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논문 기본 정보

자료유형
학술저널
저자정보
박규식 (포스코) 최한석 (포항공과대학교) 김도균 (PETRONAS 공과대학교) 유수영 (PETRONAS 공과대학교) 강수창 (포스코)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제29권 제1호
발행연도
2015.2
수록면
16 - 27 (12page)

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초록· 키워드

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The design challenges when attempting to obtain sufficient strength for a deepwater steel catenary riser (SCR) include high stress near the hang-off location, an elevated beam-column buckling load due to the effective compression in the touchdown zone (TDZ), and increased stress and low-cycle fatigue damage in the TDZ. Therefore, a systematic strength analysis is required for the proper design of an SCR. However, deepwater SCR analysis is a new research area. Thus, the objective of this study was to develop an overall analysis procedure for a deepwater SCR. The structural behavior of a deepwater SCR under various environmental loading conditions was investigated, and a sensitivity analysis was conducted with respect to various parameters such as the SCR weight, weight of the internal contents, hang-off angle (HOA), and vertical soil stiffness. Based on a deepwater SCR design example, it was found that the maximum stress of an SCR occurred at a hang-off location under parallel loading direction with respect to the riser plane, except for a wave dominant dynamic survival loading condition. Furthermore, the tensile stress governed the total stress of the SCRs, whereas the bending stress governed the total stress at the TDZ. The weight of the SCR and internal contents affected the maximum stress of the SCR more than the HOA and vertical soil stiffness, because the weight of the SCR, including the internal contents, was directly related to its tensile stress.

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ABSTRACT
1. 서론
2. SCR 해석방법 (MCS, 2005; Antrares, 2006; HOE, 2013)
3. 심해 SCR 해석예제
5. 결론
References

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UCI(KEPA) : I410-ECN-0101-2016-559-001255424