This soundproof structure comprises a porous fibrous material that attenuates incident sound waves. The fibrous material is made from fibers having an average fiber diameter between 0.5 μm and 5 μm inclusive, and includes: a surface layer on which sound waves are incident; and a propagation layer which is laminated to the surface layer and to which sound waves from the surface layer are propagated. The propagation layer includes a high-density layer that has a greater density than the density of the surface layer.

    L'invention concerne une structure d'insonorisation comprenant un matériau fibreux poreux qui est conçu pour atténuer les ondes sonores incidentes. Ce matériau fibreux est constitué de fibres possédant un diamètre de fibre moyen compris entre 0,5 µm et 5 µm inclus, et comporte : une couche de surface, sur laquelle les ondes sonores sont incidentes ; et une couche de propagation qui est stratifiée sur la couche de surface et produisant la propagation des ondes sonores. La couche de propagation comprend une couche à haute densité dont la densité est supérieure à celle de la couche de surface.

    入射する音波を減衰させる多孔質な繊維体を有し、前記繊維体は、平均繊維径が0.5μm以上5μm以下である繊維で形成され、音波が入射する表面層と、前記表面層と積層され前記表面層から音波が伝搬する伝搬層とを含み、前記伝搬層は、前記表面層の密度よりも大きい密度を有する高密度層を含む、防音構造体。


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    Title :

    SOUNDPROOF STRUCTURE AND METHOD FOR MANUFACTURING SOUNDPROOF STRUCTURE


    Additional title:

    STRUCTURE D'INSONORISATION ET PROCÉDÉ DE FABRICATION DE STRUCTURE D'INSONORISATION
    防音構造体、および防音構造体の製造方法


    Contributors:

    Publication date :

    2018-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / 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 / B62D MOTOR VEHICLES , Motorfahrzeuge



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