New aircraft-sidewall acoustic treatment reduces interior noise to acceptable levels and minimizes addition of weight to aircraft. Transmission of noise through aircraft sidewall reduced by stiffening device attached to interior side of aircraft skin, constrained-layer damping tape attached to stiffening device, porous acoustic materials of high resistivity, and relatively-soft trim panel isolated from vibrations of main fuselage structure.


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    Title :

    New Acoustic Treatment For Aircraft Sidewalls


    Contributors:

    Published in:

    Publication date :

    1988-03-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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