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http://dx.doi.org/10.3744/SNAK.2016.53.5.435

Extreme Mooring Analysis of Turret Moored LNG-FSRU  

Lee, Min-Kyeong (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Jung, Kwang-Hyo (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Park, Sung-Boo (Sungdong Shipbuilding and Marine Engineerings)
Yu, Byeong-Seok (Hanjin Heavy Industry R&D Center)
Chung, Yun-Suk (Bureau Veritas Korea)
Publication Information
Journal of the Society of Naval Architects of Korea / v.53, no.5, 2016 , pp. 435-446 More about this Journal
Abstract
In this study, hydrodynamic and mooring analysis for LNG FSRU moored by an internal turret with 9 mooring lines are numerically performed using commercial softwares, Hydrostar and Ariane. Met-ocean combinations for screening method are taken from wave governed condition(BV Rule Note NR 493) with relative heading between wave and wind between −45° and +45° and relative heading between wind and current between −30° and +30°. Extreme mooring analysis and sensitivity analysis are performed for intact and damaged (=one line missing) conditions and the parameters for sensitivity analysis are wave peak period, peak enhancement factor and line pretension. In the viewpoint of the design tension in mooring line, chain diameter is designed to satisfy safety factor for each conditions. As the chain diameter is increased from 152mm to 171mm, the designtension is reduced while the minimum breaking load is increased.
Keywords
LNG-FSRU(Liquified Natural Gas-Floating Storage&Re-gasification Unit); Turret mooring system; Extreme mooring analysis; Sensitivity analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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