The invention relates to an internal wall of an aircraft air intake comprising: a resistive skin configured to allow acoustic waves to pass through, and a cellular core configured to damp the acoustic waves, and characterized in that the resistive skin is made up of a succession, in an orbital direction, of strips (2) of acoustic material, each strip (2) having a length in a longitudinal direction, a width in a transverse direction, a thickness and axial ends (20, 21). Each strip of material is folded in a substantially transverse plane at at least one of the axial ends (20) of the strip, in an end portion (4) of the length of the strip. The invention also relates to an aircraft nacelle comprising an air intake having the internal wall of the aircraft air intake, an aircraft propulsion unit comprising a nacelle, and an aircraft comprising a propulsion unit. The resistive skin having an integrated fastening flange according to the invention does make it possible to do away with the use of the previously known shrouds at at least one of the ends of the duct of the air intake.

    本发明涉及一种飞行器进气口内壁,其包括配置为允许声波通过的阻性表层和配置为对声波进行阻尼的蜂窝芯,其特征在于,阻性表层由沿轨道方向的一系列声学材料条(2)构成,条(2)具有在纵向方向上的长度、在横向方向上的宽度、厚度和轴向端部(20,21)。在条的轴向端部中的至少一个轴向端部(20)处,在条的长度的端部部分(4),材料条在基本横向的平面中被折叠。本发明还涉及包括具有前述飞行器进气口内壁的进气口的飞行器短舱、包括短舱的飞行器推进单元和包括推进单元的飞行器。根据本发明的具有一体式紧固凸缘的阻性表层条允许在进气口管道的至少一个端部处免除使用先前已知的护罩。


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    Titel :

    Internal wall of aircraft air intake, aircraft nacelle, aircraft propulsion unit and aircraft


    Weitere Titelangaben:

    飞行器进气口内壁及相关飞行器短舱、推进单元和飞行器


    Beteiligte:
    PORTE ALAIN (Autor:in) / LALANE JACQUES (Autor:in)

    Erscheinungsdatum :

    2022-02-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse



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