755 ルーバとスリットを持つ開口部における能動騒音制御に関する研究(低騒音化技術I,OS-4 音響・振動,総合テーマ「伝統を,未来へ!」)

概要

論文の詳細を見る
The purpose of this study is about noise reduction by Active Noise Control (ANC) at the opening with a louver which attached Piezoelectric Card Speaker. In a house and an apartment not only machinery, louvers are used at large opening aimed for air conditioning and ventilation. Leakage of a sound from the opening set louver becomes a problem. In this experimental study, proposed ANC system is independent parallel control system using two single channel ANC systems. One of them, secondary noise source is set at each bane down side of louver. The other one is set slit of enclosure opening. The experimental results show that noise reduction is obtained from 5dB to 25dB in sound field on this proposed ANC system.
一般社団法人日本機械学会の論文
2010-09-14