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 :

    1997-05-20




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Structure-borne Noise Prediction Using an Energy Finite Element Method

    Bitsie, F. / Bernhard, R. / Society of Automotive Engineers | British Library Conference Proceedings | 1997


    Structure-borne noise prediction using an energy finite element model

    Bitsie,F. / Bernhard,R. / Purdue Univ.,West Lafayette,US | Kraftfahrwesen | 1997


    Prediction of structure-borne noise, based on the finite element method

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



    Structure borne noise prediction techniques

    Priebsch,H.H. / Affenzeller,J. / Kuipers,G. et al. | Kraftfahrwesen | 1990