中文摘要：

圆筒型深海钻井储油平台（Floating drilling storage offloading,FDSO）是未来深水石油钻探平台的发展趋势,其建造方式采用直接在水上＂分层划分,漂浮叠加＂的浮态制造方法,具有成本低、效率高、适应性强的优点。在分段分层划分的工艺规程中,一方面需要减少分段数量,以满足精度要求,保证建造质量,另一方面又不能使分段数目过少,各分段质量过大,从而对稳定性造成较大影响。针对上述矛盾,提出稳定性分析的理想条件假设和叠加工艺原则,构建数学优化模型,提出程序计算流程,并通过实例验证,将分段在吊装前优化整合,组成满足设计要求的模块整体进行吊装,得到基底上层分段合理的划分方法,保证建造精度,减少焊缝,满足稳定性要求,提高效率。

英文摘要：

Cylindrical floating drilling storage offloading（FDSO） is tended to develop for future.It is built by superimposing construction directly on the water using floating manufacturing method,which has significant advantages of low cost,high efficiency and adaptability.In the technical rules of segments division,it is necessary to meet the accuracy requirements to reduce the number of segments,which again with ensuring the stability which may be caused excessive effect by segments weight during the construction process.As facing these contradictions,a new process principles and mathematical optimization model with ideal conditions assuming of stability analysis is proposed,the model can integrate segments before lifting,so that reasonable division method of segments can be obtained.Then calculation process and examples of authentication are proposed.With this approach,it ensures the precision of the construction,fewer welds,stability requirements and high efficiency.