A New Fuzzy Multi Criteria Model for Maintenance Policy

This paper aims to evaluate different maintenance strategies (such as corrective maintenance, time- based preventive maintenance, condition-based maintenance and predictive maintenance) for different equipment. A new fuzzy multi criteria model is introduced and it is used for the optimization decision making of the complex system maintenance strategy with five Criteria. In this paper maintenance strategies has been modeled with consideration of four fuzzy parameters in the figure of Multi Criteria Decision Making. One of the Criteria elaborates minimization of total Completion time. The second Criteria has been considered in this model due to describe minimize cost. The other Criteria are in regards to minimization of risk and working man and maximize retrieval parts.

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