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In order to prevent accidents such as direct contact with other ships and obstacles on the sea floor, we continuously observed the whirling motion at a single anchor by using the DGPS. The results are as follow. 1) At a Beaufort\u0027s wind scale (wind force henceforth) of 2 and under, the wind directed against the anchor chain side and a slow whirling of the bow was observed. 2) At a wind force between 3 and 4, a regular elliptic motion was observed. 3) At a wind force 5, a distorted figure 8 movement forming unequal lobes was observed. 4) At a wind force 6, an amplified movement during wind force 5 was observed. 5) At a wind force 7, the relative heading angle formed in both the right and left sides with respect to the wind direction became equal, and a maximum whirling-breadth of 82 meters was measured. 6) When Nagasaki Maru is anchored on a single chain, the following equation for the average distance of transverse movement \"d\" and degree of whirling \"a\" with respect to wind speed \"v\" was determined. 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長崎丸における単錨泊中の振れ回り運動からみた安全水域について
http://hdl.handle.net/10069/21511
http://hdl.handle.net/10069/215117436731d-4cc4-4f12-afa4-e5799a58a9ed
名前 / ファイル | ライセンス | アクション |
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110006279666.pdf (738.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-04-08 | |||||
タイトル | ||||||
タイトル | 長崎丸における単錨泊中の振れ回り運動からみた安全水域について | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 単錨泊 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 船体振れ回り | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 練習船長崎丸安全水域 | |||||
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 | journal article | |||||
著者 |
森井, 康宏
× 森井, 康宏× 山脇, 信博× 西田, 英明× 筒井, 博信× 高木, 保昌× 合田, 政次 |
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著者別名 | ||||||
姓名 | Morii, Yasuhiro | |||||
著者別名 | ||||||
姓名 | Yamawaki, Nobuhiro | |||||
著者別名 | ||||||
姓名 | Nishida, Hideaki | |||||
著者別名 | ||||||
姓名 | Tutui, Hironobu | |||||
著者別名 | ||||||
姓名 | Takaki, Yasuaki | |||||
著者別名 | ||||||
姓名 | Goda, Masaji | |||||
その他のタイトル | ||||||
その他のタイトル | On the Safety Area of the Nagasaki Maru's Whirling Motion at Single Anchor | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Estimating Nagasaki Maru's whirling motion at single anchor is very important for the Captain and deck officers. In order to prevent accidents such as direct contact with other ships and obstacles on the sea floor, we continuously observed the whirling motion at a single anchor by using the DGPS. The results are as follow. 1) At a Beaufort's wind scale (wind force henceforth) of 2 and under, the wind directed against the anchor chain side and a slow whirling of the bow was observed. 2) At a wind force between 3 and 4, a regular elliptic motion was observed. 3) At a wind force 5, a distorted figure 8 movement forming unequal lobes was observed. 4) At a wind force 6, an amplified movement during wind force 5 was observed. 5) At a wind force 7, the relative heading angle formed in both the right and left sides with respect to the wind direction became equal, and a maximum whirling-breadth of 82 meters was measured. 6) When Nagasaki Maru is anchored on a single chain, the following equation for the average distance of transverse movement "d" and degree of whirling "a" with respect to wind speed "v" was determined. Moreover, the maximum distance of transverse movement was determined as approximately 1.5 times the value of "d". d=k1_v a=k_2v+5 d : the average distance of transverse movement (m) k_1 : 2.0 [1/knot] v : wind speed (knot) a : degree of whirling (°) k_2 : 1.0 [1/knot] | |||||
書誌情報 |
水産工学 en : Fisheries engineering 巻 41, 号 2, p. 95-105, 発行日 2004-10 |
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出版者 | ||||||
出版者 | 日本水産工学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09167617 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10278554 | |||||
権利 | ||||||
権利情報 | 日本水産工学会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
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 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 水産工学, 41(2), pp,95-105; 2004 |