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The stability of the side trawler operating in East Sea of Korea

동해구 현측식 트롤 어선의 복원성

  • Jo, Hyo-Jae (Div. of Naval Architecture and Ocean System Engineering, Korea Maritime University) ;
  • Kang, Il-Kwon (Div. of Marine Production System management, Pukyong National University) ;
  • Kwon, Byong-Guk (Div. of Marine Production System management, Pukyong National University) ;
  • Ham, Sang-Jun (Dep. of Fisheries Physics, Graduate school, Pukyong National University) ;
  • Park, Chi-Wan (Dep. of Fisheries Physics, Graduate school, Pukyong National University)
  • 조효제 (한국해양대학교 조선해양시스템공학부) ;
  • 강일권 (부경대학교 해양생산시스템관리학부) ;
  • 권병국 (부경대학교 해양생산시스템관리학부) ;
  • 함상준 (부경대학교 대학원) ;
  • 박치완 (부경대학교 대학원)
  • Received : 2014.08.07
  • Accepted : 2014.08.23
  • Published : 2014.08.31

Abstract

Trawlers are divided into stern and side types by the method of shooting and hauling net, but the latter is difficult to find beside Korea. In East Sea of Korea, the side type used to be in early 2000's, but it improved to stern type because of its inefficient operating method. The aims of this paper is to make clear the stability of the side trawler in the East Sea, and then confirm whether it satisfy the IMO rule or not, the degree of the transverse inclining angle of the ship when hauling net at hull side. In results, the stability of the ship in initial inclining range satisfied the IMO rule and the domestic rule, but not satisfied those rule in over the range. The limit load of the ship that was coincide with the angle of beam end in hauling net at side was about 26 tons, 18 tons in normal sea condition and storm warning condition respectively. The transverse inclining angles of the ship in hauling net were much higher from 3.3 to 5.5 times than the longitudinal inclining angle of the stern trawler, although those angles were slightly changed with depending on the loading and sea condition.

Keywords

Side trawler;Stern trawler;Stability;Operating method;Inclining angle;Hauling net

Acknowledgement

Supported by : 부경대학교

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  1. Development of Stability Index for Vessel Operators Support System vol.24, pp.1, 2018, https://doi.org/10.7837/kosomes.2018.24.1.001