This paper develops a new two-dimensional numerical model of vehicle/discontinuous slab track dynamic interaction. The vehicle is simulated as a multibody system with 10 degrees of freedom. The slab track is represented by a three-layer model that consists of a continuous rail layer, a discontinuous concrete slab layer, and a continuous concrete base layer. All the slab track layers are modeled by Euler-Bernoulli beam elements with finite lengths. In the New Model (NM), the wheel/rail contact is modeled by nonlinear Hertz springs for the first time. This results in an improvement in the modeling of the slab track/rolling-stock dynamic interaction. The governing differential equations of the model are derived in the time domain and solved in a coupled form. Through several numerical examples, the accuracy and the computational efficiency of the NM in various vehicle/slab track conditions is illustrated.


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    Titel :

    Dynamic Interaction of Vehicle and Discontinuous Slab Track Considering Nonlinear Hertz Contact Model




    Erscheinungsdatum :

    2016



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    56.24 Straßenbau / 74.75 / 56.24 / 55.84 / 74.75 Verkehrsplanung, Verkehrspolitik / 55.84 Straßenverkehr
    Lokalklassifikation TIB:    770/7000



    Dynamic Interaction of Vehicle and Discontinuous Slab Track Considering Nonlinear Hertz Contact Model

    Sadeghi, Javad / Khajehdezfuly, Amin / Esmaeili, Morteza et al. | British Library Online Contents | 2016


    Dynamic Interaction of Vehicle and Discontinuous Slab Track Considering Nonlinear Hertz Contact Model

    Sadeghi, Javad / Khajehdezfuly, Amin / Esmaeili, Morteza et al. | ASCE | 2016



    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

    Hertz contact stress homographs

    McCormick,D. / Zanker,A. | Kraftfahrwesen | 1980