Francis Verlag | 2006