A study assessing vertical track geometry quality based on simulations of dynamic track—vehicle interaction is presented in this article. The dynamic model is composed of track, vehicle, and wheel—rail contact with moving irregularities and is solved in the frequency domain by fast Fourier transform or in the time domain by constructing a filter function based on system identification. Frequency-dependent stiffness and loss factor of railpads are used in this study. Numerical simulations are carried out for a 120 km long track to demonstrate the potential benefits of enhancing track quality assessment by calculating wheel—rail forces.


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    Title :

    Assessment of vertical track geometry quality based on simulations of dynamic track—vehicle interaction


    Contributors:
    Li, M X D (author) / Berggren, E G (author) / Berg, M (author)


    Publication date :

    2009-03-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Assessment of vertical track geometry quality based on simulations of dynamic track-vehicle interaction

    Li, M.X.D. / Berggren, E.G. / Berg, M. | British Library Online Contents | 2009



    Assessment of vertical track geometry quality based on simulations of dynamic track-vehicle interaction

    Li, M.X.D. / Berggren, E.G. / Berg, M. et al. | British Library Conference Proceedings | 2009



    Assessing track geometry quality based on wavelength spectra and track–vehicle dynamic interaction

    Li, M. X.D. / Berggren, E. G. / Berg, M. et al. | Taylor & Francis Verlag | 2008