The vehicle-track interaction is related to most of the main problems in the railway field such as safety, comfort, design, maintenance, etc. The presence of track irregularities, added to the progressive increase of the running speed of vehicles and the axle load, enhances the exchanged wheel-rail forces, in particular in the vertical direction. For these reasons, many previous research works focused on the development of vertical vehicle-track interaction (VVTI) models, to study the dynamic behaviour of railway vehicles in the vertical direction. However, most of these models schematize simple single car-body railway vehicles. This paper presents in detail a new VVTI model able to describe both complex railway vehicles and complex track systems. The presented approach carefully takes into account track irregularities and relies on a fast integration method that guarantees a good compromise between efficiency and accuracy (a properly modified version of the Zhai model). The validation of the new strategy has been carried out by considering a complete Italian vehicle (the Metrobus Brescia, characterized by Jacobs type bogies), and by comparing the dynamic response of the metro under the effect of random irregularities with some experimental data. Consequently, this proposed approach can be considered a reliable solution for many other simulations and a base for future improvements, as the study of the lateral and longitudinal dynamic response and the wheel-rail wear.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development and Validation of a Vertical Vehicle-Track Interaction Model


    Contributors:
    Meacci, Martina (author) / Meli, Enrico (author) / Pugi, Luca (author) / Rindi, Andrea (author)

    Conference:

    First International Conference on Rail Transportation 2017 ; 2017 ; Chengdu, Sichuan Province, China


    Published in:

    ICRT 2017 ; 723-735


    Publication date :

    2018-03-13




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    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

    Free access

    A Model for Predicting the Evolution of Vertical Vehicle-Track Interaction

    Kumar, Nishant / Kossmann, Claudia / Scheriau, Stephan et al. | Springer Verlag | 2022


    A Model for Predicting the Evolution of Vertical Vehicle-Track Interaction

    Kumar, Nishant / Kossmann, Claudia / Scheriau, Stephan et al. | TIBKAT | 2022


    A Detailed Model for Investigating Vertical Interaction Between Railway Vehicle and Track

    Zhai, W. / Sun, X. / International Association for Vehicle System Dynamics | British Library Conference Proceedings | 1994


    A Detailed Model for Investigating Vertical Interaction between Railway Vehicle and Track

    ZHAI, Wanming / SUN, Xiang | Taylor & Francis Verlag | 1994

    Free access