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정상운항 상태에서 쇄빙선박에 작용하는 설계 빙하중 추정

Prediction of Design Ice Load on Icebreaking Vessels under Normal Operating Conditions

  • 최경식 (한국해양대학교 해양공학과) ;
  • 정성엽 (한국해양연구원 해양시스템안전연구소) ;
  • 남종호 (한국해양대학교 조선해양시스템공학부)
  • Choi, Kyung-Sik (Dept. of Ocean Engineering, Korea Maritime University) ;
  • Jeong, Seong-Yeob (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Nam, Jong-Ho (Div. of Naval Architecture & Ocean Systems Engineering, Korea Maritime University)
  • 발행 : 2009.12.20

초록

Ice load is one of the important design parameters for the construction of icebreaking vessels. In this paper, the design ice load prediction for the icebreaking vessels under normal operating condition in ice-covered sea is discussed. The ice loads under normal operating condition are expected from sea trials in moderate ice conditions. In this sense the extreme ice loads during heavy ramming or accidental collision are not considered. Current study describes the global ice load on the hull of the icebreaking vessels. Available ice load data from full-scale sea trials are collected and analyzed according to various ship-ice interaction parameters including displacement, stem angle, speed of a ship and flexural strength and thickness of sea ice. The ice load prediction formula is compared with the collected full-scale sea trials data and it shows a good agreement.

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참고문헌

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