Exhaust acoustics simulation is an important part of the exhaust system process. Especially important is the trend towards a coupled approach to performance and acoustics design. The present paper describes a new simulation tool developed for such coupled simulations. This tool is based on a one-dimensional fluid dynamics solution of the flow in the engine manifolds and exhaust and intake elements. To represent the often complex geometries of mufflers, an easy-to-use graphical pre-processor is provided, with which the user builds a model representation of mufflers using a library of basic elements. A comparison made to two engines equipped with exhaust silencers, shows that the predictions give good results.


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    Titel :

    Modeling of Engine Exhaust Acoustics


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Silvestri, John (Autor:in) / Goerg, Karl-Alfred (Autor:in) / Jebasinski, Rolf (Autor:in) / Morel, Thomas (Autor:in)

    Kongress:

    Noise & Vibration Conference & Exposition ; 1999



    Erscheinungsdatum :

    17.05.1999




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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