The economic lot scheduling problem under performance decay

Autor(es)

Alle‚ A. ; Pinto‚ J.M. ; Papageorgiou‚ L.G.

• Tipo de documento: Artigo Científico
• Fonte: Industrial & Engineering Chemistry Research; v. 43, n. 20, p. 6463-6475, 2004.

Resumo

The aim of this work is to propose a mathematical programming model for the economic lot scheduling problem (ELSP) with performance decay. First, the problem is formulated as a mixed integer nonlinear program (MINLP), which is found to be nonconvex. The model is then transformed into a mixed integer linear programming (MILP) model through the discretization of the cycle time. This model is tested in a wide set of randomly generated problems with various degrees of difficulty. The results show that the MILP model can achieve the optimum within satisfactory CPU times. An illustrative example demonstrates the applicability of the MILP model and its potential benefits in comparison with a hierarchical approach. (AU)

• Processo FAPESP: 98/14384-3 - Integração de processos químicos contínuos em tempo real
• Beneficiário: Rubens Maciel Filho
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 99/02657-8 - Tecnicas de programacao matematica e metaheuristicas para o scheduling de plantas quimicas continuas.
• Beneficiário: Alessandro Alle
• Modalidade de apoio: Bolsas no Brasil - Doutorado