@article{oai:jaxa.repo.nii.ac.jp:00022494,
 author = {長井, 健一郎 and 鈴木, 優太郎 and 猪口, 雄三 and 生沼, 秀司 and 石井, 達哉 and 山崎, 伸彦 and Nagai, Kenichiro and Suzuki, Yutaro and Inokchi, Yuzo and Oinuma, Hideshi and Ishii, Tatsuya and Yamasaki, Nobuhiko},
 issue = {801},
 journal = {日本機械学会論文集Ｂ編, Transactions of the Japan Society of Mechanical Engineers. B},
 month = {May},
 note = {The main objective of this study is to apply active noise cancellation technique to the duct fan. In the acoustic field of a duct fan, the rotating acoustic modes are generated due to the interaction of stators and rotating blades. To achieve the essential elimination of dominant acoustic modes inside the duct, the accurate acoustic mode decomposition and the reproduction of anti-noise are both required. We build a real-time acoustic mode decomposition system with an array of microphones circumferentially mounted on the duct surface. The filtered-x LMS algorithm in the frequency domain form is developed with applying the result of mode decomposition as an error signal in order to achieve the elimination of a specific acoustic mode. An array of loudspeakers is equipped circumferentially onto the duct to generate "anti-noise" signal. A large noise reduction and rapid convergence with this method have been shown by the results., 資料番号: PA1420047000},
 pages = {739--743},
 title = {モード解析を用いたダクトファンのアクティブ消音},
 volume = {79},
 year = {2013}
}