A finite element model for the process of a wheel passing a crossing is presented. In the dynamic model, one wheel, the wing rails and the crossing nose (frog) are modelled. The bogie, the complete wheel set and the support of the crossing are represented as a system consisting of masses, springs, dampers and friction-generating elements. The rolling/sliding behaviour between the wheel and crossing is studied using the proposed model. Due to the conical shape of the wheel tread and multiple contacts between the wheel and the crossing parts, sliding occurs during the transition of the wheel from the wing rail to the crossing nose or vice versa. At the same time, an impact occurs that produces high contact forces. The parameters of the model are the train speed and passing direction, the wheel and the crossing geometry, the axle load and the support of the crossing. In this paper, the crossover process is studied for high axle loads and compared with results of simulations using a normal axle load. Further parameters are three train velocities, both directions of passing and different crossing materials. The loading of the crossing nose is calculated for all cases (axle load, train speed and direction) and materials.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A wheel passing a crossing nose: Dynamic analysis under high axle loads using finite element modelling*


    Contributors:


    Publication date :

    2012-11-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





    A wheel passing a crossing nose: Dynamic analysis under high axle loads using finite element modelling

    Pletz, Martin / Daves, Werner / Ossberger, Heinz | Tema Archive | 2012


    Dynamical finite element analysis - a wheel in a curve and a wheel passing a crossing

    Daves, W. / Yao, W. P. / Razny, W. et al. | British Library Conference Proceedings | 2003



    Analysis of Road Pavements under Dynamic Axle Loads

    De L. Antunes, M. / COST 323 Action; Project; Management Committee | British Library Conference Proceedings | 1998