Structural Reliability Analysis of Deepwater Risers  in Catastrophic Ocean Environment

Abstract

Abstract: A reliability analysis methodology for deep-water riser systems in catastrophic sea state was presented. Based on the advanced time domain couple analysis for deep-sea platforms and finite element dynamic response analysis for risers, the load probability model in catastrophic environment was conducted using generalized extreme value (GEV) theory. Based on structural reliability technique, the limitstate model was developed and the reliability and sensitivity analysis was performed. This methodology takes coupling effect of deep-sea platforms fully into account, which can provide a useful method for reliability assessment of deep-water risers in catastrophic sea state.

Key words: deep-water riser, catastrophic sea state, reliability, generalized extreme value theory

CLC Number:

P752

CHEN Chang-Song, XUE Hong-Xiang, TANG Wen-Yong, HU Zhi-Qiang. Structural Reliability Analysis of Deepwater Risers in Catastrophic Ocean Environment[J]. Journal of Shanghai Jiaotong University, 2011, 45(04): 576-580.

References

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Structural Reliability Analysis of Deepwater Risers in Catastrophic Ocean Environment

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