書誌事項
- タイトル別名
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- 111 Study on lock-in condition of edge-tone by disturbance sound
抄録
A sound level of noises generating from aero flow often grow by resonance of eddy fluctuation sound around structure objects and by lock-in phenomenon of the eddy fluctuation into the resonance sound frequency. An understanding of lock-in conditions is important to the control of the aero flow noise. We made a virtual resonance system in an edge-tone system by adding of disturbance sound to a part of the air nozzle and measured frequencies and sound pressure levels of the disturbance sound. This study evaluates the condition of lock-in phenomenon from the results. Edge tone locked in disturbance sound at about -18dB from the edge tone level without disturbance if the edge-tone frequency is close to disturbance frequency. If the edge-tone frequency is 20% away from disturbance, edge-tone locked in at a few dB lower than edge tone level.
収録刊行物
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- 環境工学総合シンポジウム講演論文集
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環境工学総合シンポジウム講演論文集 2010.20 (0), 39-41, 2010
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390001205836964352
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- NII論文ID
- 110008739802
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- ISSN
- 24242969
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可