|Table of Contents|

Citation:
 Hong-wei Wang*,Yong Luo,Kai-ye Hu and Teng-teng Li.Mooring Truncation Design of a Deepwater SPAR[J].Journal of Marine Science and Application,2010,(2):168-174.
Click and Copy

Mooring Truncation Design of a Deepwater SPAR

Info

Title:
Mooring Truncation Design of a Deepwater SPAR
Author(s):
Hong-wei Wang1* Yong Luo1 Kai-ye Hu2 and Teng-teng Li3
Affilations:
Author(s):
Hong-wei Wang1* Yong Luo1 Kai-ye Hu2 and Teng-teng Li3
1. Deepwater Engineering Research Center, Harbin Engineering University, Harbin 150001, China
 2. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
3.Foreign Language Department, Capital University of Economics and Business, Beijing 100070, China
Keywords:
SPAR mooring system truncation global response
分类号:
-
DOI:
-
Abstract:
To solve the dimensional limitations of physical models in tests, an equivalent water depth truncated design for a classical SPAR working in 913 m water was investigated. The water depth was reduced to 736m and then to 552m. As this was done, the mooring line lengths, EA value, and mass per meter were adjusted. Truncation rules and formulas for parameters and truncation factors were proposed. SPAR static characteristics were made to be consistent with those at full water depth. Then further time-domain coupled analysis was carried out for the SPAR when the mooring system experienced waves. The mooring lines were simulated by quasi-static method. Global responses and mooring line forces were found to agree well with test results for a prototype at that water depth. The truncation method proved to be robust and reliable.

References:

API Recommended practice 2SK, Third Edition (2005), American Petroleum Institute. Baarholm R (2006). Model testing of ultra deepwater floater systems: truncation and software verification methodology. Proceedings of the ASME 25th International Conference on Offshore Mechanics and Arctic Engineering, Hamburg, Germany, OMAE 2006- 92492.
 Gu G (2008). An overview on research and development of Spar platform. Ship Science and Technology, 30(3), 167-170.
 (in Chinese) Kendon TE (2008). Ultra-deepwater model testing of a semisubmersible and hybrid verification. Proceedings of the ASME 27th International Conference on Offshore Mechanics and Arctic Engineering, Estoril, Portugal, OMAE 2008 -57400.
Luo Y, Baudic S (2003). Predicting FPSO responses using model tests and numerical analysis. Proc. of The Thirteenth International Offshore and Polar Engineering Conference, Honolulu, Hawaii, USA. Stansberg CT (2004), Model testing for ultradeep waters. Offshore Technology Conference, Houston, USA, DOT 2004 -16587.
Steen A, Kim MH, Irani M (2004). Prediction of SPAR responses: model tests vs. analysis. Offshore Technology Conference, Houston, USA, OTC-16583.
 Su YH, Yang JM, Xiao LF (2007). The experiment of a deepwater spar and its mooring system at truncated water depth. Journal of Shanghai Jiaotong University, 41(9), 1454-1459.
 (in Chinese) Su YH, Yang JM, Xiao LF (2008). Multi objective optimization design of truncated mooring system based on equivalent static characteristics. China Offshore Platform, 23(1), 14-19. (in Chinese) Su YH, Yang JM, Xiao LF (2009). A comparative analysis of dynamic characteristics of truncated mooring lines in deepwater platform model test. The Ocean Engineering, 27(1), 17-21.
 (in Chinese) Ward EG (2004), Model-the-model: validating analysis models of deepwater structures with model tests. Offshore Technology Conference, Houston, USA, DOT 2004 -16586.
Waals OJ, Radboud RT (2004). Truncation methods for deep water mooring systems for a catenary moored FPSO and a semi taut moored semi submersible. Deep Offshore Technology Conference, Houston, USA, DOT 2004 -2087.
 Wichers J, Devlin PV (2004). Benchmark model tests on the deepstar theme structures FPSO, SPAR and TLP. Offshore Technology Conference, Houston, USA, OTC-16582.
Zhang HM, Yang JM, Xiao LF (2006). Investigation on the usability of the model test based on equivalent water-depth truncation. Journal of Shanghai Jiaotong University, 40(6), 1059-1063.
 (in Chinese) Zhang F, Yang JM, Li RP (2005). A review on the technical development of spar platform. China Offshore Platform, 20(2), 6-11.
 (in Chinese) Zhang F, Yang JM, Li RP, Liu CG (2008) Research on the concept design of Spar platform. The Ocean Engineering, 26(2), 1-10. (in Chinese)

Memo

Memo:
-
Last Update: 2010-06-01