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首先建立了进行过失速机动时飞机的动力学数学模型 ,并在分析了模糊数学和模糊逻辑控制特点的基础上 ,设计了模糊逻辑控制器 ( FLC)应用于 2种典型的过失速机动 ( 70°迎角定常飞行和眼镜蛇机动 )的数字仿真。结果表明 ,采用模糊逻辑控制器 ,调整模糊控制器中有关参数或采用带修正因子的模糊控制器 ,能够使得飞机在更短的时间内完成过失速机动 ,同时改善了飞机的动态品质。
First of all, the mathematical model of the aircraft during stalled maneuver is established. Based on the analysis of the characteristics of fuzzy mathematics and fuzzy logic control, a fuzzy logic controller (FLC) is designed for two kinds of typical stray maneuvers ° angle of attack on the constant flight and Cobra maneuver) digital simulation. The results show that the fuzzy logic controller can adjust the parameters of the fuzzy controller or adopt the fuzzy controller with the correction factor to make the aircraft finish the stalling maneuver in a shorter time and improve the dynamic quality of the aircraft.