摘要
海洋结构物系泊系统设计和分析对其安全操作至关重要,以往的研究大多集中于深水平台。将对浅水中作业的方形FPSO系泊系统动力特性展开研究,分析对比浅水中钢链和聚酯缆两种系泊系统的动力特性和浮体位移,并根据API规范校核自存工况下系缆强度并验证浮体在浅水中是否会触底,之后根据结果确定合理的系泊系统设计方案。分析方法基于三维势流理论和浮体运动的耦合时域模拟,浮体水动力分析中考虑浅水效应,计算了二阶波浪的二次传递函数矩阵,系缆张力分析基于有限元理论。结果表明聚酯缆系泊系统更适用于浅水区域作业的FPSO。
The design and analysis of mooring system,which would probably affect the safety of operation,are important for an offshore platform.Previous studies mostly concern about the case in deep water.A rectangle-FPSO operating in extremely shallow water is considered in this paper.Dynamic analysis to reach cable tension and vessel offset is carried out.Comparison between two different kinds of mooring systems is presented as well.Further,cable tension in the survival condition is checked according to API rules and whether the FPSO would hit the seabed is also verified.At last,a reasonable design proposal is given.The analysis is carried out based on three-dimensional potential flow theory.Full QTF if necessary in shallow water and is solved.Cable dynamics are dealt with FEM method.Results show that polyester cables are superior in shallow water.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第5期60-65,72,共7页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51279179)
关键词
FPSO
系泊系统
浅水
动力分析
FPSO
mooring system
shallow water
dynamic analysis
