Degrading systems availability analysis: analytical semi-Markov approach

This paper deals with modeling and analysis of complex mechanical systems that deteriorate age. As age, the questions on their availability reliability start to surface. The system is believed suffer from internal stochastic degradation mechanism described as a gradual continuous process performance deterioration. Therefore, it becomes difficult for maintenance engineer model such system. Semi-Markov approach proposed analyze systems. It involves constructing states corresponding functionality status kernel matrix between states. construction transition takes failure rate repair into account. Once steady-state probability embedded Markov chain computed, one can compute solution finally, availability. System models based perfect without opportunistic have been developed benefits are quantified in terms increased methodology demonstrated two-stage reciprocating air compressor intercooler between, series configuration.