加油机尾流场建模及受油机飞行安全性分析

Modeling of Tanker's Wake Field and Flight Safety Analysis of Receiver Aircraft

建立了加油机尾流场的等效扰动模型,分析了受油机在尾流场中的飞行安全性。提出的等效气动效应法采用逐点积分方法和加权平均方法,将尾流的非均匀扰动作用转化为受油机运动方程直接可用的平均风速度和等效角速度。给出了尾流作用于受油机的附加力和附加力矩,采用力和力矩平衡方法确定了不同状态下受油机的安全飞行区域。对受油机附加力和附加力矩的仿真结果表明尾流场等效扰动模型和受油机安全飞行区域较好的符合实际情况。

An equivalent disturbance model of the tanker＇s wake was developed and then the flight safety of the receiver aircraft was analyzed. A computing method with principle of pneumatic effect equated was proposed and in this method, the techniques of point-by-point integration and averaging schemes with weight were employed, and the non-uniform effects of the tanker＇s wake acting on the receiver aircraft were approximated with components of effective wind and equivalent angular velocity which could be directly used in the receiver＇s standard motion equations. Furthermore, the additional forces and moments of the receiver were introduced, and according to the fundamental of forces balance and moments balance, the safe flight area of the receiver was worked out. The simulation of the wake＇s affects on the receiver shows that the equivalent disturbance model and the safe flight area of the receiver accord with the facts well.