一种新型复合系缆对单点系泊FPSO水动力性能的影响分析

以胡克定律及复合系缆在力的作用下不同组成成分伸长量相同为出发点，计算出新型复合系缆的轴向刚度。应用三维势流理论以及非线性时域耦合的方法，研究以新型复合系缆作为系泊系统时FPSO的水动力性能，并与“钢链一钢缆一钢链”、“钢链-聚酯缆-钢链”等传统复合系缆作对比。研究表明：新型复合系缆水动力性能优异，经济性能良好，为FPSO单点系泊系统的设计和研究提供有效参考。

Investigation the Hydrodynamic Performance of Single Point Moored FPSO with a New Hybrid Line

Based on Hooke＇s law and the different components of the hybrid mooring line have same elongation in force, the new axial stiffness of hybrid mooring line had been calculat- ed. The hydrodynamic performance of FPSO with single point moored system which the new hybrid was applied have been investigated, using Three-dimensional potential flow theory and nonlinear time domain coupled method, and compared with the hybrid line of ＂ chain-rope- chain＂ and the hybrid line of ＂ chain-polyester-chain＂. It is concluded that the new hybrid line have a good hydrodynamic performance, and the economic performance is perfect also. It is offer an effective reference during the design and research of single point moored FPSO.