쇄빙연구선 ARAON호의 북극해 실측 데이터에 기초한 국부 빙하중 추정식의 수정
Modification of Local Ice Load Prediction Formula Based on IBRV ARAON’s Arctic Field Data
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초록
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.
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.
참고문헌 (10)
- 최경식, "쇄빙상선의 빙하중 추정식 고찰", 대한조선학회 논문집, 45(2), pp.175~185 (2008), 대한조선학회
- Frederking, R., "Determination of Local Ice Pressures from Ship Transits in Ice", Proceedings of 13th International Society of Offshore and Polar Engineering Conference (2003)
- Frederking, R., "Ice Pressure Variations During Indentation", Proceedings of International Association of Hydraulic Research Symposium on Ice, pp.307~314 (2004)
- Jeon, M. C., "Estimation of Local Ice Load by Analyzing Shear Strain Data for the IBRV ARAON", Proceedings of 24th Symposium on Port and Ocean Engineering under Arctic Conditions, pp.148~ (2017)
- Jordaan, I. J., "Probabilistic Analysis of Local Ice Pressures", Journal of Offshore Mechanics and Arctic Engineering, 115(1), pp.83~89 (1993)
- Kim, J. M., "Analysis of the IBRV ARAON’s Ice Field Data and Development of a Numerical Code for Ice Load Estimation", Master, pp.2016
- 이탁기, "북극해 계측자료에 기초한 아라온호의 국부 빙압력 계산 연구", 한국해양공학회지, 27(5), pp.88~92 (2013), 한국해양공학회
- Masterson, D. M., "Local Contact Pressures in Ship", Ice and Structure, Cold Regions Science and Technology, pp.1993, 21(2)[DOI]
- Park, I., "Conversion of Pixel-based Ice Thickness to Physical Unit for Image of Broken Ice Patch", Proceedings of the Society of CAD, 2014, 523~528
- Taylor, R. S., "Conversion of Pixel-based Ice Thickness to Physical Unit for Image of Broken Ice Patch", Journal of Offshore Mechanics and Arctic Engineering, 132(3), pp.031502~ (2010)[DOI]