A Repairable System Supported by Two Spare Units and Serviced by Two Types of Repairers

  title={A Repairable System Supported by Two Spare Units and Serviced by Two Types of Repairers},
  author={Vahid Andalib and Jyotirmoy Sarkar},
We study a one-unit repairable system, supported by two identical spare units on cold standby, and serviced by two types of repairers. The model applies, for instance, to ANSI (American National Standard Institute) centrifugal pumps in a chemical plant. The failed unit undergoes repair either by an in-house repairer within a random or deterministic patience time, or else by a visiting expert repairer. The expert repairs one or all failed units before leaving, and does so faster but at a higher… 

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