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논문 기본 정보

자료유형
학술저널
저자정보
Min Jun Lee (Korea Maritime and Ocean University) Hyo Jae Jo (Korea Maritime and Ocean University) Sung Wook Lee (Korea Maritime and Ocean University) Jea Hyuk Hwang (Korea Maritime and Ocean University) Jea Heui Kim (Korea Maritime and Ocean University) Young Kyu Kim (Korea Maritime and Ocean University) Dong Il Baek (Korea Maritime and Ocean University)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제34권 제5호(통권 제156호)
발행연도
2020.10
수록면
285 - 293 (9page)

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초록· 키워드

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This study evaluated the Hook-up installation of an offshore site construction process, which is the final step in an offshore site installation process. During Hook-up installation, the offshore structure can have a detrimental effect on the work stability due to low-frequency motion. Moreover, economic costs can be incurred by the increase in available days of a tugboat. Therefore, this study developed a numerical analysis program to assess the dynamic behavior of mooring systems during hook-up installation to analyze the generally performed installation process and determine when the tugboat should be released. In this program, the behavior of an offshore structure was calculated using Cummin’s time-domain motion equation, and the mooring system was calculated by Lumped mass method (LMM). In addition, a tugboat algorithm for hook-up installation was developed to apply the Hook-up procedure. The model used in the calculations was the barge type assuming FPSO (Floating production storage and off-loading) and has a taut mooring system connected to 16 mooring lines. The results of the simulation were verified by comparing with both MOSES, which is a commercial program, and a calculation method for restoring coefficient matrix, which was introduced by Patel and Lynch (1982). Finally, the offset of the structure according to the number of tugboats was calculated using the hook-up simulation, and the significant value was used to represent the calculation result.

목차

ABSTRACT
1. Introduction
2. Theoretical Background
3. Validation of the Program
4. Hook-up Simulation
5. Conclusion
References

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