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Transonic buffeting control via a nonlinear aeroservoelastic model of reduced-order

Published online by Cambridge University Press:  16 April 2026

Zhijun Yang Open the ORCID record for Zhijun Yang [Opens in a new window] ,
Zhong Zhang ,
Mingming Zhang  and
Shun He
Zhijun Yang*
Affiliation:
Beijing Institute of Structure and Environment Engineering, Beijing, China
Zhong Zhang
Affiliation:
Beijing Institute of Structure and Environment Engineering, Beijing, China
Mingming Zhang
Affiliation:
Northwestern Polytechnical University, Xian, China
Shun He
Affiliation:
Northwestern Polytechnical University, Xian, China
*
Corresponding author: Zhijun Yang; Email: yangzhijun@nuaa.edu.cn
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Abstract

The paper presents a detailed study on the transonic buffeting phenomenon and related active control problems via a novel nonlinear aeroservoelastic model of reduced-order. An important feature of the study is the reconstruction of the unsteady aerodynamics in transonic buffeting flows via a modified nonlinear state-space identification scheme. Based on the aerodynamic model reduction, the paper gives a nonlinear aeroservoelastic model of reduced-order by coupling the structural dynamics of a wing section with a control surface. To demonstrate the accuracy and efficiency of the above model and the control design for transonic buffeting, the study deals with detailed numerical simulations of a wing section of an NACA0012 aerofoil system with a control surface. The case studies cover the dynamic behaviours of such an aerofoil system, including flutter, limit-cycle oscillations, nodal-shaped oscillations and open/closed-loop aeroservoelastic buffeting oscillations. The numerical results demonstrate that the novel nonlinear reduced-order modeling approach provides an efficient way to synthesise the active buffeting control system. Based on the nonlinear aeroservoelastic model of reduced-order, the control gains of the buffeting controller can be efficiently determined and the unstable buffeting behaviours can also be controlled effectively.

Keywords

aeroservoelastic buffetingbuffeting controlnonlinear reduced-order modelnonlinear system identification

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Type
Research Article
Information
The Aeronautical Journal , First View , pp. 1 - 24
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Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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