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Revista EIA
versão impressa ISSN 1794-1237
Resumo
ARANGO, Martín Dario; CANO, José Alejandro e ALVAREZ, Karla Cristina. CLOSED MODELS OF MRP SYSTEMS CONSIDERING UNCERTAINTIES. Rev.EIA.Esc.Ing.Antioq [online]. 2012, n.18, pp.61-76. ISSN 1794-1237.
In this paper, we present four models of uncertainty in the MRP closed systems in the production components, such as: manufacturing capacity of each product, delivery time and inventory availability. These parameters are processed by the fuzzy logic by modeling an MRP closed system deterministic. Therefore, three models are initially MRP closed system, where each independently consider uncertainty in capacity, delivery time and inventory availability. Also, we present a fourth model of MRP closed system jointly analyzes the uncertainty in the three parameters mentioned above. Each of these models is corroborated with information from a company in the Colombian electricity area, evaluating the total cost of the production plan, inventory levels, service level and computational complexity.
Palavras-chave : MRP; closed MRP; fuzzy logic; diffuse mathematical programming; production plan; uncertainty.