FPSO是海上油气开发的关键装备之一，采用单点系泊的FPSO艏向会随环境发生变化，对运动响应评估造成了困难。针对这个问题，首先介绍了对FPSO进行频域运动响应分析的基本方法。然后针对某单点系泊FPSO，依据法国船级社规范进行了系泊分析，得到了不同工况下的艏向，随后在艏向范围内进行了摇摆和升沉的响应分析。结果表明，流控制工况对艏向范围的影响很大，甚至会造成FPSO处于90°横浪方向，造成运动响应的大幅增加，在工程实践中需要对流的环境条件进行细致评估，避免设计结果考虑不足或过于保守。
FPSO is one of the key equipments for offshore oil and gas development. The heading angle of FPSO with single point mooring may change with the environment, which poses difficulties for evaluating motion response. For this issue, the basic theory of FPSO frequency domain motion response analysis is first introduced. Then, for a FPSO with single point mooring system, mooring analysis is conducted according to the Bureau Veritas(BV) regulations, and the heading angles under different environment conditions were obtained. Then, response analysis for rotation and heave were made within the calculated heading range. The results indicate that the current-goven condition has a significant impact on the heading range, and may even cause the FPSO to be in the 90° beam sea direction, resulting in a significant increase in motion response. In engineering practice, it is necessary to carefully evaluate the environmental conditions of the current to avoid insufficient or overly conservative consideration of the design results.
2025,47(13): 72-77 收稿日期：2024-8-27
DOI：10.3404/j.issn.1672-7649.2025.13.013
分类号：U664
基金项目：中海油集团关键核心技术攻关项目（KJGJ-2023-0001）
作者简介：李俊汲(1989-),男,硕士,高级工程师,研究方向为船舶与海洋结构物总体性能分析和系泊系统设计
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