Aiming to complete the results presented before by Gonçalves et al. (2011) – Experimental Study on Vortex-Induced Motions (VIM) of a Large-Volume Semi-Submersible Platform, OMAE2011, the present work brings new experimental results on VIM of a large-volume semi-submersible platform, particularly concerning its coexistence with waves in the free surface. The VIM tests were performed in the presence of three regular waves and also three different conditions of sea state. According to the results, considerable differences between the presence of regular or irregular waves were observed. The motion amplitudes in the transverse direction decreased harshly when the regular waves were performed and no VIM was observed. In the case of sea state condition tests, the amplitudes decreased slightly but a periodic motion characterized by the VIM was observed. The results herein presented concern transverse and yaw motion amplitudes, as well as spectral analyses.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4492-2
PROCEEDINGS PAPER
Wave Effects on Vortex-Induced Motion (VIM) of a Large-Volume Semi-Submersible Platform
Rodolfo T. Gonçalves,
Rodolfo T. Gonçalves
University of São Paulo, São Paulo, SP, Brazil
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Guilherme F. Rosetti,
Guilherme F. Rosetti
University of São Paulo, São Paulo, SP, Brazil
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André L. C. Fujarra,
André L. C. Fujarra
University of São Paulo, São Paulo, SP, Brazil
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Kazuo Nishimoto,
Kazuo Nishimoto
University of São Paulo, São Paulo, SP, Brazil
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Allan C. Oliveira
Allan C. Oliveira
Petrobras, Rio de Janeiro, RJ, Brazil
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Rodolfo T. Gonçalves
University of São Paulo, São Paulo, SP, Brazil
Guilherme F. Rosetti
University of São Paulo, São Paulo, SP, Brazil
André L. C. Fujarra
University of São Paulo, São Paulo, SP, Brazil
Kazuo Nishimoto
University of São Paulo, São Paulo, SP, Brazil
Allan C. Oliveira
Petrobras, Rio de Janeiro, RJ, Brazil
Paper No:
OMAE2012-83017, pp. 471-482; 12 pages
Published Online:
August 23, 2013
Citation
Gonçalves, RT, Rosetti, GF, Fujarra, ALC, Nishimoto, K, & Oliveira, AC. "Wave Effects on Vortex-Induced Motion (VIM) of a Large-Volume Semi-Submersible Platform." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Ocean Engineering; CFD and VIV. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 471-482. ASME. https://doi.org/10.1115/OMAE2012-83017
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