A new method is proposed as a solution for the large-scale coupled vehicle-track dynamic model with nonlinear wheel-rail contact. The vehicle is simplified as a multirigid-body model, and the track is treated as a three-layer beam model. In the track model, the rail is assumed to be an Euler-Bernoulli beam supported by discrete sleepers. The vehicle model and the track model are coupled using Hertzian nonlinear contact theory, and the contact forces of the vehicle subsystem and the track subsystem are approximated by the Lagrange interpolation polynomial. The response of the large-scale coupled vehicle-track model is calculated using the precise integration method. A more efficient algorithm based on the periodic property of the track is applied to calculate the exponential matrix and certain matrices related to the solution of the track subsystem. Numerical examples demonstrate the computational accuracy and efficiency of the proposed method.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A precise integration method for solving coupled vehicle-track dynamics with nonlinear wheel-rail contact


    Contributors:
    Zhang, J. (author) / Gao, Q. (author) / Tan, S.J. (author) / Zhong, W.X. (author)

    Published in:

    Journal of Sound and Vibration ; 331 , 21 ; 4763-4773


    Publication date :

    2012


    Size :

    11 Seiten, 7 Bilder, 3 Tabellen, 20 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Solving conformal wheel–rail rolling contact problems

    Vollebregt, Edwin / Segal, Guus | Tema Archive | 2014


    Solving conformal wheel-rail rolling contact problems

    Vollebregt,E. / Segal,G. / Delft Univ.of Technol.,NL | Automotive engineering | 2014


    Solving conformal wheel–rail rolling contact problems

    Vollebregt, Edwin / Segal, Guus | Taylor & Francis Verlag | 2014


    Wheel/rail contact isolation due to track contamination

    Lewis, R. / Dwyer-Joyce, R.S. / Lewis, J. | Tema Archive | 2003