Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Deck Wetness of the FPSO

원유 생산.저장.하역선의 갑판침수에 관한 연구

  • 임춘규 (현대미포조선(주) 사업기획부) ;
  • 이호영 (목포대학교 선박해양시스템 전공)
  • Published : 2004.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

As the number of offshore structure is glowing 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 slowing 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.

Keywords

References

  1. 손경호, 1992, "저속시 선체에 작용하는 조종유 체력 및 조종성능에 관한 연구," 대한조선학회 논문집, 제29권, 제3호, pp. 90-101.
  2. 이호영, 신현경, 임춘규, 김외현, 강점문, 윤명철, 2001, "불규칙파 중에서 돌핀 계류된 해상공항에 대한 운동," 대한조선학회 논문집, 제38권, 제2호, pp. 10-18.
  3. 임춘규, 이호영, 2003, "터렛계류된 FPSO 의 비선형 운동 해석," 대한조선학회 논문집, 제40권, 제2호, pp. 20-27.
  4. Bobillier, B., Chakrabarti, S. and Christiansen, P., 2000, "Generation and analysis of wind load on a floating offshore structure," "Proc. of OMAE Conf., pp. 1-7.
  5. Chan, H. S., 1990, "A Three-dimensional Technique for Predicting First and Second Order Hydrodynamic Forces on a Marine Vehicle Advancing in Waves," Ph. D. Thesis, University of Glasgow, pp. 255-266.
  6. Faires, J. D. and Burden, R. L., 1993, "Numerical methods," PWS Publishing, Boston.
  7. Hooft, J. P. and Pieffers, J. B. M., 1988, "Maneuverability of Frigates in Waves," Journal of Marine Technology, Vol.25, No.4.
  8. HR Wallingford Limited, 2002, "FPSO Response in Long and Short Crested Seas," Offshore Technology Report, HSE Books, pp. 3-10.
  9. Kim, B. K., 1999, "Memory effect on the stability of moored ships," 제38차 KTTC Workshop 논문집.