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Generation of hyperchaos from the Chen–Lee system via sinusoidal perturbation |
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| Authors: | Lap Mou Tam Juhn Horng Chen Hsien Keng Chen Wai Meng Si Tou |
| Institution: | aDepartment of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Av. Padre Thomas Pereira S.J., Taipa, Macau bDepartment of Mechanical Engineering, Chung Hua University, Hsinchu, Taiwan cDepartment of Mechanical Engineering, Hsiuping Institute of Technology, Taichung, Taiwan |
| Abstract: | A system with more than one positive Lyapunov exponent can be classified as a hyperchaotic system. In this study, a sinusoidal perturbation was designed for generating hyperchaos from the Chen–Lee chaotic system. The hyperchaos was identified by the existence of two positive Lyapunov exponents and bifurcation diagrams. The system is hyperchaotic in several different regions of the parameters c, ε, and ω. It was found that this method not only can enhance or suppress chaotic behavior, but also induces chaos in non-chaotic parameter ranges. In addition, two interesting dynamical behaviors, Hopf bifurcation and intermittency, were also found in this study. |
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