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長崎丸が発する水中騒音の特性:速力と距離が音圧および周波数に及ぼす影響
http://hdl.handle.net/10069/37104
http://hdl.handle.net/10069/37104aa9be0d1-8995-4b0e-8818-a1b55451693c
名前 / ファイル | ライセンス | アクション |
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suisan98_11.pdf (2.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-03-31 | |||||
タイトル | ||||||
タイトル | 長崎丸が発する水中騒音の特性:速力と距離が音圧および周波数に及ぼす影響 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 音響解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 周波数解析 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 音圧 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Noise Analysis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | FFT | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Noise Pressure | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
楠本, 成美
× 楠本, 成美× 八木, 光晴× 木下, 宰× 山脇, 信博× 森井, 康宏× 清水, 健一 |
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著者別名 | ||||||
姓名 | Kusumoto, Narumi | |||||
著者別名 | ||||||
姓名 | Yagi, Mitsuharu | |||||
著者別名 | ||||||
姓名 | Kinoshita, Tsukasa | |||||
著者別名 | ||||||
姓名 | Yamawaki, Nobuhiro | |||||
著者別名 | ||||||
姓名 | Morii, Yasuhiro | |||||
著者別名 | ||||||
姓名 | Shimizu, Kenichi | |||||
その他のタイトル | ||||||
その他のタイトル | Effects of Ship Speed and Propagation Distance on Pressure and Frequency of Underwater Noise Emitted from the Nagasaki Maru | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Reduction of underwater noise emitted from ships is considered important for preserving and protecting marine mammals and for increasing the precision of ultrasonic instruments. However quantitative reports on underwater noise emitted by ships are scarce. In the present study, the characteristics of underwater noise emitted from the Nagasaki Maru were surveyed. The effects of ship speed and propagation distance on the pressure and frequency of the detected noise were assessed. Ship noise was recorded by a small stationary vessel equipped with digital hydrophone. The Nagasaki Maru sailed at 3 kt, 7 kt and 10 kt in a circle, at a constant distance from the recording vessel. The measured sound pressure level generated by the Nagasaki Maru was slightly higher than the desirable level, but similar to that of other newly built research ships. Sound pressure increased logarithmically with decreasing distance from the ship. Peak sound pressure was detected at approximately 300 Hz at 3 kt, 7 kt and 10 kt; however, the 500?600 Hz band also showed stronger sound pressure at 7 kt and 10 kt. |
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書誌情報 |
長崎大学水産学部研究報告 en : Bulletin of the Faculty of Fisheries Nagasaki University 巻 98, p. 11-15, 発行日 2017-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05471427 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178473 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 長崎大学水産学部 | |||||
出版者別言語 | ||||||
The Faculty of Fisheries, Nagasaki University | ||||||
sortkey | ||||||
03 | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学水産学部研究報告, 98, pp.11-15; 2017 |