Fig. 10 | Scientific Reports

Fig. 10

From: Bifurcation and synchronization analysis in a stall-flutter aeroelastic system under varying preset angles and frequency ratios

Fig. 10

Bifurcation plots for different preset angle. (a) \(\alpha _{pre}(^\circ )\) = \(0^\circ\) , (b) \(\alpha _{pre}(^\circ )\) = \(5^\circ\), (c) \(\alpha _{pre}(^\circ )\) = \(10^\circ\), (d) \(\alpha _{pre}(^\circ )\) = \(15^\circ\), (e) \(\alpha _{pre}(^\circ )\) = \(20^\circ\), and \(\overline{\omega }\) = 0.56, \(f_{y}\) = 2.25 Hz, \(f_{\alpha }\)= 3.95 Hz, Regime (i) stable fixed point (FP) attractor, Regime (ii) coexisting stable FP and stable LCO attractors, and Regime (iii) stable LCO attractor, showing the subcritical Hopf bifurcation.

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