Summary
International Symposium on Nonlinear Theory and Its Applications
2022
Session Number:C4L-B
Session:
Number:C4L-B-04
Estimation of Initial Conditions for Generating Moving ILMs from Wavenumber-Frequency Spectrum of Static ILMs in FPU-NKG Mixed Lattice
Kosuke Kawasaki , Masayuki Kimura , Shinji Doi,
pp.523-526
Publication Date:12/12/2022
Online ISSN:2188-5079
Summary:
Intrinsic localized mode (ILM) is localized vibration of energy in nonlinear coupled oscillator arrays. Estimating initial values of moving ILMs is required in order to investigate the characters of moving ILMs. In this report, moving ILMs are generated by estimating initial values from static ILMs in frequency-wavenumber plane. In the estimation, an approximation by Gaussian function is used. The created initial values move successfully and their localization sustains for a long time.