Considering the activities of floating systems pushing to the ultra-deepwater, the full scale mooring system needs to be truncated in order to carry out model tests in wave basin with reasonable model scale. In this paper, a Semi-Submersible moored by a catenary mooring system, which operates in 1500m water depth is truncated at 200m water depth. The mooring induced damping of truncated mooring system and prototype mooring system in 100 year typhoon condition in South China Sea are studied experimentally and numerically. The de-couple technique is applied to obtain truncated mooring damping, which is implemented by inputting the vessel six DOF motion responses and solving the mooring tensions, then decompose mooring tension in x, y and z directions. The vessel six DOF motion responses were measured in the model tests. For the full depth mooring system, the fully coupled dynamic analysis is carried out to study mooring induced damping. The results of truncated mooring damping will be compared with full depth mooring damping.
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ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5132-6
PROCEEDINGS PAPER
Analysis of Catenary Mooring Systems Based on Truncated Mooring Experiments Available to Purchase
Sheng Xu,
Sheng Xu
Universidade de Lisboa, Lisbon, Portugal
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Chunyan Ji,
Chunyan Ji
Jiangsu University of Science and Technology, Zhenjiang, China
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C. Guedes Soares
C. Guedes Soares
Universidade de Lisboa, Lisbon, Portugal
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Sheng Xu
Universidade de Lisboa, Lisbon, Portugal
Chunyan Ji
Jiangsu University of Science and Technology, Zhenjiang, China
C. Guedes Soares
Universidade de Lisboa, Lisbon, Portugal
Paper No:
OMAE2018-78697, V11AT12A024; 12 pages
Published Online:
September 25, 2018
Citation
Xu, S, Ji, C, & Guedes Soares, C. "Analysis of Catenary Mooring Systems Based on Truncated Mooring Experiments." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering. Madrid, Spain. June 17–22, 2018. V11AT12A024. ASME. https://doi.org/10.1115/OMAE2018-78697
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