Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Study on the Trim and Resistance of Small Catamaran Using Numerical Analysis and a Model Test

수치해석 및 시험을 통한 소형 쌍동선의 종경사 및 저항 연구

  • 김정은 ((재)한국조선해양기자재연구원) ;
  • 오우준 ((재)한국조선해양기자재연구원) ;
  • 홍춘범 ((재)한국조선해양기자재연구원) ;
  • 김도정 ((재)한국조선해양기자재연구원)
  • Received : 2018.04.30
  • Accepted : 2018.08.28
  • Published : 2018.08.31
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Abstract

In Designing a Small Ship, the Design of the Trim for Sailing has a great influence on the Stability of the Ship as well as Resistance. The Center of Gravity of a Ship is mostly determined during Initial Design. This Study confirms the Effect of Trim on changes in Vertical Center of Gravity by Numerical Analysis for a Small Catamaran. The Results were examined in a Model test. However, No Model tests were conducted while varying the changes in Vertical Center of Gravity. Nonetheless, Investigation was completed for the Purpose of presenting Vertical Center of Gravity results according to plans for the Trim during Initial Design of a Small Ship. In order to verify the Results of Numerical Analysis, a Comparison with Experimental results was carried out. Alternation of Trim angle and Resistance performance according to changes in the Center of Gravity were studied.

소형선박 설계에 있어 항주에 따른 설계 종경사 결정은 선체저항 뿐만 아니라 항주 안정성에 많은 영향을 주고 있다. 이는 초기 설계 시 선박의 무게중심 결정을 시작으로 대부분 결정된다. 본 연구는 소형 쌍동선박에 대해 수치해석을 통한 수직방향 무게중심 변화에 따른 종경사 영향을 확인하고, 이를 모형시험에서 결과를 검토하였다. 다양한 수직방향 무게중심 변화에 따른 모형시험 검토는 이뤄지지 못했지만, 향후 신조 소형선박 초기설계시 보다 나은 종경사 자세를 고려한 수직방향 무게중심 위치 제시를 목적으로 연구를 수행하였다. 수치해석 결과의 검증을 위하여 모형시험과 자세 비교를 수행하였다. 무게중심의 변화에 따른 종경사 각도 및 저항성능의 변화가 연구되었다.

Keywords

References

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