Complicated behaviors and bifurcation mechanism of the periodic parameter-switching Chen system

Complicated behaviors and bifurcation mechanism of the periodic parameter-switching Chen system
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周期性参数切换Chen系统的复杂行为和分岔机制

DOI:
10.1016/j.ijleo.2016.10.089
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发表时间:
2017-02
期刊:
影响因子:
3.1
通讯作者:
Bi Qinsheng
Bi Qinsheng
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Zhang Chun;Han Xiu jing;Bi Qinsheng

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本文建立了一种基于参数周期性变化在两个陈氏系统之间切换的切换系统。为了研究整个系统切换振荡的机理,用切换方案和子系统的解定义了整个系统的poincar<s:1>映射。可以观察到围绕不稳定平衡点的不同类型的周期开关振荡及其向混沌振荡的转变。结果表明,双周期分岔、干草叉分岔和鞍音分岔等分岔场景在开关系统中产生各种(对称或非对称)周期振荡和混沌中起着重要作用。
In this paper, a switched system that switches between two Chen systems based on the parameters altered periodically is established. To investigate the mechanism of switching oscillation of the whole system, Poincaré map of the whole system is defined by the switching scheme and the solutions of the subsystems. Different types of periodic switching oscillations revolved around the unstable equilibrium points and their transitions to chaotic oscillations can be observed. We conclude that bifurcation scenarios, such as period-doubling bifurcation, pitchfork bifurcation and saddle-note bifurcation, play an important role in the generation of various (symmetric or asymmetric) periodic oscillations and chaos in the switched system.
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