期刊
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A
卷 22, 期 3, 页码 235-244出版社
ZHEJIANG UNIV
DOI: 10.1631/jzus.A2000205
关键词
Mechanical oscillators; Impact oscillator; Coupled network; Nonlocal coupling; Chimera state
资金
- Polish National Science Centre, MAESTRO Programme [2013/08/A/ST8/00780]
- Polish National Science Centre, OPUS Programme [2018/29/B/ST8/00457]
This paper investigates the chimera states in a network of impact oscillators with nonlocal coupling, finding that the coupling strength and range affect the emergence of chimera states. The study also shows that coupling can help maintain oscillatory motion with lower amplitude in the case of excitation failure.
Chimera state is a peculiar spatiotemporal pattern, wherein the coherence and incoherence coexist in the network of coupled identical oscillators. In this paper, we study the chimera states in a network of impact oscillators with nonlocal coupling. We investigate the effects of the coupling strength and the coupling range on the network behavior. The results reveal the emergence of the chimera state for significantly small values of coupling strength, and higher coupling strength values lead to unbounded motions in the oscillators. We also study the network in the case of excitation failure. We observe that the coupling helps in the maintenance of an oscillatory motion with a lower amplitude in the failed oscillator.
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