A Maintenance Model Based on Phase Type Distribution for Equipment under Two Types of Failures

摘要

A maintenance model is put forward for equipment,which is subjected to internal and external failures.In the model,two maintenance policies-perfect minimal repair and replacement are considered.The operational time has a phase type distribution(PH distribution).Failures' arrival follows a Markovian Arrival Process(MAP).Some failures require the replacement of the system,and others minimal repairs.The performance measures-the mean number of minimal repairs and replacements are analyzed and calculated.