NDLI: Effect of Polyester Mooring Stiffness on SCR Design for Semi Applications

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Cao, Peimin Thompson, Hugh Kwan, Tom
Copyright Year	2012
Abstract	Polyester rope mooring system has been widely accepted as a reliable and cost effective choice for deepwater mobile offshore drilling and floating production units in recent years. Polyester rope is made of a visco-elastic material and its stiffness is affected by mean tension, tension amplitude, loading period, and loading history. This creates complexity and uncertainty in the design of hull, mooring and riser systems. This paper summarizes the results of a JIP study investigating the effect of polyester rope stiffness on the SCR design of a semi-submersible FPU at two water depths in the Gulf of Mexico (GoM). A two-slope static-dynamic stiffness model proposed in the recently issued ABS “Guidance Notes on The Application of Fiber Rope for Offshore Mooring”[1] is used in the global motion analysis to provide input for the riser analysis. Parametric studies of SCR extreme analysis, wave fatigue analysis, and VIM fatigue analysis have been performed. Based on the results, recommendations on the impact of rope stiffness to the riser design are presented.
Sponsorship	Ocean, Offshore and Arctic Engineering Division
Starting Page	415
Ending Page	422
Page Count	8
File Format	PDF
ISBN	9780791844885
DOI	10.1115/OMAE2012-83487
Volume Number	Volume 1: Offshore Technology
Conference Proceedings	ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
Language	English
Publisher Date	2012-07-01
Publisher Place	Rio de Janeiro, Brazil
Access Restriction	Subscribed
Subject Keyword	Water Uncertainty Mooring Fatigue analysis Underwater drilling Waves Fibers Hull Design Pipeline risers Gulf of mexico Ropes Ocean engineering Semi-submersible offshore structures Stiffness Tension Polyester fabrics Risers (casting) Viscoelastic materials
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Effect of Polyester Mooring Stiffness on SCR Design for FPSO Application

A Large Deck Extendable Draft Platform Design for Ultra-Deepwater in the Gulf of Mexico

The State of Dry-Tree Semi-Submersible Platforms for Deepwater Gulf of Mexico

Advantages of Polyester Mooring for Deepwater Floaters

Riser VIM Fatigue Design Induced by Deep Draft Semi-Submersible

Optimized Global Sizing Approach for Gulf of Mexico Production Semisubmersible

Characterization of Polyester Mooring Lines

Design Features of Risers for the Extendable Draft Platform (EDP)

Steel Lazy Wave Riser Design for Semi-Submersible in Harsh Environment

Effect of Polyester Mooring Stiffness on SCR Design for Semi Applications

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