Transonic flutter suppression with tuned mass damper by model-based stability analysis method

Flutter as a self-excited oscillation can cause catastrophic damage to the aircraft structure. Tuned mass damper (TMD) is one of the vibration suppression methods widely used in engineering. However, traditional linear aerodynamic methods are not accurate in transonic flow. In this study, we first e...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part G, Journal of aerospace engineering Journal of aerospace engineering, 2023-01, Vol.237 (1), p.17-28
Main Authors: Fuqing, Luo, Chuanqiang, Gao, Zhen, Lyu, Weiwei, Zhang, Qiannan, Xu
Format: Article
Language:English
Subjects:
Aeroelastic stability
Aircraft structures
Coupling
Design optimization
Flutter analysis
Identification methods
Reduced order models
Stability analysis
System identification
Transonic flow
Transonic flutter
Unsteady aerodynamics
Vibration control
Vibration isolators
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Summary:Flutter as a self-excited oscillation can cause catastrophic damage to the aircraft structure. Tuned mass damper (TMD) is one of the vibration suppression methods widely used in engineering. However, traditional linear aerodynamic methods are not accurate in transonic flow. In this study, we first establish an unsteady aerodynamic model of the NACA0012 airfoil using the system identification method based on the Auto-Regressive with eXogenous input (ARX) model. Then, a flutter suppression model is constructed by coupling the TMD with the aeroelastic system. The parameters of the TMD are investigated using the model-based aeroelastic stability analysis. It is found that the flutter instability mode of the original system has changed due to the participation of the TMD in the system modal coupling. The proposed reduced-order model (ROM) provides a fast stability analysis method for flutter suppression with TMD as well as significant guidance for TMD design and optimization.
ISSN:0954-4100
2041-3025
DOI:10.1177/09544100221089704