A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOUND ABSORPTION STRUCTURE AND SOUND ABSORPTION WALL
To attain a high sound absorption rate in a broadband while suppressing the thickness of a sound absorption structure.SOLUTION: A sound absorption structure 10 includes a first waveguide 11, a second waveguide 12, a third waveguide 13, and a penetration plate. A first opening end 11a of the first waveguide 11 has a first penetration plate, a second opening end 12a of the second waveguide 12 has a second penetration plate, a third opening end 13a of the third waveguide 13 has a third penetration plate. Each waveguide in the sound absorption structure 10 is a hollow part which functions as a resonator, and sound waves which enter the penetration plates can enter the waveguides.SELECTED DRAWING: Figure 1
【課題】吸音構造体の厚みを抑制しながら広帯域に亘って高い吸音率を達成する。【解決手段】吸音構造体１０は、第１の導波管１１と、第２の導波管１２と、第３の導波管１３と、穿孔板とを備える。第１の導波管１１の第１の開口端１１ａには、第１の穿孔板が設けられ、第２の導波管１２の第２の開口端１２ａには、第２の穿孔板が設けられ、第３の導波管１３の第３の開口端１３ａには、第３の穿孔板が設けられる。吸音構造体１０に含まれる各導波管は、共振器として機能する空洞部であり、穿孔板に入射する音波は各導波管の内部に侵入可能である。【選択図】図１
SOUND ABSORPTION STRUCTURE AND SOUND ABSORPTION WALL
To attain a high sound absorption rate in a broadband while suppressing the thickness of a sound absorption structure.SOLUTION: A sound absorption structure 10 includes a first waveguide 11, a second waveguide 12, a third waveguide 13, and a penetration plate. A first opening end 11a of the first waveguide 11 has a first penetration plate, a second opening end 12a of the second waveguide 12 has a second penetration plate, a third opening end 13a of the third waveguide 13 has a third penetration plate. Each waveguide in the sound absorption structure 10 is a hollow part which functions as a resonator, and sound waves which enter the penetration plates can enter the waveguides.SELECTED DRAWING: Figure 1
【課題】吸音構造体の厚みを抑制しながら広帯域に亘って高い吸音率を達成する。【解決手段】吸音構造体１０は、第１の導波管１１と、第２の導波管１２と、第３の導波管１３と、穿孔板とを備える。第１の導波管１１の第１の開口端１１ａには、第１の穿孔板が設けられ、第２の導波管１２の第２の開口端１２ａには、第２の穿孔板が設けられ、第３の導波管１３の第３の開口端１３ａには、第３の穿孔板が設けられる。吸音構造体１０に含まれる各導波管は、共振器として機能する空洞部であり、穿孔板に入射する音波は各導波管の内部に侵入可能である。【選択図】図１
SOUND ABSORPTION STRUCTURE AND SOUND ABSORPTION WALL
吸音構造体及び吸音壁
TAIRA YUDAI (author) / GOMI MASAKI (author) / MIURA KAZUKI (author)
2021-09-27
Patent
Electronic Resource
Japanese
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