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Studies on VIV Fatigue Behavior in SCRS of Hybrid Riser Systems

[+] Author Affiliations
Luciano Tardelli Vieira, Breno Pinheiro Jacob, Antonio Carlos Fernandes

Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil

Ricardo Franciss

Petrobras, Rio de Janeiro, RJ, Brazil

Paper No. OMAE2002-28045, pp. 33-39; 7 pages
doi:10.1115/OMAE2002-28045
From:
  • ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
  • 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 1
  • Oslo, Norway, June 23–28, 2002
  • Conference Sponsors: Ocean, Offshore, and Arctic Engineering Division
  • ISBN: 0-7918-3611-8 | eISBN: 0-7918-3599-5
  • Copyright © 2002 by ASME

abstract

The main objective of this work is to demonstrate the application of an analysis methodology for hybrid riser configurations. Such configurations are based on submerged buoys that are connected by jumpers to a floating production unit (a FPSO vessel for instance), and by risers to the seabottom. The focus is on VIV-induced fatigue behavior of the steel catenary risers that connect the buoy to the seabottom. The methodology employs numerical tools for the nonlinear static analysis, modal analysis, VIV and fatigue behaviour. The application of the methodology is illustrated with the analysis of a practical case study located in Campos Basin.

Copyright © 2002 by ASME

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