Criticality evaluation of spare parts using the Analytic Hierarchy Process with ratings

• Autor(a) principal: Silva, Lincon Antonio da
• Data de Publicação: 2019
• Outros Autores: Hernández, Cecilia Toledo, Brandalise, Nilson
• Tipo de documento: Artigo
• Idioma: por; eng
• Título da fonte: Sistemas & Gestão
• Texto Completo: https://www.revistasg.uff.br/sg/article/view/1500
• topic: Multicriteria Analysis; Analytic Hierarchy Process; Ratings Model; Inventory; Spare parts; Análise Multicritério; Analytic Hierarchy Process; Ratings Model; Estoque; Sobressalentes

Important spare parts should be kept in stock and their inventory properly controlled to replace worn and/or defective components with new ones and minimize downtime in various maintenance activities. However, the possession of spare parts in stock for ready availability (when necessary) may entail, in the case of expensive and rarely used parts, high inventory retention costs. In this work, an approach is presented to evaluate the criticality of spare parts using the AHP method with the use of ratings (Analytic Hierarchy Process Ratings Model). The structure of the elaborated decision hierarchy is related to the consequences caused by the failure of a spare part in the process, in case a replacement is not readily available with demand and supply attributes, segmenting the priorities by the Vital, Essential and Desirable criteria (VED). The proposed model was applied in very low turnover spare parts of an integral organization of an intensive capital company located in the South Fluminense, using the Saaty procedure for the definition of priorities through the software of free access Super Decisions, allowing the prioritization of the pieces to be stored and the establishment of differentiated management policies for each class.