Simulation and Adaptive Control of a High Agility Model Airplane in the Presence of Severe Structural Damage and Failures

Baur, Stephan; Gibson, Travis E.; Annaswamy, Anuradha M.; Höcht, Leonhard; Holzapfel, Florian

doi:10.2514/6.2011-6412

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…Respective analyses have been Fig. 12 Commands for 50% of L/H wing lost and 10% elevator effectivity without sensor noise conducted for the FSD ExtremeStar based on Model Reference Adaptive Control in the course of [24] while [26] dealt in detail with an L 1 Adaptive Control augmented dynamic inversion controller with piecewise-constant adaptation law. In both cases, it was possible to improve the performance in comparison with the non-adaptive controller significantly.…”

Section: Resultsmentioning

confidence: 99%

“…6. Due to space restrictions, the derivation of this layout shall be omitted here, but it can be looked up in [23,24].…”

Section: Dynamic Inversion (Di)mentioning

confidence: 99%

“…All these damages are applicable for both sides of the UAV independently. Furthermore it is possible to combine the damages [24].…”

Section: Simulation Of Severe Structural Damage and Failuresmentioning

confidence: 99%

“…Example damage cases are partial loss of wing surface, loss of control effectiveness, engine failures, etc. This affects the dynamic model on three aspects [23,24]:…”

Section: Simulation Of Severe Structural Damage and Failuresmentioning

confidence: 99%

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Simulation of a high-agility model airplane in the presence of severe structural damage and failures, and design of a dynamic inversion controller

et al. 2011

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The simulation of the aircraft dynamics and behavior of the open loop as well as the closed loop system is a central part in the development of controllers for real flight tests. This paper presents an approach for the systematic development of a nonlinear simulation model in MATLAB/ Simulink for a high-agility model airplane, with a total of 16 different control inputs, together with the design of an appropriate rate command attitude hold (RCAH) controller. The simulation model is capable to represent the behavior of the aircraft, including the dynamics of the motors, the actuators and the sensors, for the nominal case as well as in the case of severe structural damage and failures. The highly sophisticated model of the aircraft is used subsequently for the design of a controller. Dynamic inversion (DI) uses the knowledge of the nonlinear plant dynamics to transform the nonlinear dynamics into a chain of integrators, and after this transformation, a controller can be designed using methods from classical or robust control. A relative degree 1 (RD 1) rate command attitude hold controller, based on dynamic inversion, will be presented together with a semi-analytical approach to select and adjust the appropriate controller gains. The paper is completed by some simulation results encountering severe structural damage and failures. The derived controller can either serve as a stand-alone controller or as a baseline controller for more sophisticated control approaches.

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Section: Resultsmentioning

confidence: 99%

“…6. Due to space restrictions, the derivation of this layout shall be omitted here, but it can be looked up in [23,24].…”

Section: Dynamic Inversion (Di)mentioning

confidence: 99%

“…All these damages are applicable for both sides of the UAV independently. Furthermore it is possible to combine the damages [24].…”

Section: Simulation Of Severe Structural Damage and Failuresmentioning

confidence: 99%

“…Example damage cases are partial loss of wing surface, loss of control effectiveness, engine failures, etc. This affects the dynamic model on three aspects [23,24]:…”

Section: Simulation Of Severe Structural Damage and Failuresmentioning

confidence: 99%

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Simulation of a high-agility model airplane in the presence of severe structural damage and failures, and design of a dynamic inversion controller

et al. 2011

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“…An effective fault-tolerant feedback controller is required to compensate the damage, and to guarantee the safety of aircraft. References [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] investigated adaptive control schemes to compensate the structural uncertainties due to aircraft failures or damage. References 3,13 examined FTC algorithm for an aircraft that suffers from vertical tail loss.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear robust adaptive control of an airplane with structural damage

Asadi

Ahmadi

2020

Proceedings of the Institution of Mechanical Engineers, Part G:

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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.

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Adaptive Control of a High Agility Model Airplane in the Presence of Severe Structural Damage and Failures

Baur

Gibson

Annaswamy

et al. 2011

Advances in Aerospace Guidance, Navigation and Control

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Simulation and Adaptive Control of a High Agility Model Airplane in the Presence of Severe Structural Damage and Failures

Cited by 7 publications

References 5 publications

Simulation of a high-agility model airplane in the presence of severe structural damage and failures, and design of a dynamic inversion controller

Simulation of a high-agility model airplane in the presence of severe structural damage and failures, and design of a dynamic inversion controller

Nonlinear robust adaptive control of an airplane with structural damage

Adaptive Control of a High Agility Model Airplane in the Presence of Severe Structural Damage and Failures

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