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论文类型：期刊论文

发表时间：2014-11-02

发表刊物：SHIPS AND OFFSHORE STRUCTURES

收录刊物：SCIE、EI

卷号：9

期号：6

页面范围：557-568

ISSN号：1744-5302

关键字：equivalent mooring system; truncated mooring system; damping characteristic; optimised design; static characteristics

摘要：An innovative approach is developed to design equivalent truncated mooring system for hybrid model testing. Considering the gravity, tension, current force and mooring line extension, the piecewise extrapolating method is employed to the static analysis of the multi-component mooring line. In addition, the quasi-static approach and dissipated energy model are used to figure out the mooring-induced damping of mooring system. Employing genetic algorithm, an optimised design program is developed to design equivalent truncated mooring system based on the similarity of both static and damping characteristics. Considering the catenary, semi-taut and taut mooring systems used for some semi-submersible platform of 1500m water depths, equivalent truncated mooring system is designed by using the design program in this paper, respectively. The results prove that the design program is available for all common types of deep water mooring system and can be used for hybrid model testing.