DOI QR코드

DOI QR Code

Study on Ice Parameters Affecting DP Performance of FPSO in Arctic Ocean

극지용 FPSO의 DP 성능에 영향을 미치는 빙 파라미터 분석에 관한 연구

  • Choi, Sol-Mi (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University) ;
  • Lee, Seung-Jae (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University) ;
  • Han, Solyoung (Offshore Floater Research, Samsung Heavy Industries Co., LTD) ;
  • Lee, Jaeyong (Department of Naval Architecture and Ocean Engineering, Dong-eui University)
  • 최솔미 (한국해양대학교 조선해양시스템공학과) ;
  • 이승재 (한국해양대학교 조선해양시스템공학과) ;
  • 한소령 (삼성중공업 해양부유체연구파트) ;
  • 이재용 (동의대학교 조선해양공학과)
  • Received : 2017.12.22
  • Accepted : 2018.02.05
  • Published : 2018.02.28

Abstract

Recently, various efforts have been made to develop oil and gas in the Arctic Ocean. It is very important to consider the load caused by ice in designing floating structures in the area. The magnitude of the ice load and its impact on a structure should be considered. In this paper, we analyze ice parameters affecting the DP performance of FPSO with a DP-assisted mooring system. Several ice characteristics are selected, and the resulting ice load is calculated using GEM software. Numerous simulations are conducted while changing the values of the parameters, and DP capability plots are generated to visualize the effects of changing these parameters. It is shown that the ice drift speed and thickness are the major properties to be considered in DP system design. The limitations of the analysis and future work are discussed in the conclusion.

Keywords

References

  1. Daley, C., Alawneh, S., Peters, D., Quinton, B., Colbourne, B., 2012. GPU Modeling of Ship Operations in Pack Ice. International Conference and Exhibition on Performance of Ships and Structures in Ice, Banff Alberta Canada, 20-23.
  2. Daley, C., Alawneh, S., Peters, D., Colbourne, B., 2014. GPU-Event-Mechanics Evaluation of Ice Impact Load Statistics. OTC Arctic Technology Conference, Offshore Technology Conference.
  3. Han, S.L., Kim, H.J., Lee, D.Y., Kim, B.K., 2017. Capability Analysis of Dynamic Positioning for the Arctic FPSO in ICE. Proceeding of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions, Busan Korea.
  4. International Marine Contractors Association(IMCA)., 2000. Specification for DP Capability Plots. IMCA M 140.
  5. International Towing Tank Conference(ITTC)., 1999. Testing and Extrapolation Methods Ice Testing General Guidelines. ITTC Recommended Procedures and Guidelines, 7.5-02-04-01.
  6. Jenssen, N.A., Hals, T., Jochmann, P., Haase, A., Dal Santo, X., Kerkeni, S., Doucy,O., Gürtner, A., Hetschel, S.S., Moslet, P.O., Metrikin, I., Loset, S., 2012. DYPIC-A Multi-National R&D Project on DP Technology in Ice. Dynamic Positioning Conference, Marine Technology Society, Houston Texas.
  7. Jung, K.H., Lee, M.K., Shin, S.Y., 2017. Design Considerations and Analysis of Arctic FPSO's Turret Moorisng System. The Autumn Conference of The Korea Society of Ocean Engineers, Geoje Korea.
  8. Kerkeni, S., Metrikin, I., Jochmann, P., 2013. Capability Plots of Dynamic Positioning in Ice. ASME Paper, OMAE2013-10912.
  9. Nguyen, D.T., Sorbo, A.H., Sorensen, A.J., 2009. Modelling and Control for Dynamic Positioned Vessels in Level Ice. IFAC Proceedings, 42(18), 229-236.
  10. RMRS., 2016, Rules for the Classification and Construction of Sea-Going Ships, Part I - Cassification. Russia Maritime Register of Shipping, Russia.
  11. Su, B., Kjerstad, O.K., Skjetne, R., Berg, T.E., 2013. Ice-going Capability Assessment and DP-Ice Capability Plot for a Double Acting Intervention Vessel in Level Ice. Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions.