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Reliability Prediction of High Performance Mooring Platform in Development Stage Using Safety Integrity Level and MTTFd

안전무결성 수준 및 MTTFd를 활용한 개발단계의 고성능 지상체 신뢰도 예측 방안

  • Min-Young Lee (Defense CBM+ Agile Team, Korea Institute of Science and Technology Information) ;
  • Sang-Boo Kim (Dept. of Industrial & Systems Engineering, Changwon National University) ;
  • In-Hwa Bae (Dept. of Industrial & Systems Engineering, Changwon National University) ;
  • So-Yeon Kang (Dept. of Industrial & Systems Engineering, Changwon National University) ;
  • Woo-Yeong Kwak (Dept. of Industrial & Systems Engineering, Changwon National University) ;
  • Sung-Gun Lee (HanGIS Co., Ltd.) ;
  • Keuk-Ki Oh (HanGIS Co., Ltd.) ;
  • Dae-Rim Choi (HanGIS Co., Ltd.)
  • 이민영 (한국과학기술정보연구원 국방CBMPlus애자일팀) ;
  • 김상부 (창원대학교 산업시스템공학과) ;
  • 배인화 (창원대학교 산업시스템공학과) ;
  • 강소연 (창원대학교 산업시스템공학과) ;
  • 곽우영 (창원대학교 산업시스템공학과) ;
  • 이성근 ((주)한지아이에스) ;
  • 오극기 ((주)한지아이에스) ;
  • 최대림 ((주)한지아이에스)
  • Received : 2024.05.12
  • Accepted : 2024.06.14
  • Published : 2024.06.30

Abstract

System reliability prediction in the development stage is increasingly crucial to reliability growth management to satisfy its target reliability, since modern system usually takes a form of complex composition and various complicated functions. In most cases of development stage, however, the information available for system reliability prediction is very limited, making it difficult to predict system reliability more precisely as in the production and operating stages. In this study, a system reliability prediction process is considered when the reliability-related information such as SIL (Safety Integrity Level) and MTTFd (Mean Time to Dangerous Failure) is available in the development stage. It is suggested that when the SIL or MTTFd of a system component is known and the field operational data of similar system is given, the reliability prediction could be performed using the scaling factor for the SIL or MTTFd value of the component based on the similar system's field operational data analysis. Predicting a system reliability is then adjusted with the conversion factor reflecting the temperature condition of the environment in which the system actually operates. Finally, the case of applying the proposed system reliability prediction process to a high performance mooring platform is dealt with.

Keywords

Acknowledgement

이 연구는 대한민국 정부 (산업통상자원부, 방위사업청 및 과학기술정보통신부) 재원으로 민군협력진흥원에서 수행하는 민군기술협력(R&D) 사업의 연구비 지원으로 수행되었습니다. (과제번호 : 22-SN-GU-12, 과제고유번호 : 9991008691)

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