Proposta de um modelo multicritério para determinação da criticidade na gestão da manutenção industrial

Abstract

This work aims to propose a model for determining the criticality in industrial processes, using the multi-criteria analysis. Initially it is proposed a priority rating of the most critical elements of an industrial system and later, an ordering of the elements within their respective classes of criticality, thus obtaining the criticality of each. The model is based on outranking methods ELECTRE TRI and PROMETHEE II. An application of the model is carried out in this work, where the criteria are considered: security; environment; quality; operational impact; economic impacts; mean time between failures and mean time to repair. As a result, are presented comparisons of the proposed model with the traditional methods of determination of criticality, trying to observe subjective aspects and objectives jointly in order to provide a clear and systemic view of the problems implicit in determining the criticality in industrial systems. It was concluded that the use of multi-criteria analysis to determine criticality enables greater depth in the assessment and is a tool that helps in the management of maintenance and increased reliability for production systems.