An analytical study on noise transmission into a cabin of a twin engine G/A aircraft is presented. The solution of the governing acoustic-structural equations of motion is developed utilizing modal expansions and a Galerkin type procedure. The exterior noise pressure inputs are taken from available experimental data. A direct comparison between theory and experiments on cabin noise levels is given. Interior noise reduction ny stiffening, mass additions, and damping treatments is investigated. It is shown that a combination of added mass and damping could significantly reduce interior noise levels for this aircraft. (DePo)


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    Titel :

    Noise transmission into a light aircraft


    Weitere Titelangaben:

    Schallfortpflanzung in einem Leichtflugzeug


    Beteiligte:
    Vaicaitis, R. (Autor:in) / McDonald, W. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1978


    Format / Umfang :

    13 Seiten, 14 Bilder, 19 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Noise transmission into a light aircraft

    VAICAITIS, R. | AIAA | 1978


    Noise transmission into a light aircraft

    Vaicaitis, R. / McDonald, W. | Tema Archiv | 1978


    Light aircraft sound transmission studies: noise reduction model

    Atwal, M.S. / Heitman, K.E. / Crocker, M.J. | Tema Archiv | 1987