Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on Evaluation of Optimal Replacement Period by Reliability Prediction for the Door Control Relay of EMU

전동차 출입문제어 계전기의 신뢰도예측을 통한 적정 교체주기 연구

  • Han, Jaehyun (Seoul National University of Science and Technology, Graduate school of Railway) ;
  • Kim, JongWoon ;
  • Koo, JeongSeo (Seoul National University of Science and Technology, Graduate school of Railway)
  • 한재현 (서울과학기술대학교 철도전문대학원) ;
  • 김종운 (한국철도기술연구원 시스템안전연구단) ;
  • 구정서 (서울과학기술대학교 철도전문대학원)
  • Received : 2014.01.14
  • Accepted : 2014.02.20
  • Published : 2014.07.31
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Abstract

In this paper, we want to know the optimal replacement cycle(time) for this study was performed. The optimal preventive replacement age can be fond by finding the value of time that minimizes the cost function(model of Barlow and Jardine). In addition, The reliability of the relay according to the service environment were studied. The use of the exchange relay period is longer, and maintenance cost rate(per hour) may increase, and also the reliability may cause a decline. In addition, considering the preventive maintenance and purchase order, a representative relay(RAX-L440-A type) life was calculated.

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References

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