An experimental facility has been designed to study the transversal and response associated with vortex-induced vibration of a totally submerged horizontal cylinder hang on horizontally elastic support under the influence of vertical harmonic oscillating motion. The study aims to analyze the vortex self induced vibration (VSIV) phenomena, which occurs for instance with Steel Catenary Risers (SRCs) the deep offshore connected to floating platforms. These vibrations occur even in the absence of a current. The experiments were conducted in a tank at the LOC/COPPE/UFRJ (Laboratory of Waves and Current of COPPE, Federal University of Rio de Janeiro). The tests were carried out with Keulegan-Carpenter numbers equal to 10 and 20 and for several exciting frequencies. The vertical trajectories of the VSIV motion were then classified based on its different configurations such as oval-shape, eight-shape and etc. Different ranges of reduced velocities were also considered. The amplitude and frequency of transversal motion and also the forces calculated.
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ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
June 19–24, 2011
Rotterdam, The Netherlands
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4439-7
PROCEEDINGS PAPER
Further Investigations on Vortex Self Induced Vibration (VSIV)
Antonio Carlos Fernandes,
Antonio Carlos Fernandes
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Sina Mirzaei Sefat,
Sina Mirzaei Sefat
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Luis Victor Casca˜o,
Luis Victor Casca˜o
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Pedro Vilas Boas,
Pedro Vilas Boas
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Ricardo Francis
Ricardo Francis
Petrobras, Rio de Janeiro, Brazil
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Antonio Carlos Fernandes
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Sina Mirzaei Sefat
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Luis Victor Casca˜o
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Pedro Vilas Boas
Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
Ricardo Francis
Petrobras, Rio de Janeiro, Brazil
Paper No:
OMAE2011-50187, pp. 651-656; 6 pages
Published Online:
October 31, 2011
Citation
Fernandes, AC, Sefat, SM, Casca˜o, LV, Boas, PV, & Francis, R. "Further Investigations on Vortex Self Induced Vibration (VSIV)." Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7: CFD and VIV; Offshore Geotechnics. Rotterdam, The Netherlands. June 19–24, 2011. pp. 651-656. ASME. https://doi.org/10.1115/OMAE2011-50187
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