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低圧軸流送風機の共鳴騒音に関する研究 : 丸棒の位置、回転数および翼先端形状の影響

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Title: 低圧軸流送風機の共鳴騒音に関する研究 : 丸棒の位置、回転数および翼先端形状の影響
Other Titles: Resonance Tone Generated by Low Pressure Axial Flow Fans : Effects of Rod Location, Rotational Frequency and Blade Tip Profile on Resonance Tone
Authors: 児玉, 好雄 / 深野, 徹
Authors (alternative): Kodama, Yoshio / Fukano, Tohru
Issue Date: 25-May-1986
Publisher: 日本機械学会
Citation: 日本機械学會論文集. B編 52(477) p.2131-2136 1986
Abstract: 70% of the blade passing frequency and is correlated by a Strauhal number as f = S_t. W_D, where S_t = 0.2 and W is the relative velocity. D is the characteristic length, which is without exception equal to the integer multiple of 0.0078 t, where t is the blade pitch.">Resonance tone is minimized by reducing the tip clearance, say less than about 1 mm. Even in these conditions it occurs with a sufficiently high level if a rod is attached near the leading edge on the suction surface of the blade, as well as if a part of the blade tip is cut off. The fundamental resonance frequency, f, is about 60
Keywords: Fluid Machine / Resonance Tone / Fan Noise / Axial Flow Fan / Tip Clearance / Blade Tip Profile
URI: http://hdl.handle.net/10069/6723
ISSN: 03875016
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/6723

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