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大气紊流和风切变对飞行活动影响较大,尤以低空风切变危害最大,严重威胁着民航飞行的安全。鉴于飞行器对抗大气扰动的实际能力有限,正确的飞行对策是回避或改出危险的大气扰动区。本文对某训练飞机着陆进近遭遇风切变时飞机轨迹的变化进行了模拟仿真计算。结果表明,采用恒定迎角策略,即采用最大允许迎角(抖动迎角)和最大油门时,改出效果最佳。同时计算出了某训练飞机在水平风为0时,所能抵抗的最大垂直阵风强度;以及在垂直阵风为0时,所能抵抗的最大水平风强度。
Atmospheric turbulence and wind shear have a greater impact on the flight activities, especially the low-altitude wind shear is the most harmful, which seriously threatens the safety of civil aviation flight. In view of the limited practical capabilities of aircraft to combat atmospheric disturbances, the correct flight countermeasure is to avoid or divert dangerous atmospheric disturbance zones. This paper simulates the change of aircraft trajectory when a training aircraft encounters wind shear in approach approach. The results show that, using a constant angle of attack strategy, which uses the maximum allowable angle of attack (jitter angle of attack) and the maximum throttle, the best correction. At the same time, the maximum vertical gust intensity that a training aircraft can resist when the horizontal wind is zero is calculated, and the maximum horizontal wind strength that can be resisted when the vertical gust is zero.