대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제56권3호
  • /
  • Pages.217-230
  • /
  • 2019
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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[논문철회]유빙 하중을 받는 내빙 선박의 피로손상도 추정 Part I - 직접 해석법

[Retracted]Estimation of the Fatigue Damage for an Ice-going Vessel under Broken Ice Condition Part I - Direct Approach

  • 김정환 (인하대학교 공과대학 조선해양공학과) ;
  • 김유일 (인하대학교 공과대학 조선해양공학과)
  • Kim, Jeong-Hwan (Department of Naval Architecture and Ocean Engineering, College of Engineering, INHA University) ;
  • Kim, Yooil (Department of Naval Architecture and Ocean Engineering, College of Engineering, INHA University)
  • 투고 : 2018.10.02
  • 심사 : 2019.01.03
  • 발행 : 2019.06.20
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초록

In this study, a fatigue damage estimation for an ice-going vessel navigating through broken ice fields was carried out. A numerical model to simulate the interaction between ice and structure developed using the finite element method was introduced. Time series of stresses calculated by the proposed model and the corresponding fatigue analysis results are presented. The numerical model enables the long time analysis through an efficient interaction model, the application of the periodic media analysis and the convolution integral, and it allows the stress time history to be extracted directly using the finite element method. To describe the probability distribution of stress amplitudes, the 2-parameter Weibull model was applied to the calculated stress time history, and the fatigue damage was calculated using the Palmgren-Miner rule. Finally, the fatigue damage considering the ice conditions of the Baltic Sea was calculated using the proposed method and LR method, and the results were compared to each other.

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참고문헌

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