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

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.

发文机构：State Key Laboratory of Ocean Engineering Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration（CISSE） School of Naval Architecture

关键词：mooringsystemdeploymentdesignmethodologyNSGA-IIvaryingwaterdepths

分类号： P75[天文地球—海洋科学]