In this chapter, the dynamic response of CRST II slab track structure under the action of Chinese high speed train CRH3 is simulated and analyzed by using the models and algorithms of vehicle and track elements. Stiffness and damping of the rail pad and fastener, stiffness and damping of the CA mortar, and stiffness and damping of the subgrade are selected for parameter analysis. Results of the parameter analysis show among the six parameters, stiffnesses of the rail pad and fastener and the subgrade have significant influence on the dynamic response of the train and the track structure. A small subgrade stiffness may induce huge dynamic response of the track structure. Therefore, increasing the subgrade stiffness can contribute to track safety and track stability. The parameter analysis results can provide guidance for optimizing structural parameters of the slab track and designing of the track structure.


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    Titel :

    Analysis of Dynamic Behavior of the Train-Slab Track-Subgrade Coupling System


    Weitere Titelangaben:

    Advances High-speed Rail


    Beteiligte:
    Lei, Xiaoyan (Autor:in)


    Erscheinungsdatum :

    16.12.2021


    Format / Umfang :

    24 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch