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.
- Ocean, Offshore and Arctic Engineering Division
Linear Stability Approach to Explain Lock-In Transition and Time Sharing in Vortex-Induced Vibrations of Slender Structures
- Views Icon Views
- Share Icon Share
- Search Site
Violette, R, Szydlowski, J, & de Langre, E. "Linear Stability Approach to Explain Lock-In Transition and Time Sharing in Vortex-Induced Vibrations of Slender Structures." Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV. Honolulu, Hawaii, USA. May 31–June 5, 2009. pp. 869-876. ASME. https://doi.org/10.1115/OMAE2009-80132
Download citation file: