Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Safety of Industrial Overhead Doors : A Review of Maintenance and Parallel Safety Devices

산업용 오버헤드 도어의 사고 예방 : 유지관리 및 병렬구조 안전장치를 중심으로

  • Bok Ki Kim (Department of Safety, Environment, Technology and Convergence, Seoul National University of Science and Technology) ;
  • Jaewook Jeong (Department of Safety Engineering Seoul National University of science and Technology)
  • 김복기 (서울과학기술대학교 안전환경기술융합학과) ;
  • 정재욱 (서울과학기술대학교 안전공학과)
  • Received : 2023.12.05
  • Accepted : 2024.01.03
  • Published : 2024.02.29
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Abstract

This study analyzes the impact of regular preventive maintenance (PM) on reducing the failure rate and occurrence of falling accidents of industrial overhead doors. A reliable safety device model with an additional safety device, which is installed to replace a defective one, is proposed. The research methodology involves collecting breakdown and falling accident records, comparing and analyzing data before and after regular PM implementation, and experimenting with two types of retrofittable safety devices. Key findings are as follows. 1. Regular PM implementation significantly reduces the failure rate of old overhead doors. 2. A parallel structured model with two alternative safety devices can minimize falling accident risks. The study's contributions include the following. 1. The positive impact of PM on extending overhead door lifespan is quantified. 2. A general safety device model that can be retrofitted and used as replacement with a fail-safe function is proposed.

Keywords

Acknowledgement

This research was financially supported by the Ministry of Trade, Industry and Energy (MOTIE) and Korea Institute for Advancement of Technology (KIAT) through the International Cooperative R&D program (P0024779).

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