| 操纵面故障对飞行包线的影响研究 |
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| 引用本文： | 刘小雄,邱岳恒,刘世民,章卫国.操纵面故障对飞行包线的影响研究[J].飞行力学,2012,30(2):128-131. |
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| 作者姓名： | 刘小雄 邱岳恒 刘世民 章卫国 |
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| 作者单位： | 1. 西北工业大学自动化学院,陕西西安,710072
2. 中航工业第一飞机设计研究院飞行控制与液压所,陕西西安,710089 |
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| 摘 要： | 进行飞机操纵机构故障时飞行包线估计对提高飞行安全具有重要意义。针对飞机操纵面故障特点,提出一种在线飞行包线估计方法。首先根据操纵面对飞行动力学参数的影响建立故障参数模型,然后应用基于遗忘因子的最小二乘参数估计方法进行气动参数的在线估计,最后基于参数估计结果进行包线的精确估算和分析,计算结果可为驾驶员和包线保护控制提供参考。仿真分析表明,该方法能精确估计飞行包线范围。
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| 关 键 词： | 操纵面故障 飞行包线 最小二乘方法 |
Research for flight envelope effect of the control surface fault |
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| LIU Xiao-xiong
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QIU Yue-heng
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LIU Shi-min
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ZHANG Wei-guo.Research for flight envelope effect of the control surface fault[J].Flight Dynamics,2012,30(2):128-131. |
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| Authors: | LIU Xiao-xiong QIU Yue-heng LIU Shi-min ZHANG Wei-guo |
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| Institution: | 1 (1.College of Automation,Northwestern Polytechnical University,Xi’an 710072,China; 2.Institute of Flight Control and Hydraulic,The First Aircraft Institute of AVIC,Xi’an 710089,China) |
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| Abstract: | It is important for flight envelope assessment in the presence of control surface fault as it will influence the flight safety of the aircraft.Considered the characteristic of the control surface fault,a dynamic flight envelope assessment method is proposed in this paper.Firstly,according to control surface fault could cause the aerodynamic parameter change,the fault modeling is built.Then,based on the recursive least square method,the aerodynamic parameters are identified in online.Finally,the flight envelope is assessed accurately.The assessment result will provide the information for a pilot and the envelope protection systems. |
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| Keywords: | control surface fault flight envelope the least square method |
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