Acoustically absorptive liners are used in the inlet and exhaust ducts of commercial aircraft engines. A double layer acoustic liner consists of a porous face sheet, a porous septum, an impervious back sheet, and a honeycomb structure. The Acousti-Cap™ technology, developed by Hexcel Corporation, is a significant innovation in the manufacture of double layer acoustic liners. It consists of a non-metallic permeable cap material embedded into each cell of the honeycomb core to create an acoustic septum. This paper presents details of the extensive acoustic testing and analysis carried out to support the development of acoustic liners with embedded mesh-caps.


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    Titel :

    Development of the Acousti-Cap™ Technology for Double-Layer Acoustic Liners in Aircraft Engine Nacelles


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Syed, Asif A. (Autor:in) / Smith, Clark R. (Autor:in) / Ayle, Earl (Autor:in) / Ichihashi, Fumitaka (Autor:in)

    Kongress:

    Aerospace Technology Conference and Exposition ; 2007



    Erscheinungsdatum :

    17.09.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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