Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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A Study on Calculation of Local Ice Pressures for ARAON Based on Data Measured at Arctic Sea

북극해 계측자료에 기초한 아라온호의 국부 빙압력 계산 연구

  • Lee, Tak-Kee (Department of Naval Archi. & Ocean Eng., Gyeongsang National University, Institute of Marine Industry) ;
  • Kim, Tae-Wook (Department of Naval Archi. & Ocean Eng., Graduate School, Gyeongsang National University) ;
  • Rim, Chae Whan (Korea Institute of Machinery and Materials) ;
  • Kim, Sungchan (Department of Naval Archi. & Ocean Eng., Inha Technical College)
  • 이탁기 (경상대학교 해양과학대학 조선해양공학과, 해양산업연구소) ;
  • 김태욱 (경상대학교 대학원, 조선해양공학과) ;
  • 임채환 (한국기계연구원 기계시스템안전연구본부 시스템신뢰성연구실) ;
  • 김성찬 (인하공업전문대학 수송기계공학부 조선해양과)
  • Received : 2013.09.23
  • Accepted : 2013.10.10
  • Published : 2013.10.31
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Abstract

The icebreaking research vessel (IBRV) ARAON had her second ice trial in the Arctic Ocean in the summer season of 2010. During the voyage, the local ice loads acting on the bow of the port side were measured using 14 strain gauges. These measurements were carried out in three icebreaking performance tests. To convert the measured strains into the local ice pressures, a finite element model of the instrumented area was developed. The influence coefficient method (ICM), which uses the influence coefficient from the finite element model, and the direct method, which uses the measured strain, were selected as the conversion methods. As a result, the maximum measured pressure was 1.236MPa, and the average difference between ICM and the direct method was about 5% for an area of $0.2m^2$. The pressure-area relationship of the measurement falls below the range of the existing pressure-area curve, which is due to the low ice strength of melted ice in the summer.

Keywords

References

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