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A platform for research: civil engineering, architecture and urbanism
SOUND ABSORPTION BODY
PROBLEM TO BE SOLVED: To suppress a phenomenon in which a low smoothness of a surface of a substrate adversely affects the sound absorption performance.SOLUTION: A sound absorption body 10 includes: a porous and tabular rock-wool sound absorption plate 12 of a flow resistance of 200-2000 [g/s*cm]; and a film body 18 in which many pores 16 arriving at the rock-wool sound absorption plate 12 are punched in a coated film 14 formed by applying a coating material to the sound wave arrival side of the rock-wool sound absorption plate 12.SELECTED DRAWING: Figure 1
【課題】基材の表面の平滑性が低いことが吸音性能に悪影響を及ぼすことを抑制する。【解決手段】吸音体１０は、流れ抵抗＝２００〜２０００[ｇ／ｓ・ｃｍ3]の多孔質で板状の岩綿吸音板１２と、岩綿吸音板１２の音波到来側に塗料が塗布されて形成された塗膜１４に、岩綿吸音板１２に達する細孔１６が多数穿設された膜体１８と、を含んでいる。【選択図】図１
SOUND ABSORPTION BODY
PROBLEM TO BE SOLVED: To suppress a phenomenon in which a low smoothness of a surface of a substrate adversely affects the sound absorption performance.SOLUTION: A sound absorption body 10 includes: a porous and tabular rock-wool sound absorption plate 12 of a flow resistance of 200-2000 [g/s*cm]; and a film body 18 in which many pores 16 arriving at the rock-wool sound absorption plate 12 are punched in a coated film 14 formed by applying a coating material to the sound wave arrival side of the rock-wool sound absorption plate 12.SELECTED DRAWING: Figure 1
【課題】基材の表面の平滑性が低いことが吸音性能に悪影響を及ぼすことを抑制する。【解決手段】吸音体１０は、流れ抵抗＝２００〜２０００[ｇ／ｓ・ｃｍ3]の多孔質で板状の岩綿吸音板１２と、岩綿吸音板１２の音波到来側に塗料が塗布されて形成された塗膜１４に、岩綿吸音板１２に達する細孔１６が多数穿設された膜体１８と、を含んでいる。【選択図】図１
SOUND ABSORPTION BODY
吸音体
HIDAKA TAKAYUKI (author) / NAKAGAWA TAKEHIKO (author)
2017-01-05
Patent
Electronic Resource
Japanese
SOUND ABSORPTION STRUCTURE AND SOUND ABSORPTION STRUCTURE BODY
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SOUND ABSORPTION STRUCTURE BODY, AND SOUND ABSORPTION STRUCTURE OF DUCT
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