冰区四季通用灯浮标的二阶波浪力计算

Computation of the Second-Order Wave Force of the Four-Season Lighted Buoy Used in Sea Ice Area

冰区四季通用灯浮标是一种为满足北方冬季冰冻港口一年四季的助航服务需求研制的新型灯浮标,二阶波浪力对其漂浮姿态和漂移运动有较大影响。文中研究了浮标受到的二阶波浪力的数值计算方法,计算了不同流速下罐形和锥形灯浮标的二阶波浪力。研究结果显示,罐形和锥形灯浮标受到的一阶波浪力相差不大,罐形的二阶波浪力明显小于锥形,具有一定的外形优势。

The four-season buoy used in freezing areas is a new type of buoy that can meet the needs of navigation aids in the winter frozen ports in high latitudes. The second-order wave force has a great influence on its floating attitude and drift movement. In this paper, the numerical calculation method for the second-order wave force of the buoy is studied, with the second-order wave forces of lighted buoy and conical buoy respectively calculated at different flow velocities. The results show that the first-order wave forces received by the can buoys and conical buoys are not very different, and the second-order wave forces of can buoys are significantly weaker than the conical buoys, which means that the can buoy has a certain shape advantage.