Due to the installation of LNG terminals moored in proximity to the coast, the wave kinematics in shallow water and the consequence on the behavior of those terminals have recently became a major concern of the offshore industry. One key issue is the accurate simulation of the low-frequency motions of LNG carriers, specially the surge, for which the vessel presents low damping, in order to perform the design of the mooring system. The present paper focuses on the effect of wave directionality on second-order slow-drift loads and the related response of the vessel. The paper describes results of model tests in regular cross waves — monochromatic but coming from two directions separated by 90 degrees, as well as bichromatic cross waves. The new “middle field” formulation extended to the case of cross waves, is used to compute the wave drift loads and low-frequency Quadratic Transfer Function (QTF). The results are compared with those from the model tests.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4818-0
PROCEEDINGS PAPER
Second-Order Wave Loads on a LNG Carrier in Multi-Directional Waves
Mathieu Renaud,
Mathieu Renaud
Bureau Veritas, Paris La De´fense, France
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Fla´via Rezende,
Fla´via Rezende
Bureau Veritas, Paris La De´fense, France
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Xiao-Bo Chen,
Xiao-Bo Chen
Bureau Veritas, Paris La De´fense, France; HEU, China
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Radboud van Dijk
Radboud van Dijk
MARIN, The Netherlands
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Mathieu Renaud
Bureau Veritas, Paris La De´fense, France
Fla´via Rezende
Bureau Veritas, Paris La De´fense, France
Olaf Waals
MARIN, The Netherlands
Xiao-Bo Chen
Bureau Veritas, Paris La De´fense, France; HEU, China
Radboud van Dijk
MARIN, The Netherlands
Paper No:
OMAE2008-57409, pp. 363-370; 8 pages
Published Online:
July 27, 2009
Citation
Renaud, M, Rezende, F, Waals, O, Chen, X, & van Dijk, R. "Second-Order Wave Loads on a LNG Carrier in Multi-Directional Waves." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 1: Offshore Technology. Estoril, Portugal. June 15–20, 2008. pp. 363-370. ASME. https://doi.org/10.1115/OMAE2008-57409
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