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2機2軸2舵船「鶴洋丸」の旋回性能に関する考察‐Ⅱ


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Title: 2機2軸2舵船「鶴洋丸」の旋回性能に関する考察‐Ⅱ
Other Titles: A Study on the Turning Ability of Twin-engine, Twin-propeller, and Twin-rudder ship “KAKUYO MARU”‐Ⅱ
Authors: 下田, 真子 / 兼原, 壽生 / 木下, 宰 / 森井, 康宏 / 高山, 久明
Authors (alternative): Shimoda, Masako / Kanehara, Hisao / Kinoshita, Tsukasa / Morii, Yasuhiro / Takayama, Hisaaki
Issue Date: Mar-2012
Publisher: 長崎大学水産学部 / The Faculty of Fisheries, Nagasaki University
Citation: 長崎大学水産学部研究報告, 93, pp.1-10; 2012
Abstract: We made a turning trial of a twin-engine, twin-propeller, and twin-rudder ship “KAKUYO MARU”, that has equipped the two sets of main engines and rudders, and a comparison was made between two engines and one engine as well as between two rudders and one rudder about the factors of turning. The trial results are stated below. 1) Comparing to the operation of two engines, the ratio of steady turning diameter (D/L), the speed reduction rate (RATE), and the time for turning (TIME) were large when the position of engine and the turning direction was the same. And, these decreased when rudder angle was large. Also, the drift angle (ANGLE) was small and increased when rudder angle was large. 2) In comparison with using two engines, D/L and TIME when using one engine and turning to the opposite direction of engine position were small and increased when rudder angle was large. Also, the RATE and ANGLE were large and decreased when rudder angle was large. 3) When using one engine, D/L and TIME of turning by one rudder were 1.1 to 1.6 times larger than these of turning by two rudders at both turning directions and decreased when rudder angle was large. Also, RATE and ANGLE were as small as 0.7 to 1.0 times and increased when rudder angle was large.
Keywords: 定常旋回径比 / Ratio of the steady turning diameter / 主機関両舷・片舷 / Two engines and one engine / 舵連動・手動 / Two rudders and one rudder
URI: http://hdl.handle.net/10069/28758
ISSN: 05471427
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No. 93

Citable URI : http://hdl.handle.net/10069/28758

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