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북극해 운항 중 계측된 빙하중에 대한 분석 연구

A Study on Analysis of Ice Load Measured during the Voyage in the Arctic Sea

  • 이탁기 (경상대학교 해양시스템공학과, 해양산업연구소) ;
  • 김태욱 (경상대학교 대학원 해양시스템공학과) ;
  • 임채환 (한국기계연구원 시스템신뢰성연구실) ;
  • 김흥섭 (한국기계연구원 시스템신뢰성연구실)
  • Lee, Tak-Kee (Department of Ocean System Engineering, Gyeongsang National University, Institute of Marine Industry) ;
  • Kim, Tae-Wook (Department of Ocean System Engineering, Graduate School, Gyeongsang National University) ;
  • Rim, Chae Whan (Korea Institute of Machinery and Materials) ;
  • Kim, Heung-Sub (Korea Institute of Machinery and Materials)
  • 투고 : 2013.09.30
  • 심사 : 2014.01.20
  • 발행 : 2014.04.20

초록

The icebreaking research vessel, ARAON had her second ice trial in the Arctic Sea from 16th July to 12th August 2010. During the voyage, the local ice loads acting on the bow of port side were measured from 14 strain gauges. The measurements were also carried out in ice waters with various ice concentration ratio as well as the icebreaking performance tests. In this study, the ice loads measured during the 'general' operation in ice waters were analyzed. As a first step, the relationship between the location of strain gauges and the ice loads were investigated, and then the possibility for observation of higher ice loads was estimated based on the probability density function. The relationship between the ship speed and the ice load was also investigated. 718 peak stresses data higher than 20 MPa obtained from strain gauges array attached in longitudinally and vertically was analyzed. In general, the ice load increases as the ship speed increases in the low ship speed range, and ice load decreases as the ship speed is greater than a certain speed.

키워드

참고문헌

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