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为求解飞机稳态尾旋平衡点,推导了飞机稳态尾旋的动力学方程,并针对该方程给出了三种求解方法:作图法、数值求解法以及在前两种方法的基础上所提出的一种综合求解方法。综合求解方法首先使用作图法得出方程的所有近似解,并用稳态尾旋判据判断解是否为稳定解,然后将稳定近似解作为数值求解法的初值进行精确求解。运用综合求解方法对算例飞机进行了稳态尾旋平衡点的计算,算法收敛迅速,结果精确,表明该方法具有很好的工程应用价值。
In order to solve the balance point of the steady-state tail rotor of the aircraft, the dynamic equations of the steady-state tail rotor of the aircraft are deduced and three solving methods are given according to the equation: plotting method, numerical solution method and the former two methods Proposed a comprehensive solution. The comprehensive solution method first draws all the approximate solutions of the equation by using the method of graphing, and uses the steady-state caudal criterion to determine whether the solution is a stable solution. Then, the stable approximate solution is used as the initial value of the numerical solution method to solve accurately. The comprehensive solution method is used to calculate the steady-state wake balance point of the example aircraft. The algorithm converges rapidly and the result is accurate. It shows that the method has good engineering application value.