Modeling and switching adaptive control for nonlinear morphing aircraft considering actuator dynamics

Journal article (2022)

Authors

Wenfeng Xu Air Force Engineering University China
Yinghui Li Air Force Engineering University China
Maolong Lv Air Force Engineering University China, Team Bart De Schutter - Mechanical, Maritime and Materials Engineering
Binbin Pei Air Force Engineering University China
Research Group
Team Bart De Schutter (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2022 Wenfeng Xu, Yinghui Li, Maolong Lv, Binbin Pei
DOI
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https://doi.org/10.1016/j.ast.2022.107349
Actuator dynamics Morphing aircraft Nonlinear aerodynamic modeling Switching control
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Published Date

2022

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Delft Center for Systems and Control

Research Group

Team Bart De Schutter

Abstract

This paper investigates the problems of modeling and control of the morphing aircraft. Henceforth, a nonlinear dynamic model of a wing-sweep morphing aircraft is first established in this work. This model is suitable for larger envelopes by elaborating the variation of aerodynamic coefficients, air density, mass distribution at different altitudes, Mach numbers, and sweep angles. Considering the alterations in the dynamic characteristics of the morphing aircraft owing to the various flight conditions, we design the switching adaptive backstepping controllers for the altitude subsystem and velocity subsystem. The actuator dynamics have been explicitly included in the process of the controller design to alleviate the chattering problem caused by the switching. Furthermore, the closed-loop stability is rigorously proved via the Lyapunov stability theory and the technique of compact set. Comparative results from the simulations finally validate the effectiveness of the proposed scheme.