Robust Controller Design and Research on Airplane Anti-Skid System
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摘要: 首先对系统进行了详细的分析,并建立了系统的数学模型,然后针对飞机防滑刹车系统在地面滑跑时存在的各种外干扰问题,提出了一种基于自适应滤波的鲁棒控制方法.通过对系统施加各种外干扰所进行的数字仿真表明,该方法在提高系统的鲁棒性方面是行之有效的.Abstract: Firstly, the system has been analyzed in detail and the mathematical model has been given. The second problem is how to improve the robustness of the system. When the airplane is running on the runway, the tyre/runway characteristic will be disturbed by various time-variant or uncertain factors, such asthe airplane velocity, the various road surface condition of dry, wet or ice, and so on. In addition, when setting up the mathematical model of system, some certain modeling errors may be produced. The control effect will descend obviously when the system is influenced by the disturbances. So, in the view of all the disturbances discussed above, a control method based on robust adaptive filter has been put forward. The simulation has been made by exerting various disturbances to the system. The simulation result has demonstrated that this method is effective in improving the robustness of the system.
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Key words:
- anti-skid /
- adaptive filtering /
- robustness /
- braking system
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[1] 赵海鹰,王占林,裘丽华.飞机防滑控制系统的分布式实时仿真[J].北京航空航天大学学报,2000,26(2):156~159.\= [2]刘志伟.公管子系统仿真与接口研究 .北京:北京航空航天大学自动控制系,1998. [3]Longyear D M,Hirzel E A.Advanced braking controls for business aircraft . SAE 790599,1979. [4]贾沛章,朱征桃.最优估计及其应用[M].北京:科学出版社,1984.
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