Governing equations have been derived to model the space- and frequency-averaged behavior of structural acoustic systems. These equations were derived using assumptions similar to the approximations made in SEA. The equations can be used to develop continuous models of 1-D, 2-D, and 3-D subsystems. The equations have been formulated into a finite element approximation referred to as the Energy Finite Element Method (EFEM). In this paper the theory for coupling plate-like structural systems to acoustical systems is derived and implemented into the EFEM. The results of a verification study using a plate mounted on a rectangular acoustical enclosure are shown for two cases, a mechanically driven plate and an acoustically driven enclosure.


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    Titel :

    Structure-borne Noise Prediction Using an Energy Finite Element Method


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE Noise and Vibration Conference and Exposition ; 1997



    Erscheinungsdatum :

    20.05.1997




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    SENGUPTA, G. / LANDMANN, A. / MERA, A. et al. | AIAA | 1986



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    Kuipers, Geert / Priebsch, Hans H. / Affenzeller, Josef | SAE Technical Papers | 1990