帆船最小回转直径下风帆攻角研究

RESEARCH ON THE ANGLE OF ATTACK OF THE SAILBOAT UNDER THE MINIMUM TURNING DIAMETER

为使帆船具备更优的回转性能,探究风帆攻角操纵策略对帆船回转直径的作用规律。综合目标风帆作用力系数分别对不同风帆攻角方向和帆船回转方向的影响进行分析,获得不同风况下可利用风帆攻角范围;基于响应型三自由度船舶操纵分析(MMG)方法建立帆船运动仿真模型,分别生成帆船向右、向左回转下不同风况和风帆攻角对应的帆船回转直径簇,分析获得帆船最小回转直径控制下风帆攻角策略。研究结果为优化回转性能风帆攻角操纵策略的设计提供理论参考。

In order to make the sailboat have better turning ability,the effect rule of the sail angle of attack strategy on the turning diameter of the sailboat is explored.Combined with the target sail force coefficient,the impact of different sail angles of attack and direction of the sail turning were analyzed to obtain the range of angles of attack that could be used under different wind conditions.Based on the response-type three-degree-of-freedom ship maneuver analysis(MMG)method,the simulation model of sailing motion was established to generate the sailing diameter clusters corresponding to different wind conditions and sail angles of attack when the sailboat was turned to the right and left respectively,and the sail angle of attack strategy under the control of the sailing angle was analyzed and obtained.The research results provide a theoretical reference for the design of the sail angle of attack maneuver strategy for optimizing slewing performance.