Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2004.11a
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- Pages.183-187
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- 2004
An Analysis of Rolling Performance for a Barge-Type FPSO
바아지형 FPSO의 횡운동 성능에 대한 연구
- CHOI YOON-RAK (School of Transportation Systems Engineering, University of Ulsan) ;
- KIM JIN-HA (Korea Research Institute of Ships & Ocean Engineering, KORDI) ;
- SONG MYUNG-JAE (Ship & Ocean R&D Institute, Daewoo Shipbuilding & Marine Engineering Co. Ltd.) ;
- KIM YOUNG-SU (Ship & Ocean R&D Institute, Daewoo Shipbuilding & Marine Engineering Co. Ltd.)
- 최윤락 (울산대학교 수송시스템공학부) ;
- 김진하 (한국해양연구원 해양시스템안전연구소) ;
- 송명재 (대우조선해양(주) 선박해양기술연구소) ;
- 김용수 (대우조선해양(주) 선박해양기술연구소)
- Published : 2004.11.01
Abstract
To predict rolling performance for a barge-type FPSO, the evaluation of correct nonlinear roll damping is critical. The squall section of FPSO causes a fair amount of viscous damping effect. Free roll decoy tests were conducted to estimate nonlinear roll damping for a barge-typ FPSO of three different loading conditions. The roll motion RAO was deduced by model tests in the wave condition of wideband spectrum. In numerical calculation, the quadratic damping was considered as equivalent linear damping using the results of free roll decay test. Tested roll performance in JONSWAP wave spectrum was compared with numerical results. These two results show good agreement, in spite of proximity in peak wave period and roll natural period.
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