Study on Exceeding Probability of Extreme Dynamic Response of Adjacent Floating Bodies under Random Waves by Using Active Learning Method
During offshore operations,there is often a situation where two floating bodies are adjacent.In the real marine environment,coupled motion may occur between adjacent floating bodies due to the influence of random waves.Especially in rough sea conditions,the extreme motion response of floating bodies can lead to accidents such as capsizing,which can cause serious hazards to offshore operations.Based on the wave group parameterization and sequential sampling,combining computational fluid dynamics(CFD)numerical simulation,the rolling motion characteristics of adjacent floating bodies in irregular waves is investigated and analyzed in this paper.The extreme response exceedance probability of floating bodies in random waves is efficiently predicted using a small number of samples based on the active learning method.Additionally,the effect of the distance ratio(G/D)between adjacent floating bodies on their motion response is studied.By predicting and comparing the time exceedance probability of adjacent floating bodies under different G/D ratios,the optimal distance between adjacent floating bodies is identified,providing a theoretical basis for practical engineering applications.
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