本文展示了1艘应用于中国南海的FPSO单点系泊系统的设计与验证过程，介绍了系泊系统的设计衡准，给出了主要的强度与疲劳分析结果。计算表明；单点系泊系统在完整工况与单缆破损工况能够承受目标油田百年一遇环境条件，预期疲劳寿命满足设计要求。此外当波浪周期略低于设计海况的谱峰周期时，将激发起更大的船体低频运动进而导致最大的系泊张力。
This paper presents the design and verification approaches of a single point mooring system of a FPSO in South China Sea. The design criteria of mooring system is introduced and the brief results of strength and fatigue analysis are given. The results shows that the single point mooring system can withstand 100 year return period condition in the target oil field in both intact and one line damaged condition. The expected fatigue life can satisfy the design requirement. It also shows that when the wave period is slightly lower than the spectral peak wave period at the design basis, the larger low-frequency horizontal motion of the FPSO in low will be triggered so as to generate maximum tension in mooring lines.
2020,42(12): 169-176 收稿日期：2020-06-23
DOI：10.3404/j.issn.1672-7649.2020.12.034
分类号：TE952
基金项目：工信部创新专项；“十三五”国家科技重大专项项目
作者简介：赵晶瑞(1983-),男,博士,高级工程师,主要从事海洋工程结构物设计研发工作
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