南海张力腿平台在位总体性能数值计算分析

In-Place Global Performance Numerical Analysis for TLP at South China Sea

系统阐述了张力腿平台(TLP)在位总体性能分析的设计工况分类原则及数值计算流程,简要介绍了频域及时域分析方法。结合南海TLP前端设计,重点介绍了TLP数值建模遵循的原则以及平台质量特性、张力筋腱和立管的刚度及外部阻尼的计算方法。最后通过实例计算给出南海环境条件下TLP在位总体性能计算结果。所用流程及方法可供南海深水浮式平台设计参考。

The load case category and numerical calculation procedure of tension leg platform （TLP） in-place global performance analysis are systematically stated. Meanwhile, the frequency domain method and time domain method are simply introduced. According to a TLP front end engineering design project at South China Sea, modeling princi- ples related to panel meshing, calculation methods of TLP mass properties, stiffness introduced by tendons and ris- ers, and TLP external damping are introduced. At last, the main results of in-place global performance analysis are listed. The procedure and methods used could be a reference for other analogous projects at South China Sea.