Based on the theory of vehicle-track coupled dynamics, the dynamic model of the freight car mounted with the sub-frame bogies and the numerical model of curved track were established, utilizing the fast numerical integration method, the vehicle curving performance was simulated to study the influence of the curve geometric parameters such as curve radius, transition curve length, and superelevation of outer rail on wheel-rail dynamic interactions. The simulation results indicate that: (1) Increasing curve radius can decrease the wheel-rail wear, but the effect will weaken while the curve radius is greater than 800 m. (2) If the transition curve length is less than 30 m, vibrations will appear at the transition-circle connecting point, but when the length is bigger than 50 m, its further variation has very little effect on wheel-rail wear. (3) The superelevation of outer rail affects the distribution and difference of the inner and outer wheel-rail forces, too large deficient or excessive superelevation will worsen the wheel-rail wear either. However, an appropriate deficient superelevation of outer rail (e.g. <20 mm) is helpful to reduce the wheel-rail wear, which is consistent with the engineering practice of settling a certain deficient superelevation value.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influence of Curve Geometric Parameters on Curving Performance of Sub-Frame Radial Bogie


    Contributors:
    Yang, Chunlei (author) / Huang, Yunhua (author) / Li, Fu (author)

    Conference:

    Sixth International Conference on Transportation Engineering ; 2019 ; Chengdu, China


    Published in:

    ICTE 2019 ; 1082-1091


    Publication date :

    2020-01-13




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English






    Sub-frame radial bogie

    DENG TAO / PAN SHUPING / WANG AIMIN et al. | European Patent Office | 2017

    Free access

    Sub-frame Radial Bogie

    DENG TAO / PAN SHUPING / WANG AIMIN et al. | European Patent Office | 2015

    Free access

    Compatibility of curving performance and hunting stability of railway bogie

    Matsumoto, A. / Sato, Y. / Ohno, H. et al. | Tema Archive | 2000