内孤立波载荷作用下钻井船动力定位性能

采用自主编写的动力定位时域仿真程序，以某钻井船为例，对内孤立波载荷进行建模并进行时域仿真。将内孤立波纳入环境载荷中，得到船舶在内孤立波下的动力定位时域仿真结果。获得船舶的作业窗口区间为 。结合船舶运动响应与推进器功耗情况对船舶动力定位性能进行评估，并提出船舶遭遇内孤立波时的海上操作建议。

Dynamic Positioning Performance of Drilling Ship Under Internal Solitary Wave Load

The self-written dynamic positioning time-domain simulation program is adopted. Taken a drilling ship as an example, the internal solitary wave load is modeled and time-domain simulation is performed. The internal solitary wave is incorporated into the environmental load, and the time-domain simulation results of the dynamic positioning of the ship under internal solitary waves are obtained. It is obtained that the operating window interval of the ship is . The dynamic positioning performance of the ship is evaluated based on the motion response of the ship and the power consumption of the propeller, and the recommendations for marine operations when the ship encounters internal solitary waves are put forward.