An investigation was carried out for the fatigue damages due to VIV in a flexible riser evaluated with three different VIV simulation methodologies. One methodology is provided in commercial software Shear7 which is established based on mode superposition. The other two are provided in commercial software OrcaFlex which are established based on global dynamic simulation in time domain. One of the two time-domain methods is referred to as Iwan and Blevings model formed with a wake oscillator, and the other is referred to as Tracking (1) model made with vortex tracking method. Fatigue damages in tensile armoring wires of the riser were evaluated with RMS curvature ranges resulting from the three methodologies separately. A detailed comparison between the damages and between RMS curvature ranges is made and then some discussions and recommendations are presented.
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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:
978-0-7918-4436-6
PROCEEDINGS PAPER
An Investigation of Fatigue Damage due to VIV in Flexible Riser With Different Methodologies
Yanqiu Zhang,
Yanqiu Zhang
Wellstream International Ltd, Houston, TX
Search for other works by this author on:
Zhimin Tan
Zhimin Tan
Wellstream International Ltd, Houston, TX
Search for other works by this author on:
Yanqiu Zhang
Wellstream International Ltd, Houston, TX
Zhimin Tan
Wellstream International Ltd, Houston, TX
Paper No:
OMAE2011-49036, pp. 25-33; 9 pages
Published Online:
October 31, 2011
Citation
Zhang, Y, & Tan, Z. "An Investigation of Fatigue Damage due to VIV in Flexible Riser With Different Methodologies." Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Volume 4: Pipeline and Riser Technology. Rotterdam, The Netherlands. June 19–24, 2011. pp. 25-33. ASME. https://doi.org/10.1115/OMAE2011-49036
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