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Bifurcation analysis for T system with delayed feedback and its application to control of chaos

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Abstract

In this paper, a three-dimensional autonomous nonlinear system called the T system which has potential application in secure communications is considered. Regarding the delay as parameter, we investigate the effect of delay on the dynamics of T system with delayed feedback. Firstly, by employing the polynomial theorem to analyze the distribution of the roots to the associated characteristic equation, the conditions of ensuring the existence of Hopf bifurcation are given. Secondly, by using the normal form theory and center manifold argument, we derive the explicit formulas determining the stability, direction and other properties of bifurcating periodic solutions. Finally, we give several numerical simulations, which indicate that when the delay passes through certain critical values, chaotic oscillation is converted into a stable steady state or a periodic orbit.

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Acknowledgements

This research is supported by the Foundation of Zhengzhou Science and Technology Bureau under Grant No. 20120412.

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  1. Huanghe Science and Technology College, Zhengzhou, 450063, P.R. China

    Rongyan Zhang

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  1. Rongyan Zhang
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Correspondence to Rongyan Zhang.

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Zhang, R. Bifurcation analysis for T system with delayed feedback and its application to control of chaos. Nonlinear Dyn 72, 629–641 (2013). https://doi.org/10.1007/s11071-012-0741-3

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  • DOI: https://doi.org/10.1007/s11071-012-0741-3

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