This paper focuses on revealing the dynamic behaviour of a hydraulic yaw damper under very small excitation conditions. First, the measured yaw damper movement is presented when a train experiences unstable motions. It shows that the yaw damper is characterized by very small harmonic movement between 0.5 and 2 mm. Following this, a simplified physical model of the yaw damper is developed which has the ability to reproduce its dynamic performance in the range of operating conditions, and then suitably validated with experimental results. At last, the dynamic behaviour of the yaw damper under very small amplitudes is investigated by comparing with its static behaviour, and the dynamic stiffness and damping in terms of key parameters are studied. It is concluded that there is a great difference in the damper performance between dynamic and static conditions which is caused by the internal damper flexibility under small amplitudes. The percentage of entrapped air in oil, rubber attachment stiffness, and leakage flow have a great effect on the dynamic behaviour of the yaw damper related to the dynamic stiffness and damping. The effect is even more remarkable for smaller amplitudes regarding the dissolved air in oil. Oil leakage has a greater impact on dynamic damping than dynamic stiffness. The series stiffness of the yaw damper is mainly provided by the spring effect of the oil when the rubber attachment stiffness reached a certain limit, and an additional increase in rubber attachment stiffness becomes useless to further enhance the overall stiffness of the damper.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Dynamic behaviour of a high-speed train hydraulic yaw damper


    Beteiligte:
    Huang, Caihong (Autor:in) / Zeng, Jing (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 56 , 12 ; 1922-1944


    Erscheinungsdatum :

    2018-12-02


    Format / Umfang :

    23 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Study on the nonlinear dynamic model of high-speed train yaw damper

    Wu, Na / Wang, Kang | British Library Conference Proceedings | 2023


    Failure Effects of Anti-Hunting Damper on High-Speed Train

    Zhang, Ji-Min / Man, Li-Wen | Tema Archiv | 2013


    Transverse oil damper and high-speed motor train unit applying same

    ZHANG HONGWEI / WU TONG / WU XU | Europäisches Patentamt | 2023

    Freier Zugriff

    HYDRAULIC DAMPER FOR A TRAIN COUPLING DEVICE, PROVIDING FOR RECOIL SUPPRESSION

    LIZELL MAGNUS | Europäisches Patentamt | 2020

    Freier Zugriff

    Adaptive stability mechanism of high-speed train employing parallel inerter yaw damper

    Zhang, Xiaoxia / Li, Hu / Cheng, Jun et al. | Taylor & Francis Verlag | 2023