블록의 변형을 고려한 T형 리프팅 러그의 강도 평가
Strength Assessment of T-type Lifting Lugs Considering Deformation of Blocks
2
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
Lifting lugs are frequently used in shipyards to transport and turn over the blocks of ships and offshore structures. With the development of shipbuilding technology, blocks have increased in size, and block management technology has assumed a more important role in shipbuilding to enhance the productivity. For the sake of economics, as well as the safe design of a lug structure, a more rational design procedure based on a rigorous structural analysis is needed. This study investigated the strength characteristics of T-type lugs, considering the influence of blocks on which lugs are attached, by varying the in-plane and out-of-plane load direction. In this paper, the ultimate strength is also addressed for cases that include or do not include blocks in the strength analysis. In the present results, when there was a load acting in the normal direction to the block surface, the strength characteristics became poor, and the ultimate strength decreased. This paper ends by describing the need for further study to develop a more rational design for a lug structure.
Abstract
Lifting lugs are frequently used in shipyards to transport and turn over the blocks of ships and offshore structures. With the development of shipbuilding technology, blocks have increased in size, and block management technology has assumed a more important role in shipbuilding to enhance the productivity. For the sake of economics, as well as the safe design of a lug structure, a more rational design procedure based on a rigorous structural analysis is needed. This study investigated the strength characteristics of T-type lugs, considering the influence of blocks on which lugs are attached, by varying the in-plane and out-of-plane load direction. In this paper, the ultimate strength is also addressed for cases that include or do not include blocks in the strength analysis. In the present results, when there was a load acting in the normal direction to the block surface, the strength characteristics became poor, and the ultimate strength decreased. This paper ends by describing the need for further study to develop a more rational design for a lug structure.
참고문헌 (11)
- 함주혁, "하이브리드 구조설계 시스템을 이용한 선박블록 탑재용 러그구조 고찰", 한국해양공학회지, 23(2), pp.104~109 (2009), 한국해양공학회
- 허남학, "리프팅 러그의 구조 강도 평가", 대한조선학회 논문집, 51(1), pp.42~50 (2014), 대한조선학회
- Heo, N. H., "A Study on the Evaluation of the Structural Strength for Lifting Lug", Proceedings of the Annual Autumn Conference, Society of Naval Architects of Korea, pp.750~755 (2013)
- 김상일, "리프팅 러그 재사용율 제고를 위한 설계", 대한조선학회 논문집, 40(4), pp.9~65 (2003), 대한조선학회
- 김상일, "블록 리프팅 시 Hopper Tank부 균열 발생 가능성 검토를 위한 구조해석", 한국해양공학회지, 20(1), pp.16~19 (2006), 한국해양공학회
- 구남국, "최적 러그 배치를 위한 골리앗 크레인의 와이어 로프와선체 블록간의 동적 접촉력 계산", 한국전산구조공학회논문집, 25(5), pp.375~380 (2012), 한국전산구조공학회
- Lee, J. S., "The Strength Assessment and Design of T-type Lifting Lug", Proceedings of the Joint Conference of the Korean Association of Ocean Science and Technology Societies (KAOSTS), pp.814~819 (2014)
- Lee, S. J., "Strength Assessment of Padeye Hole and Lug Structure Assessment of Block Lifting Lug through Experiments", Proceeding of the Korea Association of Ocean and Technology Societies, pp.597~606 (2012), EXCO
- Min, D. K., "A Study on the Optimization of Lifting Lug for Block Erection", Special Issue of the Society of Naval Architects of Korea, pp.82~89 (2011)
- Design and Strength Analysis of Lifting Lugs, "Seo, S. K.", Special Issue of the Society of Naval Architects of Korea, 51~54 (2011)
- Simulia, "Introduction to Abaqus" (2013), BB-Media