Deterministic and stochastic analyses of the lock-in phenomenon in vortex-induced vibrations. Shoshani, O. Journal of Sound and Vibration, 434:17–27, November, 2018. Place: London Publisher: Academic Press Ltd- Elsevier Science Ltd WOS:000444001700002doi abstract bibtex The phenomenon of lock-in in vortex-induced vibrations of bluff bodies is studied from a phenomenological model perspective. The theoretical investigation includes asymptotic deterministic and stochastic analyses which are compared with experimental measurements and Monte-Carlo simulations. It is shown that, for the considered parameter space, the model can possess only a single or multiple (co-existing) synchronized solutions, where the stable synchronized solution is hardly affected by the turbulence-induced random fluctuations far from the bifurcation points. These results provide a relatively simple connection between experimental measurements and the model predictions, and they confirm the validity of the phenomenological model for vortex-induced vibrations problems that involve a turbulent wake. (c) 2018 Elsevier Ltd. All rights reserved.
@article{shoshani_deterministic_2018,
title = {Deterministic and stochastic analyses of the lock-in phenomenon in vortex-induced vibrations},
volume = {434},
issn = {0022-460X},
doi = {10.1016/j.jsv.2018.07.023},
abstract = {The phenomenon of lock-in in vortex-induced vibrations of bluff bodies is studied from a phenomenological model perspective. The theoretical investigation includes asymptotic deterministic and stochastic analyses which are compared with experimental measurements and Monte-Carlo simulations. It is shown that, for the considered parameter space, the model can possess only a single or multiple (co-existing) synchronized solutions, where the stable synchronized solution is hardly affected by the turbulence-induced random fluctuations far from the bifurcation points. These results provide a relatively simple connection between experimental measurements and the model predictions, and they confirm the validity of the phenomenological model for vortex-induced vibrations problems that involve a turbulent wake. (c) 2018 Elsevier Ltd. All rights reserved.},
language = {English},
journal = {Journal of Sound and Vibration},
author = {Shoshani, O.},
month = nov,
year = {2018},
note = {Place: London
Publisher: Academic Press Ltd- Elsevier Science Ltd
WOS:000444001700002},
keywords = {Fluid-structure interaction, Lock-in phenomenon, Vortex-induced vibration, Wake-oscillator, bifurcations, mass, model, motion, numerical-simulation, oscillator, rigid circular-cylinder, surface-roughness, systems, viv},
pages = {17--27},
}
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