A surface liner member includes an external wall which is provided with multiple holes, a spacer structure, and tubes which are respectively associated with the holes in the external wall. The surface liner member is intended to be applied to a base surface in order to reduce, by acoustic absorption, an acoustic wave reflected on this base surface. The acoustic absorption efficiency is improved, particularly for frequencies below 500 Hz, by varying the shape of the holes in the external wall such that the ratio of the hole perimeter to the hole area varies. Such a surface liner member may be adapted to form a surface portion of an aircraft engine nacelle, or of a leading edge of an aircraft wing.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    GARNITURE SURFACIQUE POUR ABSORPTION ACOUSTIQUE


    Weitere Titelangaben:

    SURFACE TRIM FOR ACOUSTIC ABSORPTION
    OBERFLÄCHENVERKLEIDUNG ZUR SCHALLABSORPTION


    Beteiligte:
    SIMON FRANK (Autor:in)

    Erscheinungsdatum :

    07.09.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Französisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



    GARNITURE SURFACIQUE POUR ABSORPTION ACOUSTIQUE

    SIMON FRANK | Europäisches Patentamt | 2019

    Freier Zugriff

    GARNITURE SURFACIQUE POUR ABSORPTION ACOUSTIQUE

    SIMON FRANK | Europäisches Patentamt | 2018

    Freier Zugriff

    Garniture d’isolation acoustique pour carter de soufflante et procédé de fabrication d’une telle garniture d’isolation acoustique

    BOUROLLEAU CLÉMENT / DUPAYS THOMAS / FIORE VINCENT PASCAL et al. | Europäisches Patentamt | 2023

    Freier Zugriff


    GUIDE DE LUMIÈRE SURFACIQUE POUR VÉHICULE

    SBIHI GHANI / SINGH SHIVI / TASSY PIERRE-LOUIS et al. | Europäisches Patentamt | 2025

    Freier Zugriff