飞行轨迹稳定性应用的分析

Analysis on the Application of Flight Path Stability

首先根据飞行轨迹稳定性的数学模型，得出了飞机在闭环条件下扰动过程速度的变化规律及飞行轨迹稳定性的应用条件，并且结合不同类型的飞机进行了对比分析。然后以推力曲线为基础分析了不同类型飞机的临界速度范围，并根据飞机极曲线对飞行轨迹稳定性临界状态与有利速度的关系进行了分析。最后结合飞行实际着重对飞行轨迹稳定性的应用进行了探讨，所得结论可为分析有关飞行问题提供参考。

In this article, firstly the speed variation law during disturbance process under the circumstances of closed loop and the application conditions for flight path stability are obtained according to the mathematical model of flight path stability,the contrast analysis is carried out combined with various aircraft types. And then the critical speed range for different aircraft types is analysed based on the push curve,and this article makes a further analysis to the relationship between the critical state of flight path stability and the optimum speed on the basis of the aircraft polar curve.Finally,the application of flight path stability in flight practise is discussed emphatically,the conclusion above may provide reference to the analysis to the problems in flight practise.