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Forecasting supercritical and subcritical Hopf bifurcations in aeroelastic systems
Affiliation:1. Department of Mechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;2. School of Mathematics and Physics, Anhui University of Technology, Ma’anshan 243002, PR China
Abstract:A novel method of forecasting bifurcations based on only the observation of the pre-bifurcation regime is proposed. The method is an extension of previous approaches with a focus on oscillatory systems. The method also enables the use of much less measurement data. Numerical results are presented to demonstrate that this new approach predicts the post-bifurcation regime accurately and to explore the robustness of this method to process noise.
Keywords:Forecasting  Bifurcation  Aeroelasticity  Nonlinear systems  Post-bifurcation regime  Transient response
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