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A study on the maneuverabilities of the marine research vessel CHARMBADA

해양조사선 참바다호의 조종성능에 관한 연구

  • An, Young-Su (Institute of Marine Industry, Gyeongsang National University) ;
  • Bae, Gwang-Min (Institute of Marine Industry, Gyeongsang National University) ;
  • Jang, Choong-Sik (Institute of Marine Industry, Gyeongsang National University) ;
  • Jung, Yun-Soo (Institute of Marine Industry, Gyeongsang National University) ;
  • Kang, Il-Kwon (Department of Marine Production System Engineering, Pukyong National University) ;
  • Kim, Bo-Yeon (Institute of Marine Industry, Gyeongsang National University)
  • 안영수 (경상대학교 해양산업연구소) ;
  • 배광민 (경상대학교 해양산업연구소) ;
  • 장충식 (경상대학교 해양산업연구소) ;
  • 정연수 (경상대학교 해양산업연구소) ;
  • 강일권 (부경대학교 해양생산시스템관리학부) ;
  • 김보연 (경상대학교 해양산업연구소)
  • Published : 2010.02.28

Abstract

This study was intended to determine the maneuverability of the vessel CHARMBADA. When the rudder angle was at $10^{\circ}$, $20^{\circ}$ and $30^{\circ}$, the maximum advance by slow, half and full ahead were varied in the range of 523.6-131.3m, 528.8-177.2m and 530.6-219.7m, respectively. The maximum transfer was 799.9-181.3m, 792.1-232.8m and 807.7-316.9m, respectively. The turning circle ability was better during starboard turning. When the rudder angle was $10^{\circ}$, $20^{\circ}$ and $30^{\circ}$, variation in the maximum advances was 392.0m, 245.0m and 153.0m. The maximum transfer was 528.0m, 339.0m and 218.0m, respectively based on the regression equations. As the rudder angle became bigger, the maximum advance or maximum transfer became smaller by the exponential function. The advance inertia took 127sec, 145sec, 181sec each until the vessel speed was 7.0konts, 12.0konts, 17.0konts. The static inertia took 245sec, 269sec, 300sec each until the vessel speed was under 2.0konts and the advance distance was 114.4m, 181.2m, 197.0m each. Accordingly, the static inertia was inclined to increase to scale according to the increase in vessel speed. For the CHARMBADA, the smaller the rudder angle was, the much bigger the turning circle became due to adhesion to the skeg, thereby lowering the vessel's turning ability.

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