Extreme and fatigue analysis of a dynamic subsea power umbilical

Yan, Qu1; Hong, Guo2; Lei, Zhang3; Zhenqin, Yuan3; Juyue, Li3

10.1115/OMAE2019-95123

2019

2153-4772

ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019

5A-2019

Glasgow, United kingdom

THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA

American Society of Mechanical Engineers (ASME)

This paper presents an analysis procedure and results of extreme loading effect and fatigue damage of a dynamic subsea power umbilical. The umbilical was proposed by Hengtong submarine power cable Co., Ltd intended for a FPSO in south China sea at a water depth of 400 m. The umbilical cross section consists of three copper conductor strands and two layers of steel amour wires. A pliant wave configuration is used to accommodate large offset of the FPSO in the harsh environmental condition. Orcaflex is used to verify the tension and curvature of the umbilical in extreme condition against the umbilical capacity curve. UFLEX is used to estimate the mechanical properties and local stress of the umbilical. Fatigue damage is estimated by using results from the global analysis and local stress analysis. The results show that the umbilical cross section design satisfices the acceptance criteria for both extreme and fatigue damage.
Copyright © 2019 ASME

第一

英语

EI ; CPCI-S

Engineering

Engineering, Ocean ; Engineering, Mechanical

WOS:000513099900004

20194907786257

Arctic engineering ; Fatigue damage ; Offshore oil well production ; Stress analysis

Oil Field Production Operations:511.1 ; Oil Field Equipment:511.2 ; Materials Science:951

EV Compendex

1.Southern University of Science and Technology, Shenzhen, China
2.Research Institute of CNOOC, Beijing, China
3.HengTong Submarine Power Cable Co.,Ltd, Changshu, China

Yan, Qu,Hong, Guo,Lei, Zhang,et al. Extreme and fatigue analysis of a dynamic subsea power umbilical[C]. THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA:American Society of Mechanical Engineers (ASME),2019.