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本文以 MИГ-21机为例,系统地计算和绘制了在 H=18000米、M=2.0飞行状态下,引入各种返馈信号后的飞机特征根值随返馈信号大小的变化规律,即系统的闭环根轨迹。并从飞行力学观点初步讨论了根轨迹变化的原因。全文分纵向和横侧向两大部分。计算分析所用系统仍为线性的,自动器为理想的。
In this paper, taking the MISSГ-21 as an example, the variation of the eigenvalue of the airplane eigenvalue with the feedback signal after the introduction of various feedback signals under the condition of H = 18000m and M = 2.0 is systematically calculated and plotted, that is The closed-loop root locus of the system. From the viewpoint of flight mechanics, the reasons for the change of root locus are discussed. The full text is divided into vertical and horizontal two parts. The system used for calculation and analysis is still linear, and the automaton is ideal.