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GM 및 종경사 변경에 따른 선박의 조종성능변화에 관한 실험적 연구An Experimental Study on the Manoeuvrability of a Ship in Different GM and Trim Conditions
- Other Titles
- An Experimental Study on the Manoeuvrability of a Ship in Different GM and Trim Conditions
- Issue Date
- 2020
- Publisher
- 대한조선학회
- Keywords
- Trim condition(종경사); GM(메타센터높이); Manoeuvrability(조종성능); KCS(KCS); FRMT(자유항주모형시험)
- Citation
- 대한조선학회 논문집, v.57, no.4, pp 230 - 240
- Pages
- 11
- Journal Title
- 대한조선학회 논문집
- Volume
- 57
- Number
- 4
- Start Page
- 230
- End Page
- 240
- ISSN
- 1225-1143
- Abstract
- The aim of this study was to investigate the manoeuvrability of a ship in different Center of Gravity (CG) conditions. Free Running Model Tests (FRMT), such as 35°turning circle tests, 20/20 zigzag manoeuvring tests, and 10/10 zigzag manoeuvring tests, were conducted in three GM and three trim conditions with 1/65.83 scaled KRISO Container Ship (KCS). The test results indicated that KCS in the lower GM condition and the trim by bow condition showed reduced advance and tactical diameter in turning circle tests and increased overshoot angles in zigzag tests, and those manoeuvring indices were strongly related with roll angle. In addition, sensitivity indices for three-axis CG position were suggested with prior research, and it showed that y-axis CG position significantly affected manoeuvrability of KCS due to the low GM. Therefore, in the case of KCS, it is evident that the roll angle during manoeuvre is closely related with manoeuvring indices.
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Collections - 선박연구본부 > Naval Ship Engineering Research Center > 1. Journal Articles
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