The structural flexibility of passenger car bodies is paid most attention in research due to the effect it has on the passenger ride comfort. But as we are moving towards high speed and lightweight freight Railway stock, the issue of structural flexibility becomes essential in the case of freight wagons also. This paper investigates the effect of including the structural flexibility of the carbody of Indian Railway open freight car BOXNHL in the dynamic analysis. A mid surface meshed model of the subject carbody is developed using Hyperworks. Then, modal analysis is done using MSC FEA to identify the dominant flexible body modes. A simulation study has been conducted using NUCARS (New and Untried Car Analytic Regime Simulation) for an empty freight car on straight track and curve. Four types of carbodies have been considered for comparison- rigid carbody, flexible carbody having modal damping factor 0.04, 0.03, and 0.02. Vertical and lateral accelerations are chosen as the representative dynamic response parameters. The novelty of the present work lies in analyzing the effect of modal damping factors on the different response parameters (vertical and lateral accelerations) of empty BOXNHL freight wagon at different speeds. The field test results have been compared with the simulation results for identifying the modal damping factor with a minimum standard deviation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of carbody flexibility on the dynamic performance of an empty freight wagon


    Beteiligte:
    Pandey, Manish (Autor:in)


    Erscheinungsdatum :

    2022-05-01


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Carbody for two cilumn loading freight railcar

    Europäisches Patentamt | 2017

    Freier Zugriff

    Carbody for two cilumn loading freight railcar

    MOON KYEONG HO / KIM NAM PO / HAM YOUNG SAM et al. | Europäisches Patentamt | 2017

    Freier Zugriff


    Critical speed and limit cycles in the empty Y25-freight wagon

    Molatefi, H / Hecht, M / Kadivar, M H | SAGE Publications | 2006


    Critical speed and limit cycles in the empty Y25-freight wagon

    Molatefi, H. / Hecht, M. / Kadivar, M. H. | British Library Online Contents | 2006