Heuristic Method for RAM Design of Multifunctional System

다기능 시스템의 RAM 목표값 설정을 위한 휴리스틱 기법

  • Received : 2011.05.18
  • Accepted : 2011.12.15
  • Published : 2012.02.01


When designing a multifunctional system consisting of many components performing many functions or missions, it is important to determine the reliability, availability, and maintainability (RAM) of the system and components, and we consider system availability to be the optimization criterion. For given intervals of mean time between failure (MTBF) and mean time to repair (MTTR) of the components, we want to determine the values of MTBF and MTTR for all components that satisfy the target availability. A heuristic method is proposed for finding near-optimal solutions through simulation. We also study numerical examples to check effects of model parameters on the optimal solutions.


RAM;MTBF;MTTR;Rolling Stock


Supported by : 한국연구재단


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