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논문 기본 정보

자료유형
학술저널
저자정보
장경호 (아띠) 김정훈 (한전) 송창용 (목포대학교)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제32권 제5호(통권 제144호)
발행연도
2018.10
수록면
324 - 332 (9page)

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초록· 키워드

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It is known that damages to the subsea cables used for electric power transmission between islands and countries, including renewable energy from offshore wind power, current, tides, etc., cost much to restore, which causes social and economic losses. Various types of fishing rigs and anchors have been reported to be the greatest hazards to subsea cables. It is possible to design and construct a suitable protection facility for a subsea cable by precisely estimating the underwater behavior of such hazardous apparatuses. In this study, numerical simulations of the underwater behaviors of various hazardous apparatuses were carried out using fluid-structure interaction (FSI) analysis as a basic study to simulate the actual behavior phenomena of hazardous apparatuses in relation to a subsea cable. In addition, the underwater drop characteristics according to the types of hazardous apparatuses were compared. In order to verify the accuracy of the FSI analysis method used in this study, we compared the test results for underwater drops of a steel ball bearing. Stock anchors, stockless anchors, and rocket piles, which were actually reported to be the cases of damage to subsea cables along the southwest coast of Korea, were considered as the hazardous apparatuses for the numerical simulations. Each hazardous apparatus was generated by a Lagrangian model and coupled with the fluid domain idealized by the Eulerian equation to construct the three-dimensional FSI analysis model. The accuracy of the numerical simulation results was verified by comparing them with the analytical solutions, and the underwater drop characteristics according to the types of hazard apparatuses were compared.

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ABSTRACT
1. 서론
2. 유체-구조 연성(FSI) 해석 방법
3. 베어링 강재 구체의 수중 낙하해석
4. 해저케이블 위해인자의 수중 낙하특성
5. 결론
References

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UCI(KEPA) : I410-ECN-0101-2018-454-003536106