RAINDROP COLLISION SOUND SUPPRESSION METHOD: Fid-Bau Portal

RAINDROP COLLISION SOUND SUPPRESSION METHOD

OWAKI MASANAO / KUROKI TAKU / NISHINO YOSHIKAZU / AKASHI REI

PROBLEM TO BE SOLVED: To provide a raindrop collision sound suppression method capable of, by providing a plurality of meshes above a raindrop collision target surface where the raindrop collides, reducing the excitation force applied to the raindrop collision target surface when the raindrop collides with the raindrop target surface, reducing the raindrop collision sound when the raindrop collides with the raindrop target surface, making it difficult for a water film to be formed in the mesh opening, and suppressing occurrence of raindrop collision sound when the water film breaks into raindrops and collides with the raindrop collision target surface.SOLUTION: A raindrop collision sound suppression method according to the present invention is characterized in that a mesh group is provided above a raindrop collision target surface with which raindrops collide and the mesh group is constituted by a plurality of meshes arranged at a predetermined interval from each other so that the mesh faces are opposed to each other, and the mesh surface of the mesh placed at the lowermost position closest to the droplet collision target surface and the raindrop collision target surface are maintained at a predetermined interval.SELECTED DRAWING: Figure 1

【課題】雨滴が衝突する雨滴衝突対象面の上方に複数枚のメッシュを設けることによって、雨滴が雨滴対象面に衝突した際に雨滴衝突対象面に付与される加振力を小さくできるようにして、雨滴が雨滴対象面に衝突した際の雨滴衝突音を小さくできるとともに、メッシュ開口に水膜が生じ難いようにできて、水膜が壊れて雨滴となって雨滴衝突対象面に衝突して雨滴衝突音が発生してしまうことを抑制できるようにした雨滴衝突音抑制方法を提供する。【解決手段】本発明に係る雨滴衝突音抑制方法は、雨滴が衝突する雨滴衝突対象面の上方にメッシュ群を設け、メッシュ群を、メッシュ面が互いに対向するように互いに所定間隔を隔てて配置された複数枚のメッシュにより構成し、滴衝突対象面に最も近い最下位置に設置されるメッシュのメッシュ面と雨滴衝突対象面とを所定間隔に維持した。【選択図】図１

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