Summary
International Symposium on Nonlinear Theory and Its Applications
2016
Session Number:C2L-D
Session:
Number:C2L-D-4
Experimental Excitations of Intrinsic Localized Modes in an Air-Levitation-Type Coupled Oscillator Array
Yosuke Watanabe, Mai Nishimoto,
pp.-
Publication Date:2016/11/27
Online ISSN:2188-5079
Summary:
A mechanical apparatus of coupled oscillator chains has been constructed with designing new nonlinear springs and excitations of the intrinsic localized modes (ILMs) have been demonstrated with forcing at one end of the chains. The relation of restoring force of the spring to deflection is approximately cubic and symmetrical with respect to the equilibrium in the apparatus with appropriate tensions. One end of the chains is fixed and the other is driven sinusoidally in the direction of the chains at a frequency. It has been observed that, driving with a frequency above the cutoff, localized oscillations can be excited intermittently at the driven end and they are propagated along the chains at a constant speed (mobile type of ILMs.)