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Nonlinear robust adaptive control of an airplane with structural damage
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering ( IF 1.1 ) Pub Date : 2020-05-20 , DOI: 10.1177/0954410020926618
Davood Asadi 1 , Karim Ahmadi 2
Affiliation  

This article investigates the design of a novel nonlinear robust adaptive control architecture to stabilize and control an airplane in the presence of left-wing damage. Damage effect is modeled by considering the sudden mass and inertia changes, center of gravity, and aerodynamic variations. The novel nonlinear control algorithm applies a state predictor as well as the error between the real damaged dynamics and a virtual model based on the nominal aircraft dynamics in the control loop of the adaptive strategy. The projection operator is used for the purpose of robustness of the adaptive control algorithm. The stability of the proposed nonlinear robust adaptive controller is demonstrated applying the Lyapunov stability theory. The performance of the proposed controller is compared with two previous successful algorithms, which are implemented on the Generic Transport Model airplane to accommodate wing damage. Numerical simulations demonstrate the effectiveness and advantages of the proposed robust adaptive algorithm regarding two other algorithms of adaptive sliding mode and L 1 adaptive control.

中文翻译:

飞机结构损伤的非线性鲁棒自适应控制

本文研究了一种新型非线性鲁棒自适应控制架构的设计,以在出现左翼损坏的情况下稳定和控制飞机。损伤效应是通过考虑突然的质量和惯性变化、重心和空气动力学变化来建模的。新的非线性控制算法在自适应策略的控制回路中应用状态预测器以及基于标称飞机动力学的真实损坏动力学与虚拟模型之间的误差。投影算子用于自适应控制算法的鲁棒性。应用李雅普诺夫稳定性理论证明了所提出的非线性鲁棒自适应控制器的稳定性。所提出的控制器的性能与之前两个成功的算法进行了比较,在通用运输模型飞机上实施以适应机翼损坏。数值模拟证明了所提出的鲁棒自适应算法相对于其他两种自适应滑模和L 1 自适应控制算法的有效性和优势。
更新日期:2020-05-20
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