Detailed finite element models of a fuselage structure and acoustic cabin volume of a laboratory based prototypical aircraft fuselage were generated for the purpose of studying the predictive capabilities of deterministic modeling procedures for structure-borne noise transmission. Comparative predictions are made to measured wing-to-fuselage attach point interances and interior noise to force responses. Several structural models with increased structural definition were evaluated. It was found that to accurately predict wing-to-fuselage attach point inertances required increased local area structural definition, while interior noise can be reasonably well predicted wihtout paying additional attention to local area structural details.


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    Title :

    Fuselage structural-acoustic modeling for structure-borne interior noise transmission


    Additional title:

    Struktur-akustisches Modell des Leitwerks zur Ermittlung der strukturbedingten Geraeuschemission in das Flugzeuginnere


    Contributors:
    Unruh, J.F. (author) / Dobosz, S.A. (author)

    Published in:

    ASME-Papers ; Dec ; 1-8


    Publication date :

    1987


    Size :

    8 Seiten, 16 Bilder, 1 Tabelle, 14 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English