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


    Size :

    9 Seiten, 11 Bilder, 22 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    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