On classical passenger trains the secondary suspension is commonly ensured by airsprings which are integrated in a pneumatic circuit. In addition to the pneumatic bellows, the circuit contains various pneumatic components with the purpose to maintain a constant height between the carbody and the bogie. These elements can be connected in several ways leading to many existing suspension topologies. This paper deals with the multidisciplinary modelling of a vehicle equipped with such a suspension taking into account both multibody and pneumatic aspects. First it depicts in more detail the various elements of a pneumatic suspension. Then many criteria that influence the suspension morphology are presented. The description of the complete pneumatic circuit implies the use of thermodynamic models which take into account the airflow through the pipes and the valves the pressure in the bellows. Several pipe models are presented,, the choice depending on the length of the pipe. The pneumatic model is then coupled with a multibody model in order to analyse the behaviour of the complete vehicle.


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    Titel :

    Model-based evaluation of railway pneumatic suspensions


    Beteiligte:
    Docquier, N. (Autor:in) / Fisette, P. (Autor:in) / Jeanmart, H. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    13 Seiten, 10 Bilder, 1 Tabelle, 9 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Multiphysic modelling of railway vehicles equipped with pneumatic suspensions

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    Multiphysic modelling of railway vehicles equipped with pneumatic suspensions

    Docquier, N. / Fisette, P. / Jeanmart, H. | Taylor & Francis Verlag | 2007