Linear stability approach to explain lock-in transition and time sharing in vortex-induced vibrations of slender structures - École polytechnique Access content directly
Conference Papers Year : 2009

Linear stability approach to explain lock-in transition and time sharing in vortex-induced vibrations of slender structures

Abstract

In this paper, we use a linearized version of a wake oscillator model in order to understand VIV of flexible structures. By a simple analytical development on the stability of an infinite cable/wake system, we demonstrate the existence a temporal instability. The theoretical study is pushed further to finite structure, a tensioned cable, for which modes frequency, amplitude growth rate in time and velocity range of instability are easily derived. The developed concepts are used to explain experimentally observed behaviours of a low flexural rigidity tensioned beam undergoing VIV. Copyright © 2009 by ASME.
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hal-01025996 , version 1 (21-07-2014)

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R. Violette, J. Szydlowski, Emmanuel de Langre. Linear stability approach to explain lock-in transition and time sharing in vortex-induced vibrations of slender structures. 28th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2009), May 2009, Honolulu, United States. pp.869-876, ⟨10.1115/OMAE2009-80132⟩. ⟨hal-01025996⟩
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