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韓國海洋工學會誌 = Journal of ocean engineering and technology   v.32 no.3, 2018년, pp.177 - 183   KCI
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유빙 하중을 받는 계류된 반잠수식 시추선의 응답해석
Numerical Simulation on the Response of Moored Semi-submersible Under Ice Load

김정환   (인하대학교 조선해양공학과  ); 김유일   (인하대학교 조선해양공학과  );
  • 초록

    This study simulated ice load and the motion response of a moored semi-submersible rig in pack-ice conditions using a finite element method. Ice flows of random size and shape were modeled, and interactions for ice-sea, ice-structure, ice-ice were simulated using a simplified method. Parameters for the simplified method such as drag force coefficient and the pressure-penetration relation were obtained based on the result of detailed analysis using the coupled Eulerian-Lagrangian method. The mooring lines were modeled by spring elements based on their stiffness. As a result of the simulation over 1,400 seconds, the force and motion response of the rig were obtained and validated using discrete elements and compared with the results found by the Krylov State Research Centre.


  • 주제어

    빙하중 및 거동  . 반잠수식 시추선  . 유빙조건  . 유한요소법  . 항력 계수  . 압력-침투 관계  .

  • 이미지/표/수식 (14)

    논문관련 이미지

  • 참고문헌 (13)

    1. Metrikin, I., Gurtner, A., Bonnemaire, B., Tan, X., Fredriksen, A., Sapelnikov, D., 2015. SIBIS : A Numerical Environment for Simulating Offshore Operations in Discontinuous Ice. Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions(POAC), Trondheim, Norway. 
    2. Kim, M., Lee, S., Lee, W., Wang, J., 2013. Numerical and Experimental Investigation of the Resistance Performance of an Icebreaking Cargo Vessel in Pack ice Conditions. International Journal of Naval Architecture and Ocean Engineering, 5(1), 116-131. 
    3. Wang, J., Derradji-Aouat, A., 2011. Numerical Assessment for Stationary Structure (Kulluk) in Moving Broken Ice. Proceedings of the international Conferece on Port and Ocean Engineering Under Arctic Conditions, POAC11-172. 
    4. Millan, J., Wang, J., 2011. Ice Force Modeling for DP Control Systems. Proceedings of the Dynamic Positioning Conference 2011, Houston, Texas, USA. 
    5. Sayed, M., 1997. Discrete and Lattice Models of Floating Ice Covers. International Offshore and Polar Engineering Conference (ISOPE), Honolulu, Hawaii, USA, 428-433. 
    6. Cundall, P., Strack, O., 1978. The Distinct Element Methods as a Tool for Research in Granular Media. Part I, Report to NSF. 
    7. Alawneh, S., 2014. Hyper-Real-Time Ice Simulation and Modeling Using GPGPU(Ph D. Thesis). Memorial University of Newfoundland. 
    8. Hopkins, M.A., Shen, H.H., 2001. Simulation of Pancake-ice Dynamics in a Wave Field. Annals of Glaciology, 33, 355-360. 
    9. Newman, J., 1977. Marine Hydrodynamics. MIT Press. 
    10. Lindseth, S., 2013. Splitting as a Load Releasing Mechanism for a Floater in Ice(Master thesis). Norwegian University of Science and Technology. 
    11. Karna T., 1993. Finite Ice Failure Depth in Penetration of a Vertical Indentor into an Ice Edge. Anals of Glaciology, 19, 114-120. 
    12. Karulin, E.B., Karulina, M.M., 2013. Determination of Loads on Mooring System During the Semisubmersible Interaction with Ice. International Offshore and Polar Engineering Conference (ISOPE2013), 1288-1294. 
    13. Sun, S., Shen, H., 2012. Simulation of Pancake Ice Load in a Circular Cylinder in a Wave and Current Field. Cold Regions Science and Technology 78, 31-39. 

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