TITLE

Low frequency and large amplitude oscillations of cantilevers in viscous fluids

AUTHOR(S)
Aureli, Matteo; Porfiri, Maurizio
PUB. DATE
April 2010
SOURCE
Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p164102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We study nonlinear vibrations of cantilever beams oscillating in viscous fluids. A handleable expression for the inertial and damping loads due to the encompassing fluid is proposed. We expand on the canonical viscous diffusion theory by incorporating vortex shedding effects at large oscillation amplitudes. Comparison with experimental results on underwater low frequency and large amplitude oscillations of cantilevers is reported. The approach is applicable to the analysis of ionic polymer metal composites vibrating underwater.
ACCESSION #
49807543

 

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