A composite insulation is included between the skin of an aircraft and interior trim panels. The composite insulation includes multiple layers of micro-perforate material interspersed with layers of semi-rigid material. For a given thickness, the composite insulation provides superior transmission loss over a wide range of frequencies, including low frequencies, compared to conventional homogeneous insulation having the same thickness. Thus, the composite insulation reduces broadband noise within the cabin of an aircraft more effectively compared to conventional insulation.


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    Titel :

    COMPOSITE INSULATION FOR REDUCING BROADBAND AIRCRAFT NOISE


    Beteiligte:
    BUTTS DONALD JOSEPH (Autor:in) / SUKO TODD (Autor:in)

    Erscheinungsdatum :

    12.10.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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