Analysis of Extreme Air Gaps of a SemiSubmersible Using #br#
Method of LHMoments

Abstract

Abstract:

For a semisubmersible operated in water at a depth of 1.5km, the sample data of the relative wave crests at different locations from an experiment were assumed to follow a twoparameter Weibull distribution and the method of LHmoments was used to estimate the parameters. Then, the exceedance probability distributions for different orders of LHmoments were obtained. The results show that as the order of LHmoments increases, the twoparameter Weibull distribution yields better trend of the large relative wave crests under the 1yearreturn sea state, and clearly a better fit of the large relative wave crests under the 100yearreturn sea state.

Key words: semisubmersible, air gap, twoparameter Weibull distribution, LHmoments, exceedance probability distribution

CLC Number:

TB 114

LIU Shuanga,b，XIAO Longfeia,b，KOU Yufenga. Analysis of Extreme Air Gaps of a SemiSubmersible Using #br# Method of LHMoments[J]. Journal of Shanghai Jiaotong University, 2017, 51(2): 209-.

References

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Analysis of Extreme Air Gaps of a SemiSubmersible Using #br# Method of LHMoments

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