Investigation on Optimization Design of an Equivalent Water Depth Truncated Mooring System Based on INSGA-Ⅱ  

作　　者：Huoming Zhang Wenjun Gao Qiang Wang Juan Jiang Zhou Zhao 

机构地区：[1]College of Metrology Technology and Engineering, China Jiliang University, Hangzhou 310018, China

出　　处：《Journal of Marine Science and Application》2012年第2期208-215,共8页船舶与海洋工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （Grant No. 10602055）;Natural Science Foundation of Zhejiang Province （Grant No. Y6110243）

摘　　要：At present,equivalent water depth truncated mooring system optimization design is regarded as the priority of hybrid model testing for deep sea platforms,and will replace the full depth system test in the future.Compared with the full depth system,the working depth and span are smaller in the truncated one,and the other characteristics maintain more consistency as well.In this paper,an inner turret moored floating production storage ＆ offloading system（FPSO） which works at a water depth of 320m,was selected to be a research example while the truncated water depth was 80m.Furthermore,an improved non-dominated sorting genetic algorithm（INSGA-II） was selected to optimally calculate the equivalent water depth truncated system,considering the stress condition of the total mooring system in both the horizontal and vertical directions,as well as the static characteristic similarity of the representative single mooring line.The results of numerical calculations indicate that the mathematical model is feasible,and the optimization method is fast and effective.

关 键 词：deep sea platforms hybrid model test equivalent water depth truncated mooring system optimization design 

分 类 号：O242.23[理学—计算数学] TS254.3[理学—数学]