Conic gain-scheduled control of an aeroelastic airfoil

Jacob Joseph Brown, Ryan James Caverly

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a robust conic gain-scheduled is proposed to suppress oscillations of a twodimensional elastic airfoil. A simplified dynamic model of an elastic airfoil is considered, that includes a flap and a control torque applied directly to the airfoil, resulting in linear parameter-varying dynamics. The control objective is to actively suppress oscillations in the elastic twist of the airfoil, while ensuring robustness to variations in free-stream velocity and parametric model uncertainty. Closed-loop performance is achieved by synthesizing H2-optimal conic controllers at strategically-chosen free-stream velocities. Robust closedloop input-output stability is ensured by the Conic Sector Theorem and the specific form of the scheduling signals used for gain scheduling. Numerical simulations demonstrate the performance and robustness of the proposed synthesis method over a range of free-stream velocities and in the presence of parametric uncertainty.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-14
Number of pages14
ISBN (Print)9781624106095
DOIs
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: Jan 11 2021Jan 15 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period1/11/211/15/21

Bibliographical note

Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

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