大型飞机在风切变环境中的轨迹控制研究

基于低空风切变对飞行安全的影响,提出了一种控制低空风切变中轨迹的方法--改变油门加控制俯仰姿态的方法,这种方法从动力控制和飞机运动参数约束两方面提高了风切变中飞机的飞行安全性。动力控制主要是改变飞机的飞行速度,提高飞机飞行时所需的升力,俯仰姿态控制主要是防止飞机阻力过大,从而造成飞机的高度损失,同时也为了保证合适的升阻比。通过仿真分析,说明该方法可以大大提高飞机的低空安全性。

Control of Flight Trajectory in Windshear for Large Aircraft

The Approach of flight trajectory control in low altitude windshear is introduced based on the effect of low altitude windshear in flight safety, which mainly include changing throttle and pitch altitude control. therefore, the flight safety can be improved by power control and constraint of motion parameters. The power control mainly modify flight speed, then, the lift is increased. The pitch altitude control mainly provent bigger drag and height loss, similarly, the lift to drag can be assured. It is demonstrated that the method is useful for improving flight safety in low altitude windshear from simulation and analysis.