| 非线性解耦控制理论在飞控系统设计中的应用研究 |
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| 引用本文： | 李季陆,方振平.非线性解耦控制理论在飞控系统设计中的应用研究[J].飞行力学,1994,12(1):42-49. |
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| 作者姓名： | 李季陆 方振平 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 根据非线性解耦控制理论设计了用升降舵、副翼和方向舵控制飞机迎角、侧滑角和滚转角速度的解耦控制律，并进行了闭环系统数字仿真研究。飞机动力学的数学模型计及了非线性气动力、运动和惯性耦合因素；操纵系统动力学模型中考虑了舵面的惯性，位置和偏转速率限幅，仿真结果表明，所设计的控制律可有效地指令飞机进行大幅值的单自由度或多自由度机动飞行，控制律中的参数变化对闭环系统动态响应影响较显著，容易导致Ｈｏｐｆ分支现象
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| 关 键 词： | 非线性 解耦控制理论 飞行控制 |
APPLICATION OF NONLINEAR DECOUPLINGCONTROL THEORY FOR FLIGHT CONTROL SYSTEM |
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| Li Jilu,Fang Zhenping.APPLICATION OF NONLINEAR DECOUPLINGCONTROL THEORY FOR FLIGHT CONTROL SYSTEM[J].Flight Dynamics,1994,12(1):42-49. |
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| Authors: | Li Jilu Fang Zhenping |
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| Institution: | Beijing University of Aeronautics and Astronautics |
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| Abstract: | in this paper, according to nonlinear decoupling control theory a controllaw is synthesized to control angle of attack.angle of sideslip and roll rate using its ele-vator, aileron and rudder, and the responses of closed-loop system are calculated. Themathematical model describing alrcraft dynamics includes nonlinear aerodynamics, kine-matics and inertial couplings.and the flight control system rriodel includes the inertlalsand limiter of servo actuators. The digital simulation results show the effectiveness ofthe control law which aircraft is commanded to maneuver writh large amplitude in singledegree or in more. The parameter variation of the control law brings strong influence onthe responses of closed-loop system and usually lead to hopf bifurcation. |
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| Keywords: | Nonlinear decoupling control theory Flight control Large am-plitud e maneuver |
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