Parametric resonance of intrinsic localized modes in coupled cantilever arrays
| Autor: | Yasuo Matsushita, Masayuki Kimura, Takashi Hikihara |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Cantilever Condensed matter physics Differential equation General Physics and Astronomy Parameter space 01 natural sciences 010305 fluids & plasmas Nonlinear system Lattice (order) 0103 physical sciences Parametric oscillator 010306 general physics Nonlinear Sciences::Pattern Formation and Solitons Excitation Parametric statistics |
| Zdroj: | Physics Letters A. 380:2823-2827 |
| ISSN: | 0375-9601 |
| DOI: | 10.1016/j.physleta.2016.06.048 |
| Popis: | In this study, the parametric resonances of pinned intrinsic localized modes (ILMs) were investigated by computing the unstable regions in parameter space consisting of parametric excitation amplitude and frequency. In the unstable regions, the pinned ILMs were observed to lose stability and begin to fluctuate. A nonlinear Klein–Gordon, Fermi–Pasta–Ulam-like, and mixed lattices were investigated. The pinned ILMs, particularly in the mixed lattice, were destabilized by parametric resonances, which were determined by comparing the shapes of the unstable regions with those in the Mathieu differential equation. In addition, traveling ILMs could be generated by parametric excitation. |
| Databáze: | OpenAIRE |
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