Reliability Based Factors of Safety for VIV Fatigue Using NDP Riser High Mode VIV Tests
Author(s)Tognarelli, M.; Constantinides, Y.; Oakley, O.; Fontaine, Ebraheem I; Marcollo, Hayden; Vandiver, John Kim; Triantafyllou, Michael S; Larsen, Gretchen K.; ... Show more Show less
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Understanding the level of conservatism in a riser system design for vortex-induced vibration (VIV) fatigue is an important issue for operators. This study represents a demonstration of the calibration methodology to derive consistent values for the Factor of Safety (FoS). The exercise is performed here based on medium scale VIV data and utilizing the most commonly used VIV prediction software by industry. The results emphasize the need for (i) a coherent approach to estimate the FoS to be used and (ii) monitoring/measurement of software improvements as this may increase risk of failure if the influence of such improvements on the FoS is not quantified.
DepartmentMassachusetts Institute of Technology. Center for Environmental Health Sciences; Massachusetts Institute of Technology. Department of Mechanical Engineering
Volume 7: CFD and VIV; Offshore Geotechnics
American Society of Mechanical Engineers
Fontaine, E., H. Marcollo, K. Vandiver, M. Triantafyllou, C. Larsen, M. Tognarelli, Y. Constantinides, and O. Oakley. “Reliability Based Factors of Safety for VIV Fatigue Using NDP Riser High Mode VIV Tests.” Volume 7: CFD and VIV; Offshore Geotechnics (2011).
Final published version