| 分叉分析方法在大迎角控制律设计中的应用 |
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| 引用本文： | 黎康,方振平. 分叉分析方法在大迎角控制律设计中的应用[J]. 航空学报, 2003, 24(4): 289-292 |
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| 作者姓名： | 黎康 方振平 |
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| 作者单位： | 北京航空航天大学,飞行器设计与应用力学系,北京,100083 |
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| 摘 要： | 在充分了解本体静不稳定飞机大迎角非线性数学模型的分叉特性的基础上, 以分叉分析方法作为指导, 采用特征结构配置方法设计纵向控制律和调参的横航向控制律。结果显示, 不期望的分叉行为得到抑制,飞机稳定和解耦的飞行范围得以延伸。
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| 关 键 词： | 分叉 特征结构配置 大迎角 Hopf分叉 静不稳定 |
| 文章编号： | 1000-6893(2003)04-0289-04 |
| 修稿时间： | 2002-04-30 |
Application of Bifurcation Analysis to Control Law Design at High Angles of Attack |
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| LI Kang,FANG Zhen ping. Application of Bifurcation Analysis to Control Law Design at High Angles of Attack[J]. Acta Aeronautica et Astronautica Sinica, 2003, 24(4): 289-292 |
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| Authors: | LI Kang FANG Zhen ping |
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| Affiliation: | Department of Flight Vehicle Design and Applied Mechanics; Beijing University of Aeronautics and Astronautics; Beijing 100083; China |
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| Abstract: | After a thorough investigation of the bifurcation behaviors of the nonlinear model of an inherently static unsteady aircraft at high angles of attack,eigenstructure assignment was applied to design the longitudinal control law and gain scheduled lateral control law.Results show that the unexpected bifurcation behaviors are restrained and the stable and decoupled flight envelope is extended. |
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| Keywords: | bifurcation eigenstructure assignment high angle of attack Hopf bifurcation static unsteady |
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