A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ACOUSTIC HAZARD PREVENTION DEVICE
To provide a device for acoustic hazard prevention and the like, that can be easily manufactured, is less susceptible to damage, and has a higher degree of freedom in terms of installation.SOLUTION: A plurality of ribs 3 for acoustic diffusion with a plurality of points P aligned on a surface and connected by line segments L are provided. The ribs are acoustically exposed on the sound incident side Sa, and the plurality of points P are arranged according to the following equation. The angle between an n-th line segment connecting an n-th point and a reference point, and an n+1-st line segment connecting the n+1-st point and the reference point is nα (n is a natural number), and an n range satisfies n+1-st line segment length R(n+1)>n-th line segment length R(n). φ=(1+sqrt(5))/2α=360°*1/(1+φ)SELECTED DRAWING: Figure 1
【課題】 簡易に製造できると共に、従来より破損しにくく設置上の自由度が高い音響障害防止等装置を提供すること。【解決手段】面上に並ぶ複数の点Ｐを線分Ｌで接続した音響拡散のための複数のリブ３を有する。リブは音の入射側Ｓａに音響的に露出し、複数の点Ｐは次式により配置される。ｎ番目点及び基準点を結ぶｎ番目線分と、ｎ＋１番目点及び基準点を結ぶｎ＋１番目線分相互の角度がｎα（ｎは自然数）であり、ｎ＋１番目線分長Ｒ（ｎ＋１）＞ｎ番目線分長Ｒ（ｎ）を満たすｎ範囲を有する。φ＝（１＋ｓｑｒｔ（５））／２α＝３６０°＊１／（１＋φ）【選択図】 図１
ACOUSTIC HAZARD PREVENTION DEVICE
To provide a device for acoustic hazard prevention and the like, that can be easily manufactured, is less susceptible to damage, and has a higher degree of freedom in terms of installation.SOLUTION: A plurality of ribs 3 for acoustic diffusion with a plurality of points P aligned on a surface and connected by line segments L are provided. The ribs are acoustically exposed on the sound incident side Sa, and the plurality of points P are arranged according to the following equation. The angle between an n-th line segment connecting an n-th point and a reference point, and an n+1-st line segment connecting the n+1-st point and the reference point is nα (n is a natural number), and an n range satisfies n+1-st line segment length R(n+1)>n-th line segment length R(n). φ=(1+sqrt(5))/2α=360°*1/(1+φ)SELECTED DRAWING: Figure 1
【課題】 簡易に製造できると共に、従来より破損しにくく設置上の自由度が高い音響障害防止等装置を提供すること。【解決手段】面上に並ぶ複数の点Ｐを線分Ｌで接続した音響拡散のための複数のリブ３を有する。リブは音の入射側Ｓａに音響的に露出し、複数の点Ｐは次式により配置される。ｎ番目点及び基準点を結ぶｎ番目線分と、ｎ＋１番目点及び基準点を結ぶｎ＋１番目線分相互の角度がｎα（ｎは自然数）であり、ｎ＋１番目線分長Ｒ（ｎ＋１）＞ｎ番目線分長Ｒ（ｎ）を満たすｎ範囲を有する。φ＝（１＋ｓｑｒｔ（５））／２α＝３６０°＊１／（１＋φ）【選択図】 図１
ACOUSTIC HAZARD PREVENTION DEVICE
音響障害防止等装置
YATSUNAMI SHIMPEI (author)
2022-10-14
Patent
Electronic Resource
Japanese
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