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DOI:
飞控与探测:2018,(2):28-33
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基于描述函数法的滚动通道自持振荡研究
廖幻年,金一欢,彭继平,刘露,田野
((上海航天控制技术研究所·上海·200233))
Analysis of Self-oscillation in Roll Channel Using Describing Function Method
LIAO Huannian, JIN Yihuan, PENG Jiping, LIU Lu, TIAN Ye
((Shanghai Aerospace Control Technology Institute, Shanghai 200233))
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投稿时间:2018-08-04    修订日期:2018-09-04
中文摘要: 针对舵系统间隙非线性带来的自持振荡影响飞控系统控制品质的问题,从飞行控制系统层面出发,建立了基于描述函数法的滚动通道数学模型,分别从飞行控制系统的快速性、阻尼特性、飞行器固有阻尼3个方面进行了对比分析。结果表明,增大飞行器固有阻尼能够有效降低,甚至可以消除舵系统间隙非线性带来的自持振荡现象。
中文关键词: 间隙非线性;自持振荡;描述函数法;飞行器固有阻尼
Abstract:The quality of flight control system was affected by the self-oscillation of the backlash nonlinearity of rudder system. The problem was analyzed from the aspect of flight control system. A mathematical model of rolling channel based on description function method was established, which was contrasted and analyzed from three aspects of rapidity, damping characteristic and inherent damping of the vehicle. The results showed that the increa-sing of inherent damping can effectively reduce or even eliminate the phenomenon of self-oscillation caused by the backlash nonlinearity of the rudder system.
keywords: backlash nonlinearity; self-oscillation; description function method; inherent damping of vehicle
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作者单位E-mail
廖幻年 上海航天控制技术研究所·上海·200233 862870811@qq.com 
金一欢 上海航天控制技术研究所·上海·200233  
彭继平 上海航天控制技术研究所·上海·200233  
刘露 上海航天控制技术研究所·上海·200233  
田野 上海航天控制技术研究所·上海·200233  
Author NameAffiliationE-mail
LIAO Huannian Shanghai Aerospace Control Technology Institute, Shanghai 200233 862870811@qq.com 
JIN Yihuan Shanghai Aerospace Control Technology Institute, Shanghai 200233  
PENG Jiping Shanghai Aerospace Control Technology Institute, Shanghai 200233  
LIU Lu Shanghai Aerospace Control Technology Institute, Shanghai 200233  
TIAN Ye Shanghai Aerospace Control Technology Institute, Shanghai 200233  
引用文本:
廖幻年,金一欢,彭继平,刘露,田野.基于描述函数法的滚动通道自持振荡研究[J].飞控与探测,2018,(2):28-33.

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