DocumentCode
1790392
Title
Mass considerations for VIV driven cantilever beam and tethered buoy with internal pendulum
Author
Liu, Wenxin ; D´Angelo, Brian
Author_Institution
SPAWAR Syst. Center Pacific, San Diego, CA, USA
fYear
2014
fDate
14-19 Sept. 2014
Firstpage
1
Lastpage
6
Abstract
For resonance driven energy harvesting devices, mass considerations play a critical role in matching structural resonant frequency to flow driven Vortex Induced Vibration (VIV) frequencies for optimized vibration inputs. In this paper, we present: 1) experimental data showing how mass ratio can sustain “lock-in” effects for a cylinder oscillator in roughly 1 m/s flows and 2) analytical computations showing the effect of buoy and pendulum mass on matching resonant frequency to VIV frequency.
Keywords
beams (structures); cantilevers; energy harvesting; mass; oscillators; pendulums; vibrations; vortices; VIV driven cantilever beam; VIV frequencies; buoy mass; cylinder oscillator; internal pendulum; mass ratio; pendulum mass; resonance driven energy harvesting devices; resonant frequency matching; tethered buoy; vortex induced vibration; Energy harvesting; Equations; Mathematical model; Oscillators; Resonant frequency; Springs; Vibrations; Vortex Induced Vibrations; cylinder oscillator buoy; modeling; pendulum;
fLanguage
English
Publisher
ieee
Conference_Titel
Oceans - St. John's, 2014
Conference_Location
St. John´s, NL
Print_ISBN
978-1-4799-4920-5
Type
conf
DOI
10.1109/OCEANS.2014.7003232
Filename
7003232
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