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A new adaptive resonance frequency of piezoelectric components used for vibration damping.


ABSTRACT: This paper describes two methods for vibration damping in a broad band frequency range using a piezoelectric patch. The first method, applied to an adaptive device, uses a bias (static voltage control), which applies stresses or releases stresses in a piezoelectric component to modify its mechanical characteristics and thereby its resonance frequency. The second method is based on a semipassive approach [synchronized switch damping (SSD)], developed to control structural vibration damping using a piezoelectric component. Attenuations of 10 and 4.8 dB in vibration velocity have been obtained using the adaptive frequency and SSD methods.

SUBMITTER: Faiz A 

PROVIDER: S-EPMC2856175 | biostudies-other | 2010 Apr

REPOSITORIES: biostudies-other

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