摘要
为保证海上油气生产储油装置FPSO能够抵御百年一遇的恶劣海况,其水动力特性及系泊系统载荷特性的研究就显得十分必要。基于此,利用ANSYS-AQWA的频域模块AQWA-LINE预报了FPSO水动力系数和运动响应,并采用模型做静水衰减的数值实验获得了横摇阻尼系数;利用时域模块AQWA-DRIFT对FP-SO船体和系泊系统进行耦合数值分析,计算了内转塔单点系泊定位下FPSO运动性能和系泊缆的张力特性。最后采用论文中提出的分析方法,在最新统计数据下,评估了某FPSO能否抵御百年一遇海况。
To ensure the safety of FPSO working in the ocean under hundred-year extreme conditions, it isvery necessary to research on the hydrodynamic characteristics and load characteristics of mooring system.Based on this, frequency domain program AQWA-LINE of software ANSYS-AQWA was used to forecastFPSO hydrodynamic coefficients and the response of motion. Roll damping coefficients were obtained by nu-merical simulations of decay test in still water. The time domain program AQWA-DRIFT was used to ana-lyze the coupling effect of FPSO hull and mooring system. The motion performance of FPSO with singlepoint mooring positioning and tension properties of mooring line were calculated. Finally, the analysis meth-od proposed in this paper was used to evaluate whether the FPSO could resist the hundred-year extremeconditions based on the latest statistics.
出处
《河南科技》
2016年第9期41-46,共6页
Henan Science and Technology
关键词
FPSO
系泊系统
水动力特性
耦合数值分析
FPSO
mooring system
hydrodynamic characteristics
coupled numerical analysis
