For a heavy-haul locomotive within a wheel repairing period, wheel polygonal wear with different operating mileages is obtained by field testing. The test results show that the maximum radial runout of the wheel can increase to 0.87 mm and accompany with the typical damage of wheel tread shelling. Taking the wheel polygons as input excitation, the locomotive-track coupled dynamic model is established, which is verified by the comparisons of test and calculated wheelset vertical acceleration in time and frequency domains. The variable wheel-rail friction coefficient is introduced so as to consider the dry and wet rail conditions. The wheel-rail dynamic contact characteristics under the traction and dry-wet rail surface conditions are analysed simultaneously. It is found that the wheel polygon deteriorates the locomotive traction performance and induces the obvious wheel-rail slipping with large tangential stress, especially in wet rail condition. In dry condition, the wheel-rail could contact generally in the adhesion state. But the longitudinal creep forces fluctuate locally with some larger amplitudes closed to the adhesion force, which is mainly attributed to the excitation of serious wheel polygon. Comparing with the results of the newly repaired wheel, the maximum wheel-rail vertical force, longitudinal force, normal stress and tangential stress at the end of wheel repairing period can increase by 55 kN, 28 kN, 240 MPa and 470 MPa in sequence. The wheel-rail slipping and high-stress state in traction condition should be the dominant factors contributing to the wheel damage of tread shelling.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Influence of wheel polygonal wear on wheel-rail dynamic contact in a heavy-haul locomotive under traction conditions


    Beteiligte:
    Liang, Hongqin (Autor:in) / Liu, Pengfei (Autor:in) / Wang, Tianlong (Autor:in) / Wang, Haoyu (Autor:in) / Zhang, Kailong (Autor:in) / Cao, Yunqiang (Autor:in) / An, Dong (Autor:in)


    Erscheinungsdatum :

    2021-04-01


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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

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


    Effect of drive and transmission system on wheel polygonal wear of an heavy-haul locomotive

    Chen, Zaigang / Zhi, Yunsheng / Wang, Kaiyun et al. | Taylor & Francis Verlag | 2023


    Development and computational performance improvement of the wheel-rail coupling for heavy haul locomotive traction studies

    Spiryagin, Maksym / Vollebregt, Edwin / Hayman, Mark et al. | Taylor & Francis Verlag | 2022


    Wheel-Rail Contact Modelling for Locomotive Traction Control System Studies

    Spiryagin, Maksym / Wu, Qing / Bosomworth, Chris et al. | British Library Conference Proceedings | 2020