한국안전학회지 (Journal of the Korean Society of Safety)

  • 제35권1호
  • /
  • Pages.18-24
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  • 2020
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  • 1738-3803(pISSN)
  • /
  • 2383-9953(eISSN)
한국안전학회 (The Korean Society of Safety)
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전동차 전기식 도어시스템의 구성부품에 대한 발열 특성분석

Analysis of Thermal Characteristics for Components of Electrical Door System in Electric Multiple Unit

  • Lee, Bon Hyung (Daejeon Metropolitan Rapid Transit Corporation) ;
  • Kim, Doo-Hyun (Department of Safety Engineering, Chungbuk National University) ;
  • Kim, Sung-Chul (Department of Safety Engineering, Chungbuk National University)
  • 투고 : 2019.11.29
  • 심사 : 2020.02.10
  • 발행 : 2020.02.29
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초록

This research conducted an the failure analysis was performed based on the failure and operation data for Seven years using the Reliability, Availability, Maintainability, and Safety(RAMS) constructed at the operation stage after the opening of the D urban railway. therefore, the risk priority was selected for failure frequency component within the door system that showed high failure. Finally, the goal was to suggest ways to improve the door system. For this purpose, the analysis of thermal characteristics of failed components such as Door Control Unit(DCU) in the door system based on the Seven-year failure analysis data of RAMS was performed. These results were applied to the main component exchange cycle of the door unit, the mean time between failure(MTBF) and mean kilometer between failure(MKBF) values of RAMS increased by 26% in 2017-2018 when the improvement measures were taken, and the MTBF value of DCU was 300,000 hours, which was a 57% improvement in reliability. The results of this thesis identify potential enhancements in reliability and improvements in maintenance of the door system that, if implemented, would contribute to train safety and reduce instances of failure in the future.

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참고문헌

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