Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Modification of Local Ice Load Prediction Formula Based on IBRV ARAON's Arctic Field Data

쇄빙연구선 ARAON호의 북극해 실측 데이터에 기초한 국부 빙하중 추정식의 수정

  • Cho, Sungrok (Department of Ocean Engineering, Korea Maritime and Ocean University) ;
  • Choi, Kyungsik (Department of Ocean Engineering, Korea Maritime and Ocean University)
  • Received : 2019.02.02
  • Accepted : 2019.03.29
  • Published : 2019.04.30
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Abstract

This paper focuses on a newly designed ice load formula based on the ARAON's 2016 Arctic field data in order to improve a structural design against ice loads. The strain gage signals from ARAON's hull plating were converted to the local ice pressure upon the hull plating using the influence coefficient matrix and finite element analysis. First, a traditional pressure-area relationship is derived by applying probabilistic approaches to handle the strains measured onboard the ARAON. Then, the local ice load prediction formula is re-analyzed after reviewing the ARAON's additional field data to consider information about the ship speed and thickness of the sea ice. It is shown that the newly developed pressure-area relationship well reflects the influence of other design parameters such as the ship speed and ice thickness in the prediction of local ice loads on Arctic vessels.

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References

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