Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Calculation of Fatigue Life of Bow Frame of ARAON Considering Navigating in Ice and Open Waters

빙 및 일반해역 운항을 고려한 아라온호 선수프레임의 피로수명 계산

  • An, Woo-Seong (Dept. of Ocean System Eng., Graduate School, Gyeongsang National University) ;
  • Lee, Tak-Kee (Dept. of Naval Archi. & Ocean Eng., Gyeongsang National University, Institute of Marine Industry) ;
  • Hwang, Mi-Ran (Dept. of Civil Eng., Zentech Eng. Corp.)
  • 안우성 (국립 경상대학교 대학원 해양시스템공학과) ;
  • 이탁기 (국립 경상대학교 해양과학대학 조선해양공학과, 해양산업연구소) ;
  • 황미란 (젠텍 엔지니어링(주), 토목사업부)
  • Received : 2018.02.27
  • Accepted : 2018.10.18
  • Published : 2018.12.31
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Abstract

Ice-going ships such as icebreakers, icebreaking tankers, and icebreaking LNG carriers are subjected to wave loads in open water and ice loads in ice-covered water. In terms of the ship's structural design, the local ice load is important. The fatigue failure due to repeated ice loads is also important. ISO 19906 specifies the assessment of the fatigue limit for a polar offshore structures. In addition, Lloyd's Register refers to fatigue damage based on ShipRight FDA ICE. In ShipRight FDA ICE, the fatigue damage indices due to wave and ice loads are simply presented as 0.5 for each load. It also states that the sum of the two fatigue damage indices should not exceed one. This study calculated and analyzed the fatigue damage index and fatigue life considering ARAON's voyage schedules and the assumed Antarctic voyage based on data measured during the Arctic voyage of ARAON in 2010.

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References

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