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논문 기본 정보

자료유형
학술저널
저자정보
홍기섭 (인하공업전문대학) 김성찬 (인하공업전문대학) 안재욱 (라온엑스) 김성기 (대우조선해양)
저널정보
대한조선학회 대한조선학회 논문집 대한조선학회논문집 제46권 제5호
발행연도
2009.10
수록면
510 - 519 (10page)

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초록· 키워드

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Ship structure is composed of the welded mixture members which are plate and stiffeners. Ship structure is also influenced by variable loadings such as wave and inertia load. There have been several fatigue damage problems on the connection between longitudinal and transverse web due to wide usage of high tensile steel and adoption of wide web space to improve shipbuilding productivity. It is impossible to estimate the fatigue lives for all connection details through refined fatigue analysis. It is necessary to use the simplified approach for the fatigue life estimation of the connection details. PLUS analysis, which is suggested by the classification society, is one of the simplified approaches and is widely adopted to get fatigue lives for the connection details along whole cargo hold area. However, ship building yards still have difficulties to get fatigue lives due to large amount of calculation and time even if this approach reduce the time and amount of calculation. This paper treats the computing system developed to reduce efforts of estimating the fatigue lives. The influence factors of mean shear stress and local dynamic pressure are easily calculated and fatigue lives for all hot spots can be estimated automatically by the developed computing system. It is possible to reduce computing time and efforts to get the fatigue lives for the connection details between longitudinals and transverse webs along the ship. This system was applied to get fatigue lives on the connection details of a VLCC and verified the availability.

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Abstract
1. 서론
2. 피로수명 평가법
3. 피로수명 평가시스템의 구성
4. 피로수명 계산
5. 해석 예
5. 결과 및 고찰
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UCI(KEPA) : I410-ECN-0101-2013-559-001666065