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发布时间：2019-03-11

论文类型：期刊论文

发表时间：2011-01-01

发表刊物：Journal of Ocean University of China

收录刊物：Scopus

卷号：10

期号：2

页面范围：127-134

ISSN号：16725182

摘要：By applying experimental and numerical simulations, the motion performance of a semi-submersible platform with mooring positoning system under combined actions of wind and waves is studied. The numerical simulation is conducted by the method of nonlinear time domain coupled analysis, and the mooring forces are calculated by the piecewise extrapolating method. The scale in the model experiment is 1:100, and the mooring system of the model is designed with the method of equivalent water-depth truncation by comparing the numerical and the experimental results, the platform motion and mooring forces subject to wind and waves are investigated. The results indicate that the numerically simulated mooring forces agree well with the experimental results in static equivalent field, but show some difference in dynamic equivalent field; the numerically simulated platform motions coincide well with the experimental results. The maximum motion of the platform under operating conditions is 20.5 m. It means that the horizontal displacement is 2% less than the water depth, which satisfies the operating requirements. ? 2011 Science Press, Ocean University of China and Springer-Verlag Berlin Heidelberg.