원유 생산. 저장. 하역선의 갑판침수에 관한 연구
A Study on the Deck Wetness of the FPSO
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Abstract
As the number of offshore structure is growing in deep waters, there have been increased damages of it. These floating structures in offshore locations exposed to harsh environmental conditions. In recent years, there has been a growing attention around damages on bow and deck on FPSO caused by waves in steep storm condition. This paper describes a study of the water on deck due to the dynamic behavior of a FPSO with turret mooring system. The nonlinear motions of the FPSO are simulated under external forces due to wave, current, wind, and mooring forces in the time domain. The direct integration method is employed to estimate low frequency drift wave forces. The current forces are calculated by using slow motion maneuvering equations in the horizontal plane. The coefficients of a model for wind forces are calculated from Isherwood’ s experimental data and the variation of wind speed is estimated by wind spectrum according to the guidelines of API-RP2A.
참고문헌 (8)
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