The present invention relates to a sound absorbing disk and comprises a housing, a viscous fluid, a plurality of ring members, a resilient member and a cover member. The housing has a hollow inside and has a lateral wall and a floor surface. The viscous fluid is accommodated inside the housing. The plurality of ring members are formed such that the central part can be passed through, and are positioned inside the housing, distanced from each other, along the direction of movement of the sound waves. The resilient member is disposed between the lateral wall of the housing and the ring members, has a lower modulus of elasticity than the modulus of elasticity of the viscous fluid, and contracts and expands by means of the viscous fluid moving between the ring members when the sound waves fall incident. The cover member is mounted on the front of the housing and tightly seals the inside of the housing from the outside.

    La présente invention concerne un disque absorbant acoustique et comprend un boîtier, un fluide visqueux, une pluralité d'éléments annulaires, un élément élastique et un élément de couvercle. Le boîtier a un intérieur creux, une paroi latérale et une surface de sol. Le fluide visqueux est logé dans le boîtier. La pluralité d'éléments annulaires sont formés de telle sorte que la partie centrale puisse être traversée, et ils sont positionnées à l'intérieur du boîtier, écartés les uns des autres, le long de la direction de déplacement des ondes sonores. L'élément élastique, qui est disposé entre la paroi latérale du boîtier et les éléments annulaires, présente un module d'élasticité inférieur au module d'élasticité du fluide visqueux, et se contracte et se dilate au moyen du fluide visqueux qui se déplace entre les éléments annulaires lorsque les ondes sonores tombent de manière incidente. L'élément de couvercle est monté sur l'avant du boîtier et ferme hermétiquement l'intérieur du boîtier de l'extérieur.

    본 발명은 흡음 디스크에 관한 것으로서, 하우징과, 점성 유체와, 복수의 링부재와, 탄성부재와, 덮개부재를 포함한다. 하우징은 내부가 중공이고, 측벽과 바닥면이 형성된다. 점성 유체는 하우징 내부에 수용된다. 복수의 링부재는 중앙부가 관통되게 형성되고, 하우징 내부에서 음파의 진행방향을 따라 이격되게 배치된다. 탄성부재는 하우징의 측벽과 링부재 사이에 배치되고, 점성 유체의 탄성계수보다 작은 탄성계수를 가지며, 음파가 입사될 때 링부재 사이로 출입하는 점성 유체에 의해 수축 및 팽창된다. 덮개부재는 하우징의 전방에 장착되고, 외부로부터 하우징 내부를 밀폐시킨다.


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    Title :

    SOUND ABSORBING DISK AND UNDERWATER SOUND ABSORBING PLATE USING SAME


    Additional title:

    DISQUE ABSORBANT ACOUSTIQUE ET PLAQUE ABSORBANTE ACOUSTIQUE SOUS-MARINE L'UTILISANT
    흡음 디스크 및 이를 이용한 수중 흡음판


    Contributors:

    Publication date :

    2020-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen



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