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http://dx.doi.org/10.3744/SNAK.2021.58.5.330

Enhanced Influence Coefficient Matrix for Estimation of Local Ice Load on the IBRV ARAON  

Cho, Sungrok (Department of Ocean Engineering, Korea Maritime and Ocean University)
Choi, Kyungsik (Department of Ocean Engineering, Korea Maritime and Ocean University)
Son, Beomsik (Department of Ocean Engineering, Korea Maritime and Ocean University)
Jeong, Seong-Yeob (Korea Research Institute of Ships and Ocean Engineering)
Ha, Jung-Seok (Korea Research Institute of Ships and Ocean Engineering)
Publication Information
Journal of the Society of Naval Architects of Korea / v.58, no.5, 2021 , pp. 330-338 More about this Journal
Abstract
This paper focuses on the improvement of the influence coefficient matrix method for estimation of local ice load on the icebreaking research vessel ARAON. The influence coefficient matrix relates ice pressure on the hull plate to the measured/calculated hull strain/stress. Conventionally von Mises equivalent stresses representing hull stresses and ice pressure acting on the hull plate are utilized to assemble the influence coefficient matrix. Because of the three dimensional features of the ship-ice collision process, an enhanced method to assemble the influence coefficient matrix is derived considering ice loads in the X, Y, and Z direction simultaneously. Furthermore the location of ice loads acting on hull-plate may fall outside the measuring sensor area, and the enhanced influence coefficient matrix is modified to reduce the difference between the actual and the estimated ice loads by expanding the domain outward from the sensor area. The developed method for enhanced influence coefficient matrix is applied to IBRV ARAON during the 2019 Antarctic ice field test and the local ice loads in three directions are efficiently calculated compared to those by a conventional method.
Keywords
Local ice load; Influence coefficient matrix; IBRV ARAON;
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Times Cited By KSCI : 1  (Citation Analysis)
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