A rotor dynamic model of wheel-rail coupling system was established taking wheel eccentricity and initial polygon into consideration in order to investigate the mechanism of wheel polygonal wear. Considering the complex wheel-rail contact relationship, the equivalent yaw angle was proposed and the wheel-rail relative speed model was established. The law of wheel-rail self-excited vibration and its effect on polygonal wear were studied. The possibility of variable speed operation was investigated together with the sensitivity of the system parameters. The results show that the periodic longitudinal and lateral creep forces are essential for the wheel polygonal wear, which have the characteristics of supercritical Hopf bifurcation and ‘fixed wavelength’ and ‘fixed frequency’. While in some circumstances, longitudinal and lateral creep forces jointly cause polygonal wear, in other cases, longitudinal creep forces have almost no effect. By adjusting the longitudinal and lateral stiffness, primary suspension stiffness, and rail damping parameters, as well as by selecting an appropriate speed for variable speed operation, the wheel polygonal wear may be effectively suppressed. The findings offer a fresh viewpoint for the study of mechanisms and the prevention of wheel polygonal wear.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The mechanism of wheel polygonal wear based on rotor dynamics


    Beteiligte:
    Dong, Yahong (Autor:in) / Cao, Shuqian (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 62 , 2 ; 411-427


    Erscheinungsdatum :

    2024-02-01


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A study of polygonal wheel wear through a field test programme

    Wu, Xingwen / Rakheja, Subhash / Wu, Huichao et al. | Taylor & Francis Verlag | 2019


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

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


    A new DFT-based dynamic detection framework for polygonal wear state of railway wheel

    Wang, Qiushi / Xiao, Zhongmin / Zhou, Jinsong et al. | Taylor & Francis Verlag | 2023


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

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


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

    Wu, Xingwen / Chi, Maoru / Wu, Pingbo | Taylor & Francis Verlag | 2015