One-to-three resonant Hopf bifurcations of a maglev system
- Publication Type:
- Journal Article
- Nonlinear Dynamics, 2018, 93 (3), pp. 1277 - 1286
- Issue Date:
|Zhang-Ji2018_Article_One-to-threeResonantHopfBifurc.pdf||Published Version||1.22 MB|
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© 2018, Springer Science+Business Media B.V., part of Springer Nature. This paper studies the dynamics of a maglev system around 1:3 resonant Hopf–Hopf bifurcations. When two pairs of purely imaginary roots exist for the corresponding characteristic equation, the maglev system has an interaction of Hopf–Hopf bifurcations at the intersection of two bifurcation curves in the feedback control parameter and time delay space. The method of multiple time scales is employed to drive the bifurcation equations for the maglev system by expressing complex amplitudes in a combined polar-Cartesian representation. The dynamics behavior in the vicinity of 1:3 resonant Hopf–Hopf bifurcations is studied in terms of the controller’s parameters (time delay and two feedback control gains). Finally, numerical simulations are presented to support the analytical results and demonstrate some interesting phenomena for the maglev system.
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