TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
Online ISSN : 2189-4205
Print ISSN : 0549-3811
ISSN-L : 0549-3811
Limit Cycle Oscillation Control for Transonic Aeroelastic Systems Based on Support Vector Machine Reduced Order Model
Gang CHENJian SUNWentao MAOYueming LI
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JOURNALS OPEN ACCESS

2013 Volume 56 Issue 1 Pages 8-14

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Abstract

Due to the difficulty in accurately predicting the limit cycle oscillation (LCO) generated by nonlinear unsteady aerodynamics in the transonic regime, neither the traditional system identification nor eigenmode-based reduced order model (ROM) are suitable for designing active LCO control law. A support vector machine (SVM) based ROM is investigated and an active control law design method based on the new ROM is proposed. A three-degree-of-freedom pitch and plunge aeroelastic systems in transonic flow is successfully demonstrated for the SVM-based ROM. The simulation results indicate that the active LCO control law can be designed and evaluated with good accuracy and efficiency by the SVM itself, without requiring intensive simulations of the CFD/CSD couple solver.

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© 2013 The Japan Society for Aeronautical and Space Sciences
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