海上外输漂浮软管的结构角度设计研究

Research on Structure Angle Design of Offshore Discharge Floating Hose

海上外输漂浮软管是FPSO外输原油的唯一通道,是复合型橡胶软管,具有结构复杂及材质多样性特点,且缺乏相关的设计规范及标准,理论体系尚不完善。使用有限元分析方法对一段典型结构的外输漂浮软管进行分层建模,分析其帘线层结构角度对拉伸和弯曲性能的敏感度,给出了不同工况下结构角度对拉伸和弯曲的影响,最后对外输漂浮软管实物进行试验验证,并与国际通用OCIMF标准进行比较,为指导以后管道的优化设计,实现外输漂浮软管国产化提供参考。

The offshore discharge floating hose, the only oil transferring channel of FPSO, is a composite of rubber hose, and has a complex structure and material diversity. However, there lacks of relevant design specifications and standards, and the theory system is still not intact. The model of the offshore offloading floating hose for the typical structure was established with the finite element analysis software; the sensibility of the cord winding angle on the tensile and bending properties was analysed. And the effect of the structure angle to the tensile and bending on different conditions was obtained. Finally, we verified the actual floating hose with experiment, and compared it with international OCIMF standard. The results can guide the future pipeline optimization design and provide a reference for the localization of the discharge floating hose.