Acoustically treated components and methods of acoustic treating are provided. The acoustically treated components include a structural fitting having a first surface and a second surface, wherein the first surface defines a flow path and includes a plurality of perforations passing through the structural fitting from the first surface to the second surface, at least one non-structural acoustic treatment member installed on the second surface, a first end of the at least one non-structural acoustic treatment member attached to the second surface such that a cellular structure of the at least one non-structural acoustic treatment member aligns with the plurality of perforations, and a cover attached on a second end of the at least one non-structural acoustic treatment member such that an acoustic chamber is defined between the cover and the cellular structure and open to the flow path.


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    Title :

    Backside acoustic treatment of nacelle structural fittings


    Contributors:

    Publication date :

    2019-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS



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