舰尾流影响下的舰载机着舰控制与仿真研究

Control and Simulation Study for Carrier-based Aircraft Landing Approaches Considering Aft-flow Disturbance

舰载机着舰时处于"低速大迎角下滑"的飞行状态,飞机的操纵性下降,加上舰尾雄鸡尾流的干扰,如果不能很好地控制很可能造成着舰失败。搭建考虑高度影响的舰载机着舰动力学模型,从"力与运动的动态关系"和"能量转换"两个角度进行舰载机着舰过程物理机理的研究,并利用模糊PID控制器的快速收敛能力对比分析迎角、速度和高度三个反馈量,升降舵和油门杆两个控制量,共六个控制通道的控制机理和内在关系,得出它们的优劣势和适用情况。进行有风扰动下的控制仿真及分析,筛选出油门杆高度反馈PID控制器作为舰尾流扰动下的控制系统,仿真结果验证了该控制器的有效性。

The control performance degradation of carrier-based aircraft in the low-speed high angle of attack sit- uation and the interference of the airflow disturbance can cause the carrier-based aircraft carrier landing failure if the carrier-based aircraft cannot be controlled well. This article focuses on building a carrier-based aircraft land- ing dynamics model considering height effect, and studying of the physical mechanism of carrier-based aircraft landing process. The fuzzy PID control system is designed for different control channels. Through comparative analysis, its strengths and weaknesses are realized. The throttle lever height feedback PID controller is filtered out as a control system under the airflow disturbance. Simulation results verify the effectiveness of the controller.