The invention relates to a porous layer for an acoustic attenuation structure, a method for producing same, and an acoustic attenuation structure, the method comprises: a first step of producing a solid layer comprising at least one structural frame (44) embedded in a resin matrix (46) and having a first stiffener and a second stiffener, the first stiffener and the second stiffener being arrangedto define an area (50) without stiffeners; and a second step of generating a through-hole (42) in a region (50) of the solid layer without stiffeners using a laser beam (58).

    本发明的主题是用于声学衰减结构的多孔层及其制造方法和声学衰减结构,所述方法包括:第一步骤:生产固体层,所述固体层包括至少一个结构框架(44),所述至少一个结构框架嵌入树脂基体(46)中并且具有第一加强条和第二加强条,所述第一加强条和第二加强条被布置成界定没有加强条的区域(50);以及第二步骤:使用激光束(58)在所述固体层的没有加强条的区域(50)中产生通孔(42)。


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    Title :

    Porous layer for acoustic attenuation structure, method for producing same, and acoustic attenuation structure


    Additional title:

    用于声学衰减结构的多孔层及其制造方法和声学衰减结构


    Contributors:

    Publication date :

    2020-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B23K Löten , SOLDERING OR UNSOLDERING / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS




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