高维广义蔡氏电路中的快慢动力学行为及其分岔分析
Bifurcation analysis of slow-fast behavior in modified Chua's circuit
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摘要: 讨论了四阶广义蔡氏电路在两时间尺度下的动力学行为.由数值模拟得到了系统在不同参数条件下的周期簇发解和混沌吸引子.通过引入快慢分析法,从分岔的角度,以周期解为例,对系统动力学行为产生的机理及其演化规律进行了理论分析和解释,其结论与数值计算的结果基本符合.Abstract: The dynamics of four-order modified Chua's circuit with slow-fast effect has been investigated in this letter.Different types of bursting phenomena can be observed in numerical simulations.By introducing slow-fast analysis,the bifurcation mechanism for the periodic bursting solutions,especially for Fold/Fold bursting and Fold/Hopf bursting,is presented,which is different from the usual case.With the variation of the parameter,the periodic bursting can evolve to chaotic bursting.
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