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http://dx.doi.org/10.5139/JKSAS.2019.47.2.114

Design and Performance Verification of L1 Adaptive Flight Control Law Considering the Change of Center of Gravity for Unmanned Tailless Aircraft  

Ko, Dong-hyeon (Department of Aerospace Engineering, Inha University)
Kang, Ji-soo (Department of Aerospace Engineering, Inha University)
Choi, Keeyoung (Department of Aerospace Engineering, Inha University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.47, no.2, 2019 , pp. 114-121 More about this Journal
Abstract
Tailless aircraft have advantages of low visibility compared to conventional aircraft, but drawback of poor stability as well which makes designing controller difficult. The controller design is more difficult, especially when the center of gravity moves due to store release or fuel consumption during flight. In this paper, an L1 adaptive controller is proposed as a way to overcome these problems. The reliability and performance of the controllers were verified by non-linear simulations. RPV Flying Quality Design criteria were used for design criteria. Using the simulation, it is shown that the adaptive controller maintains stability of the unmanned aircraft for sudden large change in the inertial properties. It is also shown that the calculation burden can be reduced when it is used with the gain scheduling method.
Keywords
Tailless Aircraft; Center of Gravity; Adaptive control; UAV Performance Analysis Indicators;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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