Abstract: With the growing global emphasis on environmental protection and sustainable development, the shipping industry is facing severe pressure to reduce emissions and save energy. As a clean and renewable energy source, wind energy demonstrates significant potential in the field of ship auxiliary propulsion. This paper takes the KVLCC2 ship as the research object and establishes a three-degree-of-freedom mathematical model for ship motion. The thrust and moment generated by a specific type of sail on the hull in a wind field are introduced as additional terms into the model, enabling the simulation of the sail-assisted ship's motion under wind conditions. Simulation studies on the turning and zigzag motions of the sail-assisted ship reveal that the sail has a significant impact on the ship's maneuverability. Under a wind speed of 8 m/s, the sail increases the ship's turning drift distance by 38.4 m (accounting for 12% of the ship's length) while also increasing the ship's speed during the turning process by 28.1%. In zigzag motion, the sail increases the ship's overshoot angle, particularly during upwind turns, where the second overshoot angle increases from 18.4° to 25.7°. Under beam wind conditions (±90°), the sail induces an asymmetric effect on the ship's steering. The auxiliary effect of the sail is more pronounced during downwind steering, whereas upwind steering requires an increase in the rudder angle for compensation.

Key words: wing sail, model simulation, ship motion mathematical model, ship maneuvering

摘要： 随着全球对环境保护和可持续发展的日益重视,航运业面临着严峻的节能减排压力。风能作为一种清洁、可再生的能源,在船舶助航领域具有重要应用潜力。该文以KVLCC2型船舶为研究对象,建立了三自由度船舶运动数学模型,并将某型风帆在风场环境中对船体产生的推力与力矩作为附加项引入,实现风帆船舶在风场下的运动仿真。通过回转运动和Z形运动仿真研究表明,该风帆对船舶操纵性有显著影响：在8 m/s风速条件下,风帆使船舶回转漂移量增加38.4 m（占船长12%）,同时也使船舶回转过程中的航速提升28.1%; 在Z形运动中,风帆导致船舶转向超越角增大,尤其在逆风转向时,第二超越角从18.4°增至25.7°。在舷侧风（±90°）条件下,风帆对船舶转向产生非对称效应;在顺风转向时风帆的辅助效果更明显,而在逆风转向时则需增大舵角进行补偿。

关键词: 翼型风帆, 模型仿真, 船舶运动数学模型, 船舶操纵性