以适用于南海海域作业的圆筒型浮式钻井生产储卸油系统(Floating Drilling Production Storage and Offloading System,FDPSO)为对象,研究不同阻尼板锥角下FDPSO垂荡和纵摇幅值变化规律.基于三维势流理论计算FDPSO所受波浪载荷,施加由不同方法计算得到的黏性阻尼,计算FDPSO的运动响应传递函数,采用谱分析方法预报垂荡、纵摇运动,计算不同锥角下二阶波浪载荷引起的纵摇运动响应.计算结果表明:圆筒型FDPSO垂荡运动相对较强,不过抗摇性能良好;阻尼板锥角的增大不利于FDPSO垂荡和纵摇运动响应的控制,二阶波浪载荷对圆筒型FDPSO纵摇运动响应具有较大的影响,应给予关注.
Motion Impact of Damping Plate Cone Angle on Cylindrical FDPSO
The cylindrical Floating Drilling Production Storage and Offloading System(FDPSO)applied in the South China Sea is taken as an example to study the change rule of FDPSO heave and pitch amplitude under different damping plate cone angles.The wave loads on FDPSO are calculated by three-dimensional potential flow theory,the viscous damping is acquired through different methods,and the response transfer function of FDPSO is calculated.The spectrum analysis method is used to forecast the heave and pitch response,and the pitch response caused by second order wave loads is calculated.The results show that:the heave movement of the cylindrical FDPSO is intense,but the anti-shake performance is good;the increase of the damping plate cone angle is not conducive to the control of FDPSO heave and pitch responses,and the second order wave loads are of huge influence on the pitch response of the cylindrical FDPSO,which should be paid attention to.
cylindrical Floating Drilling Production Storage and Offloading System(FDPSO)damping plate cone anglehydrodynamic responseviscous dampingsecond order wave load
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