基于鲁棒伺服LQR的结冰飞机纵向控制律重构方法

doi:10.7527/S1000-6893.2016.0087

Abstract

Abstract:

Anti-icing and de-icing system could not ensure flight safety under icing condition all the time due to the unreliability of it, research focus on reconfigurable flight control for ice tolerance is significant. The icing effect model and longitudinal dynamic model are established. Based on robust servo linear quadratic regulator (LQR), the longitudinal flight control law is designed for icing aircraft, and then employed to study the dynamic response characteristics to different icing severity with pitch attitude hold, which validates the performance of the designed control law. Moreover, compared to the PID control, the result shows that the designed control law can improve the icing aircraft's flight performance and qualities, and track the pitch instructions excellently. In addition, the anti-jamming capability, dynamic performance and robustness are better than PID control. The proposed methodology can give a theoretical support for reconfigurable control and automatic flight control design under icing conditions.

Key words: aircraft icing, robust servo LQR, longitudinal motion, reconfigurable control, simulation validation

CLC Number:

V212

CHEN Wei, XU Haojun, WANG Xiaolong, PEI Binbin, LI Zhe. Reconfigurable control methods of icing aircraft longitudinal motion based on robust servo LQR[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(1): 120129-120129.

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Reconfigurable control methods of icing aircraft longitudinal motion based on robust servo LQR

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