Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Study on the Resistance Reduction of G/T 190ton Class Main Vessel in Korean Large Purse Seiner Fishing System

G/T 190톤급 한국 대형선망 본선의 저항저감에 대한 연구

  • Park, Ae-Seon (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University) ;
  • Lee, Young-Gill (Dept. of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Doo-Dong (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University) ;
  • Yu, Jin-Won (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University) ;
  • Ha, Yoon-Jin (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University) ;
  • Jin, Song-Han (Research Institute of Medium & Small Shipbuilding)
  • 박애선 (인하대학교 대학원 조선해양공학과) ;
  • 이영길 (인하대학교 항공.조선.산업공학부 조선해양공학전공) ;
  • 김두동 (인하대학교 대학원 조선해양공학과) ;
  • 유진원 (인하대학교 대학원 조선해양공학과) ;
  • 하윤진 (인하대학교 대학원 조선해양공학과) ;
  • 진송한 (중소조선연구원)
  • Received : 2012.02.23
  • Accepted : 2012.08.17
  • Published : 2012.10.20
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Abstract

In this study, hull form of main vessel of Korean large purse seiner fishing industry is developed for the improvement of resistance performance as well as for the satisfaction to the Standard of Fishing Convention, ILO. Through the modification of reference hull form parameters and local characteristics, the hull form development is carried out. The optimum hull form parameters are searched by Sequential Quadratic Programing(SQP) method with the power estimation method of Holtrop & Mannen. To minimize the wave resistance, bulbous bow parameters are determined by the bulbous bow design method of Alvarino. The plasmatic curve is redesigned from that of the reference hull by using Lackenby method. The resistance performances of the reference and designed hull forms are estimated by using numerical simulation method. Also, the judgment of seakeeping ability and the estimation of intact stability for the designed hull form is carried out. As a result, the optimum hull form is proposed. To verify the improvement of resistance performance, model tests are carried out in towing tank. The results show that the resistance of the designed hull form is about 14% smaller than that of the reference hull from at design speed. A new hull form proposed in this study can contribute to the development of the main vessel hull form of Korean large purse seiner fishing system.

Keywords

References

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