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

The Society of Naval Architects of Korea (대한조선학회)
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Optimization of Sheet Arrangement of Membrane Panel in Korean LNG Cargo Containment System

한국형 LNG 화물창 멤브레인의 Sheet 배치 최적화

  • Kim, Yeong-Su (Department of Naval Architecture and Marine Engineering, Changwon National University) ;
  • Ham, Seung-Ho (Department of Naval Architecture and Marine Engineering, Changwon National University) ;
  • Park, Kwang-Phil (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
  • 김영수 (창원대학교 조선해양공학과) ;
  • 함승호 (창원대학교 조선해양공학과) ;
  • 박광필 (충남대학교 선박해양공학과)
  • Received : 2021.12.30
  • Accepted : 2022.01.28
  • Published : 2022.04.20
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Abstract

Membrane panels are installed in LNG cargo-hold in order to endure extremely low temperature LNG. Although there are several types of membranes around the world, Korean LNG cargo containment system is developing to accomplish technology independence from the other countries. The membrane panel of Korean LNG cargo containment system is composed of corrugation and flat sheets which are arranged asymmetrically. It is very important to reduce the number of the type of corrugation sheet because a mold is required as much as the type of the corrugation sheet. Therefore, we proposed an optimization method to minimize the type of the corrugation sheet. For this method, the number of pitches, which is the distance between the centers of two corrugation sheets should be minimized. We also developed optimized arrangement procedure of the flats simultaneously. Finally, the developed optimization program is applied to 174K LNG cargo hold, and the minimum pitch size is found.

Keywords

Acknowledgement

본 연구는 산업통상자원부 조선해양산업핵심기술개발사업 시장경쟁력 확보를 위한 BOR 0.07% 이하의 LNG 선박용 화물창 개발 (20012875), 2021년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업(2021RIS-003), 2021년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구 (P0017006, 2022년 산업혁신인재성장지원사업)임을 밝히며 감사를 드립니다.

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