Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Determination of Critical Hazard Factors in Vehicle-Mounted MEWP using Fuzzy-FMEA

퍼지-FMEA기법을 이용한 차량탑재형 고소작업대 사고의 주요 유해위험요소 위험우선순위 결정

  • Seyoon Oh (Department of Global Safety Engineering, Seoul National University of Science and Technology) ;
  • Kangdon Lee (Samsung EHS Strategy Institute) ;
  • Jaeho ,Shin (School of Mechanical and Automotive Engineering, Kyungil University) ;
  • Jae-Yong Lim (Department of Safety Engineering, Seoul National University of Science and Technology)
  • 오세윤 (서울과학기술대학교 글로벌안전공학과) ;
  • 이강돈 (삼성EHS전략연구소 안전팀) ;
  • 신재호 (경일대학교 기계자동차학부) ;
  • 임재용 (서울과학기술대학교 안전공학과)
  • Received : 2022.10.13
  • Accepted : 2022.11.24
  • Published : 2023.02.28
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Abstract

In this study, we aimed to identify the important hazard factors and determine their criticality in causing serious accidents in vehicle-mounted mobile elevated work platforms (MEWPs). Fuzzy failure modes and effects analysis (FMEA)was performed using accident data and a survey of experts. To determine the hazard factors, the accident data for the last 10 years were used and a questionnaire survey was designed. The questionnaire survey was sent to four experts in the field of occupational safety to determine the severity, occurrence, and detectability of serious accidents in MEWPs. Furthermore, objective RPN scores and risk priority were obtained using fuzzy FMEA. Finally, the criticality of hazard factors in descending order was found to be overloading, non-installation or defective installation of outriggers, breakage due to wire rope aging, and illegal remodeling of vehicle structures. The results were verified by comparing the occurrence data of serious disasters.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2021R1F1A1059207).

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