A Study of Condition Based Preventive Maintenance Model for Repairable Multi Stage Deteriorating system

This paper presents a preventive maintenance model considering inspection for condition based maintenance. Preventive maintenance is a prevention of system breakdowns to failures with schedule of planned maintenance actions. This paper discusses the inspection of product item condition for product deterioration. We assume that there could be three types of maintenance actions after the inspection: minimal repair (as bad as old), imperfect repair (between of minimal and major repair) and perfect or major repair (as good as new). The purpose of this study is to present a condition based preventive maintenance model for the lifespan of sold product that could maximize the system availability by using Markov process. The presented results make it clear to verify that comparison of closed form analytical result and RELEX reliability commercial software result.