Ground vibration from surface trains is induced by two main excitation mechanisms, due to the moving quasi-static loads and dynamic loads due to track roughness. The relative importance of these two mechanisms has been investigated using a semi-analytical model of the coupled vehicle, track and ground system. The track is represented as an infinite, layered beam resting on one or more elastic soil layers, overlying a three-dimensional half-space of ground material. The train is modelled as a multi-body system with both primary and secondary suspensions and its motion is included. The quasi-static and dynamic loads have been investigated over a wide range of conditions for locations close to the track and further away. Results are shown in terms of insertion gains for both dynamic and quasi-static components for a wide variety of conditions. It is confirmed that an assessment of the effect of a change in support stiffness should not be based on measurements too close to the track - in the case considered the distance should be at least 10 m to give representative results.


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    Titel :

    Track-Based Control Measures for Ground Vibration - The Influence of Quasi-Static Loads and Dynamic Excitation


    Beteiligte:
    Triepaischajonsak, N. (Autor:in) / Thompson, D.J. (Autor:in) / Jones, C.J. (Autor:in) / Ryue, J. (Autor:in)


    Erscheinungsdatum :

    2012


    Format / Umfang :

    9 Seiten





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Track-Based Control Measures for Ground Vibration – The Influence of Quasi-Static Loads and Dynamic Excitation

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    Track-Based Control Measures for Ground Vibration - The Influence of Quasi-Static Loads and Dynamic Excitation

    Triepaischajonsak, N. / Thompson, D.J. / Jones, C.J.C. et al. | British Library Conference Proceedings | 2012


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