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针对一个工作于墨西哥湾海域1500m水深的半潜式钻井平台,选择polyester PET,polyester PEN和HMPE三种合成纤维材料及不同轴向刚度进行系泊方案设计,考虑系泊线的非线性动态特性和平台与系泊线之间的相互影响,在时域内进行耦合计算分析.并与传统的锚链钢缆组合的悬链线式系泊方式进行比较,发现悬链线方式很难保证平台的活动半径在要求范围之内,而由新型纤维材料组成的张紧式系泊方式则能达到良好的定位效果.经进一步对三种材料系泊系统对平台运动和系泊线受力以及经济性的比较,确定polyester PET最满足此半潜式钻井平台的安全作业要求.
For a semi-submersible drilling platform operating at a water depth of 1500m in the Gulf of Mexico, three synthetic fiber materials, including polyester PET, polyester PEN and HMPE, and different axial stiffness are selected to design a mooring scheme. Considering the nonlinear dynamic characteristics of the mooring line and The interaction between platform and mooring line in the time domain coupling calculation and analysis.Compared with traditional mooring chain cable combination catenary mooring method and found that it is difficult to ensure catenary chain platform activities The radius is within the required range and the tensioned mooring system made of the new fiber material can achieve good positioning effect.Based on the further research on the force and economy of the platform mooring and mooring lines Comparison, to determine PET PET most meet the safety requirements of this semi-submersible drilling rig.