고속철도차량 부품의 소표본 데이터에 의한 수명의 신뢰성 평가에 관한 연구

Abstract

Abstract

Reliability-Centered Maintenance, often known as RCM, is a process to establish the safe minimum levels of maintenance. Basically, the RCM treats three principal risks from equipment failures: safety, operation, and maintenance budgets. In order to apply the RCM to any system successfully, suitable mathematical models that are capable of predicting time-to-failure and the probability of failure in the future time are essential. In general reliability models, Lives of component and system are estimated using failure time data. This paper deals with the reliability assessment of life for the main components in high-speed vehicle, KTX. Especially this work is concerned with the stochastic nature of life of component. The time-to-failure data (in here, kilometer, km) were analyzed by the Weibull statistical analysis. The final goal is to establish the mathematical model for reliability assessment. This work provides more perspectives to future research in the fields of reliability and RCM.