Coupled cantilever array with tunable on-site nonlinearity and observation of localized oscillations

被引：46
作者：
Kimura, Masayuki [1 ]
Hikihara, Takashi [1 ]
机构：
[1] Kyoto Univ, Dept Elect Engn, Nishikyo Ku, Kyoto 6158510, Japan
来源：
PHYSICS LETTERS A | 2009年 / 373卷 / 14期
关键词：
Intrinsic localized mode; Discrete breather; Coupled cantilever array; MAGNETOELASTIC BEAM SYSTEM; WAVE-GUIDE ARRAYS; DISCRETE BREATHERS; MODES; SOLITONS; ENERGY; MANIPULATION; LATTICES;
D O I：
10.1016/j.physleta.2009.02.005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A macro-mechanical cantilever array is newly proposed for experimental investigations of intrinsic localized mode (ILM). There has never reported such a macro-system which show ILMs mechanically. The array consists of cantilevers, electromagnets faced on the cantilevers, elastic rods for coupling between cantilevers, and a voice coil motor for external excitation. Nonlinearity appears in the magnetic interaction, that is, the restoring force of cantilever. Therefore it is tunable. In the array, ILMs are experimentally generated by the sinusoidal forced excitation. Observed ILMs are also identified in the model equation for the array. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：1257 / 1260
页数：4
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