| Summary: | 碩士 === 國立交通大學 === 運輸科技與管理學系 === 94 === The reliability for the power system of rolling stocks is determined by the effectiveness and efficiency of its maintenance strategies. Recently, the increasing failures of the Electric Multiple Unit (EMU) power subsystem of Taiwan Railway Administration (TRA) have reduced the reliability of their service as well as the confidence of passengers.
This study aims to analyze the potential of applying Reliability-Centered Maintenance (RCM) approach to inspect the system reliability of TRA rolling stocks. RCM is a systematic approach to develop a focused and cost-effective maintenance plan. Based on the quantitative reliability measure, RCM can help to explore the maintenance significant items (MSI) and distribute the maintenance resource efficiently. By applying RCM, both the system safety and expense saving can be achieved through such efficient maintenance procedure.
This study shows that Pantograph is the first-priority MSI in the power subsystem. Applying the “Replacement at Predetermined Age” maintenance policy, the replacement interval with the minimum cost can be calculated. Furthermore, the minimum cost replacement interval executed in intermediate level (I level) is considered better cost-effective than that in depot level (D level) via the analysis of repair level. Results of this study point out that RCM is applicable in analyzing the railway rolling stock maintenance planning and provide valuable reference for the maintenance management of railway system in Taiwan.
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