航空学报 > 1994, Vol. 15 Issue (2): 212-218

飞机机械操纵与舵机操纵耦合干扰研究

王艺兵, 冯亚昌, 王占林   

  1. 北京航空航天大学303教研室,北京,100083
  • 收稿日期:1992-01-03 修回日期:1992-12-25 出版日期:1994-02-25 发布日期:1994-02-25

THE STUDY ON COUPLING DISTURBANCE OF THE FLIGHT MECHANI-CAL CONTROL SYSTEM WITH SERVO-MECHANISM SYSTEM IN AIRCRAFT

Wang Yibing, Feng Yachang, Wang Zhan lin   

  1. Faculty 303 of Beijing University of Aeronautics and Astronautics,Beijing,100083
  • Received:1992-01-03 Revised:1992-12-25 Online:1994-02-25 Published:1994-02-25

摘要: 用线性理论建立了机械操纵与舵机操纵耦合干扰数学模型,证明产生耦合干扰的根源主要由杆系后段质量造成的。提出减小耦合干扰程度的结构滤波器,并对有该滤波器的某飞机系统进行数字仿真。

关键词: 耦合, 气动力振荡, 结构振动

Abstract: A mathematical model of the coupling disturbance for mechanical control system and servo-mechanism is established by the linear theory.This paper concludes that the origin of pro-ducing the coupling disturbance is made by the mass ofrear stick line mostly.Then a structure fil-ter of reducing the coupling disturbance level is proposed,and digital simulation is made for some aircraft system with the filter. The digital results show that it agrees well with the experi-ment and the proposed theory analysis is correct.

Key words: coupling, airfoil oscillations, structural vibration

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