考虑转向运动特征的船舶新航向距离计算模型

A new model involving ship turning characteristics for calculating distance to new course

为提升船舶转向时船位预测和精准控制效率,提出一种基于船舶转向运动特征的新航向距离计算模型。分析在船舶转向运动中基于K、T指数的新航向距离的计算方法及其局限性,分析船舶转向运动中船舶运动特征及其相互之间的关系,依据航道转弯半径相关的设计规范,并考虑船舶驾驶位置的影响,建立基于船舶转向运动特征的新航向距离计算模型。实船应用显示:基于船舶转向运动特征的新航向距离与船舶转向运动实际情况相吻合。多船验证表明该模型具有广泛的适用性。该研究结果可为船舶智能驾驶中转向控制提供一种新的参考。

A model involving ship′s turning characteristics is developed to improve the accuracy of distance-to-new-course calculation.The conventional calculation method based on ship maneuverability indices K-T and its limitations are analyzed.The ship′s motion characteristics and the relations among the parameters are studied.The design rules relating to channel bending radius and the impact of bridge position on a ship are introduced into the model for calculating distance-to-new-course.The model has been used for several ships and proved.