浸没式外输浮筒的动力响应影响

针对南海边际油田开发实际项目中概念设计的浸没式外输浮筒开展水动力响应分析和时域耦合分析，研究不同阻尼比、浮筒不同几何形状对浸没式外输浮筒水动力性能和时域运动响应以及系泊线张力的影响。结果表明：阻尼越大、浸没式浮筒几何形状越细长，浮筒的时域运动响应和锚链张力越小；几何形状对浮筒频域、时域运动响应的影响趋势不同。

Influence of Dynamic Response of Submerged External Transport Buoy

The hydrodynamic response analysis and time-domain coupling analysis are carried out for a submerged external transport buoy conceptually designed in the actual development project of the marginal oilfield in the South China Sea. The effects of different damping ratios and geometrical shapes of the buoy on the hydrodynamic performance and time-domain motion response of the submerged external transport buoy and the tension of the mooring lines are studied. The results show that: the larger the damping is and the longer the geometry of the submerged buoy is, the smaller the time domain motion response of the buoy and the tension of the mooring lines are; the geometrical shape is of different influence on the frequency domain and time domain motion response of the buoy.