Rail corrugation in the sharp curved section with Cologne-egg fasteners is suppressed by vibration absorbers, in which the suppression mechanism is unclear and the optimization method of the vibration absorber needs to be further investigated. Firstly, the complex eigenvalue and dynamic transient methods are adopted to investigate the vibration inducement of rail corrugation and influence law of vibration absorber on the rail corrugation. Then, the optimization methods of absorbers are studied from the perspectives of the connection stiffness, connection damping and different installation methods of absorbers. Results show that vibration inducement of rail corrugation in the sharp curved section with Cologne-egg fasteners includes the friction-induced oscillation of the entire system and feedback oscillation of undulatory wear. The installation of the vibration absorber can effectively weaken the impact of the vibration inducement, thereby inhibiting the rail corrugation. When the vertical and lateral connection stiffness are 120 MN·m−1 and 60 MN·m−1 respectively, the vertical and lateral connection damping are 100 kN·s·m−1 and 50 kN·s·m−1 respectively, the vibration absorber has the best effect of suppressing rail corrugation. Moreover, the continuous installation on both rail webs can be adopted to achieve the better inhibitory effect of the absorber.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimization of vibration absorbers for the suppression of rail corrugation in the sharp curved section with Cologne-egg fasteners


    Contributors:
    Xu, Jia (author) / Cui, Xiaolu (author) / Ding, Haohao (author) / Bao, Pengyu (author) / Li, Tong (author) / Tang, Chuanping (author) / Xu, Xiangyang (author)

    Published in:

    Vehicle System Dynamics ; 62 , 2 ; 395-410


    Publication date :

    2024-02-01


    Size :

    16 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Study on rail corrugation of a metro tangential track with Cologne-egg type fasteners

    Cui,X.L. / Chen,G.X. / Yang,H.G. et al. | Automotive engineering | 2016


    Study on rail corrugation of a metro tangential track with Cologne-egg type fasteners

    Cui, X. L. / Chen, G. X. / Yang, H. G. et al. | Taylor & Francis Verlag | 2016




    A tribological characterization of the "damage mechanism" of low rail corrugation on sharp curved track

    Saulot, A. / Descartes, S. / Desmyter, D. et al. | Tema Archive | 2006