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Volume 10, Issue 18 (2-2023)                   ijmt 2023, 10(18): 65-75 | Back to browse issues page

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edalat P, Imani Bidgoli S. The Effect of FPSO’s Mooring System on Dynamic Response and Fatigue Life of Riser. ijmt 2023; 10 (18) :65-75
URL: http://ijmt.ir/article-1-771-en.html
The Effect of FPSO’s Mooring System on Dynamic Response and Fatigue Life of Riser
Pedram Edalat *1, Saeed Imani Bidgoli2
1- Assistant Professor, Mechanical Engineering Department, Petroleum University of Technology
2- Petroleum University of Technology
Abstract:   (502 Views)
The effects of mooring system selection (turret and spread) are investigated on dynamic performance and fatigue life of steel catenary riser (SCR) and lazy-wave steel catenary riser (LWSCR) as two of the most conventionally used flexible risers. The fully coupled hull, mooring, and riser models are simulated by finite element method under the same environmental conditions and floater specification. It was demonstrated that the changes in the mooring system from turret to spread have more influence on SCR than LWSCR in terms of the displacement range of the TDP, dynamic response, and maximum von-misses stress. The fatigue results of the two types of risers are considerably affected by mooring systems selection. According to the results, it can be inferred that the use of the turret mooring system increases the fatigue life of SCR while in LWSCR, the spread mooring system improves fatigue life.
Keywords: Turret/spread mooring, Catenary riser, Lazy-wave, FPSO, Mooring-riser interaction
Full-Text [PDF 1213 kb]   (230 Downloads)    
Type of Study: Research Paper | Subject: Offshore Structure
Received: 2021/10/30 | Accepted: 2023/02/22
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International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.