Abstract: The components of the multi-point mooring system are analyzed and selected according to the characteristics of the ship type and the operation sea area, in order to meet the design requirement of refitting a LNG carrier to a FSRU and to ensure the safety of the follow-up operation of the FSRU. A time-domain coupling analysis is carried out for the refitted mooring system under the environments of wind, wave and current by using the mooring calculation software, resulting in the maximum force and maximum displacement of the mooring line and anchor under the various operation conditions. The results show that the refitted mooring line and anchor can meet the engineering requirement, and the hull can meet the strength requirement due to the better controlled hull displacement. The relevant conclusions can also provide references for the design of other similar projects.

Key words: floating storage and regasification unit (FSRU), multi-point mooring system, mooring analysis, anchor selection

摘要： 为满足某LNG运输船改装FSRU项目的设计要求,确保FSRU后续作业过程的安全,针对船型特点及作业海域特性,对多点系泊系统的各组成部分进行分析及选型,采用系泊计算软件对风、浪、流环境下改造后的系泊系统进行时域耦合分析,得到各工况下缆绳和锚最大受力及最大位移,结果表明：改装后的系泊缆绳和锚能够满足工程使用需要,船体位移控制较好,满足强度要求。研究的相关结论也可为其他类似项目的设计提供一定参考。

关键词: 浮式储存及再气化装置, 多点系泊, 系泊分析, 锚选型