AI Article Synopsis

  • The paper investigates how energy is transported in a model consisting of three linked oscillators, one of which is excited, leading to nonstationary energy transport states.
  • It identifies three distinct energy transport states that vary in how energy is distributed spatially and how intensely it travels along the chain.
  • The authors employ both numerical simulations and analytical methods to understand the complex mechanisms behind transitions between these energy transport states, finding consistency between the two approaches.

Article Abstract

In the present paper, we study the mechanism of formation and bifurcations of highly nonstationary regimes manifested by different energy transport intensities, emerging in an anharmonic trimer model. The basic model under investigation comprises a chain of three coupled anharmonic oscillators subject to localized excitation, where the initial energy is imparted to the first oscillator only. We report the formation of three basic nonstationary transport states traversed by locally excited regimes. These states differ by spatial energy distribution, as well as by the intensity of energy transport along the chain. In the current study, we focus on numerical and analytical investigation of the intricate resonant mechanism governing the inter-state transitions of locally excited regimes. Results of the analytical study are in good agreement with the numerical simulations of the trimer model.

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http://dx.doi.org/10.1063/1.4954878DOI Listing

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