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

The Society of Naval Architects of Korea (대한조선학회)
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Full Scale Measurement Data Analysis of Large Container Carrier with Hydroelastic Response, Part II - Fatigue Damage Estimation

대형 컨테이너 선박의 유탄성 실선 계측 데이터 분석 Part II - 피로 손상도 추정

  • Kim, Byounghoon (Department of Naval Architecture and Ocean Engineering, INHA University) ;
  • Choi, Byungki (Marine Structure Research Department, Hyundai Heavy Industries, Co., Ltd.) ;
  • Park, Junseok (Marine Structure Research Department, Hyundai Heavy Industries, Co., Ltd.) ;
  • Park, Sunggun (DSME R&D Institute, Daewoo Shipbuilding and Marine Engineering, Co., Ltd.) ;
  • Ki, Hyeokgeun (DSME R&D Institute, Daewoo Shipbuilding and Marine Engineering, Co., Ltd.) ;
  • Kim, Yooil (Department of Naval Architecture and Ocean Engineering, INHA University)
  • 김병훈 (인하대학교 공과대학 조선해양공학과) ;
  • 최병기 (현대중공업 선박구조연구실) ;
  • 박준석 (현대중공업 선박구조연구실) ;
  • 박성건 (대우조선해양 중앙연구원) ;
  • 기혁근 (대우조선해양 중앙연구원) ;
  • 김유일 (인하대학교 공과대학 조선해양공학과)
  • Received : 2017.09.28
  • Accepted : 2017.11.27
  • Published : 2018.02.20
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Abstract

Concerns are emerging in marine industry on the additional fatigue damages induced by hydroelasticity, and large container carriers, among others, are considered to be susceptible to this hydroelastic response due to its large size, deck openings and high speed. This study focuses on the fatigue damage estimation of 9,400TEU container carrier based on the full scale measurement data via long-base strain gage installed on the ship. Some correlation analyses have been also done to check whether there was significant torsional response during the voyage. Direct cycle counting method was used to derive stress histogram and the long-term fatigue damage was estimated based upon that analyzed data. It turned out that the fatigue damage of this particular ship during the measurement period increased by more than 60% due to the hydroelastic response of the hull, and main contribution is considered to come from vertical bending mode.

Keywords

References

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