A new method is proposed for the solution of the vertical vehicle–track interaction including a separation between wheel and rail. The vehicle is modelled as a multi-body system using rigid bodies, and the track is treated as a three-layer beam model in which the rail is considered as an Euler-Bernoulli beam and both the sleepers and the ballast are represented by lumped masses. A linear complementarity formulation is directly established using a combination of the wheel–rail normal contact condition and the generalised-α method. This linear complementarity problem is solved using the Lemke algorithm, and the wheel–rail contact force can be obtained. Then the dynamic responses of the vehicle and the track are solved without iteration based on the generalised-α method. The same equations of motion for the vehicle and track are adopted at the different wheel–rail contact situations. This method can remove some restrictions, that is, time-dependent mass, damping and stiffness matrices of the coupled system, multiple equations of motion for the different contact situations and the effect of the contact stiffness. Numerical results demonstrate that the proposed method is effective for simulating the vehicle–track interaction including a separation between wheel and rail.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A linear complementarity method for the solution of vertical vehicle–track interaction


    Beteiligte:
    Zhang, Jian (Autor:in) / Gao, Qiang (Autor:in) / Wu, Feng (Autor:in) / Zhong, Wan-Xie (Autor:in)

    Erschienen in:

    Vehicle System Dynamics ; 56 , 2 ; 281-296


    Erscheinungsdatum :

    2018-02-01


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Simulation of vertical dynamic vehicle–track interaction using a two-dimensional slab track model

    Aggestam, Emil / Nielsen, Jens C. O. / Bolmsvik, Rikard | Taylor & Francis Verlag | 2018

    Freier Zugriff




    Development and Validation of a Vertical Vehicle-Track Interaction Model

    Meacci, Martina / Meli, Enrico / Pugi, Luca et al. | ASCE | 2018