大型飞机推力调节应急飞行控制研究

推力调节(Propulsion Controlled Aircraft,以下简称PCA)应急飞行控制作为一种替代的控制策略,能够通过仅调节发动机推力,对常规操纵舵面失效的飞机提供一定的控制能力。首先从动力学角度对推力调节的可行性进行了分析,并在此基础上建立了PCA 总体方案,然后采用内环增稳、外环设计PID 控制器的方法,完成了PCA 纵向航迹倾斜角控制器、横航向滚转角控制器的设计,仿真结果表明利用推力调节实现航迹控制是可行的。最后将所设计的控制器应用于自动着陆系统,飞机能够准确跟踪航迹,满足性能要求。

The Study of Emergency Flight Control System on Propulsion Controlled Aircraft

As an emergency control strategy, PCA (Propulsion Controlled Aircraft) provides certain control ability using throttle modulation, while the conventional flight control system fails. This thesis makes a feasibility analysis of PCA from the view of dynamics and establishes the overall architecture of PCA. Based on PID , the design of longitudinal and lateral controller of PCA is completed. The results show it is feasible to realize the control of landing trajectory. The designed controller is also used in automatic landing system and meets the performance requirements while the aircraft can accurately track the landing trajectory.