A Mooring System Deployment Design Methodology for Vessels at Varying Water Depths  

作　　者：XU Sheng-wen LIANG Ming-xiao WANG Xue-feng DING Ai-bing 

机构地区：[1]State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE),Shanghai 200240,China [3]School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《China Ocean Engineering》2020年第2期185-197,共13页中国海洋工程（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.51709170 and 51979167);the Ministry of Industry and Information Technology of China(Mooring position technology:floating support platform engineering(II));the Shanghai Sailing Program(Grant No.17YF1409700)

摘　　要：In this paper,a methodology for designing mooring system deployment for vessels at varying water depths is proposed.The Non-dominated Sorting Genetic Algorithm-II(NSGA-II)is combined with a self-dependently developed vessel-mooring coupled program to find the optimal mooring system deployment considering both station-keeping requirements and the safety of the mooring system.Two case studies are presented to demonstrate the methodology by designing the mooring system deployments for a very large floating structure(VLFS)module and a semi-submersible platform respectively at three different water depths.It can be concluded from the obtained results that the mooring system can achieve a better station-keeping ability with relatively shorter mooring line when deployed in the shallow water.The safety factor of mooring line is mainly dominated by the maximum instantaneous tension increment in the shallow water,while the pre-tension has a decisive influence on the safety factor of the mooring line in the deep water.

关 键 词：mooring system deployment design methodology NSGA-II varying water depths 

分 类 号：U674.38[交通运输工程—船舶及航道工程]