[논문]필드데이터에 의한 철도차량 신호장치 구성품의 최적 교체주기 결정에 관한 연구

박병노; 김경화; 김재훈

doi:10.14346/jkosos.2023.38.2.104

필드데이터에 의한 철도차량 신호장치 구성품의 최적 교체주기 결정에 관한 연구
A Study on Determining the Optimal Replacement Interval of the Rolling Stock Signal System Component based on the Field Data 원문보기

한국안전학회지 = Journal of the Korean Society of Safety, v.38 no.2, 2023년, pp.104 - 111

박병노 (서울과학기술대학교 철도안전공학과) , 김경화 (서울과학기술대학교 전기정보공학과) , 김재훈 (한국철도기술연구원)

Abstract ▼ AI-Helper

Rolling stock maintenance, which focuses on preventive maintenance, is typically implemented considering the potential harm that may be inflicted to passengers in the event of failure. The cost of preventive maintenance throughout the life cycle of a rolling stock is 60%-75% of the initial purchase cost. Therefore, ensuring stability and reducing maintenance costs are essential in terms of economy. In particular, private railroad operators must reduce government support budget by effectively utilizing railroad resources and reducing maintenance costs. Accordingly, this study analyzes the reliability characteristics of components using field data. Moreover, it resolves the problem of determining an economical replacement interval considering the timing of scrapping railroad vehicles. The procedure for determining the optimal replacement interval involves five steps. According to the decision model, the optimal replacement interval for the onboard signal device components of the "A" line train is calculated using field data, such as failure data, preventive maintenance cost, and failure maintenance cost. The field data analysis indicates that the mileage meter is 9 years, which is less than the designed durability of 15 years. Furthermore, a life cycle in which the phase signal has few failures is found to be the same as the actual durability of 15 years.

주제어

표/그림 (15)

그림 Fig. 1. Reliability analysis procedure.
그림 Fig. 2. Procedure for determining the optimal replacement cycle.
표 Table 1. Rolling stock LBS classification system
표 Table 2. Failure classification
그림 Fig. 3. Schematic of rolling stock signal system.
그림 Fig. 4. Logistic failure distribution of CBK board.
그림 Fig. 5. Service failure distribution of CBK board.
표 Table 3. LBS rolling stock signal devices
표 Table 4. Shape and scale parameters of CBK board
그림 Fig. 6. Analysis of cost calculation by year.
표 Table 5. CBK board reliability indicators (Unit: Hour)
표 Table 6. Corrective maintenance cost information
표 Table 7. Preventive maintenance cost information
표 Table 8. Loss of Service Cost Calculation Information
표 Table 9. Board optimal replacement cycle cost calculation result (Unit: Thousand Won)

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