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Relaxation oscillation patterns induced by amplitude-modulated excitation in the Duffing system

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  • Song, Jin
  • Han, Xiujing
  • Zou, Yong
  • Jiang, Yandan
  • Bi, Qinsheng

Abstract

Relaxation oscillations are typical fast–slow behaviors in the excited Duffing system. The present paper focuses on the effects of amplitude-modulated excitation on relaxation oscillations. We show that the quasi-static process of the relaxation oscillations can be prolonged in the presence of amplitude-modulated excitation. Then, a two-parameter bifurcation set is plotted to investigate the transition of the relaxation oscillations. In particular, we find that the hysteresis with four fold points can be split into the one with eight fold points. Based on this, dynamical mechanism underlying the appearance of a compound relaxation oscillation patterns is revealed. Our study shows that amplitude-modulated excitation has great effects on the fast–slow dynamics.

Suggested Citation

  • Song, Jin & Han, Xiujing & Zou, Yong & Jiang, Yandan & Bi, Qinsheng, 2022. "Relaxation oscillation patterns induced by amplitude-modulated excitation in the Duffing system," Chaos, Solitons & Fractals, Elsevier, vol. 164(C).
    • Handle: RePEc:eee:chsofr:v:164:y:2022:i:c:s0960077922007445
    DOI: 10.1016/j.chaos.2022.112555
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    References listed on IDEAS

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    1. Makouo, L. & Woafo, P., 2017. "Experimental observation of bursting patterns in Van der Pol oscillators," Chaos, Solitons & Fractals, Elsevier, vol. 94(C), pages 95-101.
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    Cited by:

    1. Song, Jin & Han, Xiujing, 2024. "Effects of modulation phase on relaxation oscillations in the Duffing system," Chaos, Solitons & Fractals, Elsevier, vol. 178(C).
    2. Wei, Mengke & Han, Xiujing, 2024. "Fast–slow dynamics related to sharp transition behaviors in the Rayleigh oscillator with two slow square wave excitations," Chaos, Solitons & Fractals, Elsevier, vol. 181(C).

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