An acoustic absorption structure comprising a plurality of resonators. Each resonator comprises a first chamber which has a first mouthpiece delimited by an edge pressed against an inner surface of a porous zone of a skin so that the first chamber and the skin delimit a first cavity, a second chamber, in which is positioned the first chamber, which delimits, with the first chamber, a second cavity, at least one acoustic orifice passing through the first chamber, at least one drainage orifice passing through the first chamber and at least one drainage hole passing the second chamber, each drainage orifice and each drainage hole being configured to limit an accumulation of fluid in the resonator. Also, an aircraft propulsive assembly or an aircraft comprising the acoustic absorption structure are provided.


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    Title :

    STRUCTURE D'ABSORPTION ACOUSTIQUE COMPRENANT UN SYSTÈME DE DRAINAGE DE LIQUIDE ET ENSEMBLE PROPULSIF COMPORTANT UNE TELLE STRUCTURE D'ABSORPTION ACOUSTIQUE


    Additional title:

    STRUCTURE FOR ACOUSTIC ABSORPTION INCLUDING A SYSTEM FOR DRAINING LIQUID AND PROPULSION ASSEMBLY COMPRISING SUCH A STRUCTURE FOR ACOUSTIC ABSORPTION
    AKUSTISCHE ABSORPTIONSSTRUKTUR, DIE EIN FLÜSSIGKEITSDRÄNAGESYSTEM UMFASST, ANTRIEBSEINHEIT, DIE EINE SOLCHE AKUSTISCHE ABSORPTIONSSTRUKTUR UMFASST


    Contributors:

    Publication date :

    2021-06-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES






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