A number of researchers [3],[4] have shown that Statistical Energy Analysis[1] provides a useful framework for test-based noise path analysis - as well purely analytical models. This paper describes the results of a comparative study of two such models - an analytic SEA model and a test-based SEA parameter model - for predicting the Noise Reduction performance of a light truck body.First, the different power balance matrix solutions and SEA subsystem definitions are reviewed. Second the results of the two independent models are compared. For some specific cases of structure-borne noise, the test-based method is shown to be more accurate than the analytic model. Third, means by which individual measured SEA parameters can be integrated into an analytic SEA model are proposed and evaluated. Results indicate that the scope for analytical model improvement, but also highlight the need for more rigorous “consistency” in the way test-based SEA parameters are measured.


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    Titel :

    A Comparison of Test-Based and Analytic SEA Models for Vibro-Acoustics of a Light Truck


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Chen, Heng-yee (Autor:in) / O'Keefe, Melissa (Autor:in) / Bremner, Paul (Autor:in)

    Kongress:

    SAE Noise and Vibration Conference and Exposition ; 1995



    Erscheinungsdatum :

    01.05.1995




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    A comparison of test-based and analytic SEA models for vibro-acoustics of a light truck

    Chen,H. / OKeefe,M. / Bremmer,P. et al. | Kraftfahrwesen | 1995


    A Comparison of Test-Based and Analytic SEA Models for Vibro-Acoustics of a Light Truck

    Chen, H.-Y. / O'Keefe, M. / Bremner, P. et al. | British Library Conference Proceedings | 1995


    STS-5 vibro-acoustics

    OSSING, H. / CROWLEY, F.A. | AIAA | 1983


    Vibro-acoustics for Space Station applications

    VAICAITIS, R. / BOFILIOS, D. | AIAA | 1986