A program, global acoustic design sensitivity analyzer, is developed that can perform a global acoustic design sensitivity analysis of exterior noise with respect to structural sizing design variables. A system for global acoustic design sensitivity is introduced and implemented numerically by employing the continuum sensitivity analysis. A half-scale automobile cavity model is considered as a numerical example. By using a continuum method, the authors obtained accurate and efficient sensitivities when the number of design variables was large. Also, the tendency plots of element sensitivities and energy contribution for global acoustic sensitivities are available. Finally, a design optimization was performed to simultaneously reduce the weight and sound pressure level at interesting points and frequencies.


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    Titel :

    Acoustic design sensitivity analysis and optimization for reduced exterior noise


    Weitere Titelangaben:

    Simulationsprogramm zur Ermittlung der örtlichen Verteilung der globalen Sensitivität der Schallabstrahlung einer Fahrzeugkarosserie


    Beteiligte:
    Wang, S. (Autor:in) / Lee, J. (Autor:in)

    Erschienen in:

    AIAA Journal ; 39 , 4 ; 574-580


    Erscheinungsdatum :

    2001


    Format / Umfang :

    7 Seiten, 15 Bilder, 4 Tabellen, 6 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






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