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.
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Foundation item: Supported by China National 111 Project Under Grant No.B07019.
Hong-wei Wang was born in 1979. She is a lecturer at Harbin Engineering University. Her current research interests include mooring system design and analysis, global performance of floating structures, technology of model tests, etc.
Yong Luo was born in 1962. He is a professor at Harbin Engineering University. His current research interests include mooring system design and analysis, global performance of floating structures, etc.
Kai-ye Hu was born in 1980. He is a lecturer at Harbin Engineering university. His current research interests include nonlinear dynamic of ships, seakeeping, etc.
Teng-teng Li is a student in the Foreign Language Department at Capital University of Economics and Business. Her major is Business English.
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Wang, Hw., Luo, Y., Hu, Ky. et al. Mooring truncation design of a deepwater SPAR. J. Marine. Sci. Appl. 9, 168–174 (2010). https://doi.org/10.1007/s11804-010-9069-x
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DOI: https://doi.org/10.1007/s11804-010-9069-x