Abstract
Metro door system (MDS) is one of the most important and fault-prone parts of metro train. Reliability-centered maintenance (RCM) is a systematic engineering process for determining the preventive maintenance requirements of equipment and optimizing the maintenance system. This paper is motivated to apply RCM to the maintenance of metro door system. Firstly, the subsystems and components of MDS are introduced. Then a fuzzy FMECA method is proposed to define the hazard degree of 10 failure modes from 5 components with high failure rate to conduct reliability analysis. Finally, reliability-centered maintenance strategy is made after maintenance mode decision and calculation of maintenance interval cycle, which provides theoretical basis to the maintenance of the metro train.
Highlights
Metro transportation has the advantages of large transportation capacity, fast running speed, good timeliness, high safety, space saving, energy saving and air pollution reduction [1]
The Reliability-centered maintenance (RCM) analysis includes the following steps, as shown in Figure 1: This paper aims to apply the RCM method to the Metro Door Systems (MDS) to develop a maintenance strategy, making it scientific and reliable
In this paper, RCM analysis is applied in the determination of the maintenance strategy for the MDS
Summary
Metro transportation has the advantages of large transportation capacity, fast running speed, good timeliness, high safety, space saving, energy saving and air pollution reduction [1]. It has become one of the main means of transportation for large and medium-sized cities, and is playing an important role in alleviating urban traffic congestion [2]. The development of proper maintenance strategies for metro door systems is of great significance for the smooth operation of trains. The RCM methodology provides a practical and structured approach for arriving at a satisfactory maintenance strategy for each component of a given system.
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