深水Spar钻采储运平台极限强度可靠性分析

Ultimate Strength Reliability Analysis of Deep-water Spar Drilling Production Storage Offloading platform

针对新型深水立柱式Spar钻呆储运平台(SDPSO)的结构特点进行极限强度可靠性研究,验证波浪弯矩年极值条件下其中间舱特殊储油系统结构的安全性。采用SESAM/Wadam软件对SDPSO平台进行水动力计算,利用序列统计法得到年极值分布;利用ABAQUS软件和改进的Rosenblueth法进行SDPSO平台极限强度计算,得到极限承载能力的概率分布。平台结构极限强度具有较高的安全水平,为深海立柱式海洋平台设计提供了依据和参考。

For a new deep-water Spar Drilling Storage Offloading （SDPSO） platform, its structural reliability of ultimate strength was analyzed The safety of special oil storage structure in the condition of annual extreme wave bending load was discussed A hydrodynamic analysis was performed to generate RAOs in SESAM/Wadam software. Sequence statistics method was used to gain annual extreme wave bending load distribution. ABAQUS and Rosenblueth method were used in ultimate strength calculation. SDPSO structure had high structural reliability level. Provided a useful theory basis and technology reference for the design of deep-water platform.