Modeling and Model Reference Adaptive Control of Aircraft with Asymmetric Damage

摘要

This paper addresses some fundamental issues in adaptive control of aircraft with structural damage. It presents a thorough study of linearized aircraft models with damage to obtain new details of system descriptions, such as coupling and partial derivatives of lateral and longitudinal dynamics. A detailed study of system invariance under damage conditions is performed for generic aircraft models to obtain key system characterizations for model reference adaptive control, such as infinite zero structure and signs of high-frequency gain matrices. A comprehensive study of multivariable model reference adaptive control systems in the presence of damage is performed to obtain critical design specifications for adaptive flight control, such as system and controller parameterizations and adaptive parameter update laws. Both analytical and simulation results are given to illustrate the design and performance of adaptive control systems for aircraft flight control.