An acoustic liner has a honeycomb layer disposed between a first panel and a permeable panel and includes a plurality of serpentine walls spaced apart from one-another. Adjacent serpentine walls outline in-part a first region carried by the first panel and an opposing second region carried by the permeable panel. The first and second regions are offset such that a centerline distance extending between the regions and centered between adjacent walls is greater than a distance measured directly between the panels, enabling the design of thinner acoustic liners. The regions and adjacent walls further define a cell having a constricted portion communicating between an end portion and an entry portion such that the constricted portion creates a frequency shift.


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    Title :

    Acoustic liner


    Contributors:

    Publication date :

    2016-10-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64C AEROPLANES , Flugzeuge / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS / F02K JET-PROPULSION PLANTS , Strahltriebwerke / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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