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http://dx.doi.org/10.26748/KSOE.2018.6.32.4.215

Study on Optimization of Design Parameters for Offshore Mooring System using Sampling Method  

Kang, Soo-Won (Department of Naval Architecture and Ocean System Engineering, Korea Maritime and Ocean University)
Lee, Seung-Jae (Department of Naval Architecture and Ocean System Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Ocean Engineering and Technology / v.32, no.4, 2018 , pp. 215-221 More about this Journal
Abstract
In this study, the optimal design of a mooring system was carried out. Unlike almost all design methods, which are based on the deterministic method, this study focused on the probabilistic method. The probabilistic method, especially the design of experiment (DOE), could be a good way to cover some of the drawbacks of the deterministic approach. There various parameters for a mooring system, as widely known, including the weight, length, and stiffness of line. Scenarios for the mooring system parameters were produced using the Latin Hypercube Sampling method of the probabilistic approach. Next, a vessel-mooring system coupled analysis was performed in Orcaflex. A total of 50 scenarios were used in this study to optimize the initial design by means of a genetic algorithm. Finally, after determining the optimal process, a reliability analysis was performed to understand the system validity.
Keywords
Mooring system; Mooring tension; Design of experiment; Reliability analysis;
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