Observation of Locked Intrinsic Localized Vibrational Modes in a Micromechanical Oscillator Array
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Open Access
- 30 January 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 90 (4) , 044102
- https://doi.org/10.1103/physrevlett.90.044102
Abstract
The nonlinear vibrational properties of a periodic micromechanical oscillator array have been measured. For sufficiently large amplitude of the driver, the optic mode of the di-element cantilever array becomes unstable and breaks up into excitations ranging over only a few cells. A driver-induced locking effect is observed to eternalize some of these intrinsic localized modes so that their amplitudes become fixed and the modes become spatially pinned.Keywords
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