Art

J-GLOBAL ID：200902217479789119   Reference number：08A0235938

Sound Attenuation by a Resonant Effect of a Rectangular Box Containing a Cylinder as a Model of a Ceiling-Mounted Ventilator

天井取付けベンチレーターの一つのモデルとしての円筒を内蔵する方形箱の共鳴効果による音響減衰

Author (3)： SADAMOTO Akira (Dep. of Mechanical Engineering, Chubu Univ.) ,  SHIRAHAMA Seiji (Environmental Technol. Res. Lab., Matsushita Ecology Systems Co., Ltd.) ,  TSUBAKISHITA Yasuji (Dep. of Mechanical Engineering, Chubu Univ.)
Material： Journal of Environment and Engineering (Web)  (J Environ Eng (Web))
Volume： 3  Issue： 1  Page： 13-24 (J-STAGE)  Publication year： 2008 
JST Material Number： U0025A  ISSN： 1880-988X  Document type： Article
Article type： 原著論文  Country of issue： Japan (JPN)  Language： ENGLISH (EN)

Thesaurus term： *ventilator ,  *acoustic attenuation ,  resonance ,  acoustic resonator ,  resonance frequency
Semi thesaurus term： acoustic attenuation

JST classification (2)： Propagation of sound waves  (BB03030G) ,  Ventilation  (PC02040B)

Reference (8)：

• (1) Kodama Y., Hayashi H., Ogino K. and Nozu H., Aerodynamic and Noise Characteristics of a Multi-Blade Centrifugal Fan (in Japanese), Transactions of the Japan Society of Mechanical Engineers, Series B, Vol. 72, No. 721 (2006), pp. 2178-2185.
• (2) Matsushita Seiko Co. Ltd., “Ceiling Mounted Ventilation Fan”, Japanese Patent P3279834 (2002).
• (3) El-Sharkawy A. I. and Nayfeh A. H., Effect of an Expansion Chamber on the Propagation of Sound in circular ducts, The Journal of the Acoustical Society of America, Vol. 63, No. 3 (1978), pp. 667-674.
• (4) Sadamoto A. and Murakami Y., Reduction of Discrete-Frequency Fan Noise Using Slit-Like Expansion Chambers, International Journal of Rotating Machinery, Vol. 9, No. 4 (2003), pp. 239-246.
• (5) Munjal M. L., Acoustics of Ducts and Mufflers, (1987), p. 11 and p. 71, John Wiley and Sons, Inc.

Terms in the title (7)： 天井 ,  取付け ,  ベンチレーター ,  モデル ,  方形 ,  共鳴効果 ,  音響減衰