Multi-Objective Optimization of A Semisubmersible for Ultra-Deep Water |
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| Authors: | CHEN Xin-quan TAN Jia-hua |
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| Affiliation: | School of Naval Architecture, Ocean and Civil Engineering, Shanghai JiaoTong University, Shanghai 200030, China |
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| Abstract: | Semisubmersible will work well when oil exploitation goes to ultra-deep water because of its variable load capacities, and good motion performance in extreme waves. It is considered to be a main type of platform while the water depth is more than 3000 meters. This paper establishes a multi-objective optimization model of semisubmersible for ultra-deep water, and it is solved by a multi-objective genetic algorithm-NSGA-II. The model is applied to a practical design, and Pareto results are obtained. The effectiveness of the method is verified by hydrodynamic analysis. |
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| Keywords: | semisubmersible ultra-deep water hull steel weight heave multi-objective optimization Pareto hydrodynamics |
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