Active flutter suppression control law design method based on balanced proper orthogonal decomposition reduced order model |
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Authors: | Chen Gang Sun Jian Li Yueming |
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Institution: | 1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi??an Jiaotong University, Xi??an, 710049, China
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Abstract: | Active control for nonlinear aeroelastic structures is an attractive innovative technology. The design of classic active flutter controllers has often been based on low-fidelity and low-accuracy linear aerodynamic models. Multi-physics high-fidelity reduced order model (ROM) was used to design active control laws. In order to provide a lower-order model for controllers design, a balanced proper orthogonal decomposition ROM (POD-BT/ROM) was investigated. A state-space aeroservoelastic model and the active flutter suppression control law design method based on POD-BT/ROM were proposed. The effectiveness of the proposed method was then demonstrated by NACA 0012 airfoil, AGARD 445.6 wing and the Goland wing+ aeroelastic model. |
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