Experimental Study of the Irrational Phase Synchronization of Coupled Nonidentical Mechanical Metronomes

Zhiwen Song, Ye Wu, Weiqing Liu and Jinghua Xiao

PLOS ONE, 2015, vol. 10, issue 3, 1-11

Abstract: It has recently been observed in numerical simulations that the phases of two coupled nonlinear oscillators can become locked into an irrational ratio, exhibiting the phenomenon of irrational phase synchronization (IPS) [Phys. Rev. E 69, 056228 (2004)]. Here, using two coupled nonidentical periodic mechanical metronomes, we revisit this interesting phenomenon through experimental studies. It is demonstrated that under suitable couplings, the phases of the metronomes indeed can become locked into irrational ratios. Numerical simulations confirm the experimental observations and also reveal that in the IPS state, the system dynamics are chaotic. Our studies provide a solid step toward further studies of IPS.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0118986

DOI: 10.1371/journal.pone.0118986

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