The coupled vehicle/track dynamic model with the flexible wheel set was developed to investigate the effects of polygonal wear on the dynamic stresses of the wheel set axle. In the model, the railway vehicle was modelled by the rigid multibody dynamics. The wheel set was established by the finite element method to analyse the high-frequency oscillation and dynamic stress of wheel set axle induced by the polygonal wear based on the modal stress recovery method. The slab track model was taken into account in which the rail was described by the Timoshenko beam and the three-dimensional solid finite element was employed to establish the concrete slab. Furthermore, the modal superposition method was adopted to calculate the dynamic response of the track. The wheel/rail normal forces and the tangent forces were, respectively, determined by the Hertz nonlinear contact theory and the Shen–Hedrick–Elkins model. Using the coupled vehicle/track dynamic model, the dynamic stresses of wheel set axle with consideration of the ideal polygonal wear and measured polygonal wear were investigated. The results show that the amplitude of wheel/rail normal forces and the dynamic stress of wheel set axle increase as the vehicle speeds rise. Moreover, the impact loads induced by the polygonal wear could excite the resonance of wheel set axle. In the resonance region, the amplitude of the dynamic stress for the wheel set axle would increase considerably comparing with the normal conditions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influence of polygonal wear of railway wheels on the wheel set axle stress


    Contributors:
    Wu, Xingwen (author) / Chi, Maoru (author) / Wu, Pingbo (author)

    Published in:

    Vehicle System Dynamics ; 53 , 11 ; 1535-1554


    Publication date :

    2015-11-02


    Size :

    20 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Influence of polygonal wear of railway wheels on the wheel set axle stress

    Wu,X. / Chi,M. / Wu,P. et al. | Automotive engineering | 2015



    Wheel/rail dynamic interaction induced by polygonal wear of locomotive wheels

    Yang, Yunfan / Ling, Liang / Wang, Chao et al. | Taylor & Francis Verlag | 2022


    Wear of Wheels and Axle in Locomotive and Measures Taken by Indian Railway

    Kumar, Upendra / Kasvekar, Rutvik / Sharma, Sunil Kumar et al. | TIBKAT | 2022


    RAILWAY WHEEL, AND WHEEL AND AXLE FOR RAILWAY VEHICLE

    KUROSAKA RYUTA / KATO TAKANORI / MAKINO TAIZO et al. | European Patent Office | 2023

    Free access