Relaxação Lagrangiana Aplicada ao Problema de Dimensionamento de Lotes em Máquinas Paralelas: Limitantes Inferiores
DOI:
https://doi.org/10.5540/tema.2012.013.01.0013Abstract
Este trabalho aborda o problema de dimensionamento de lotes monoestágio em um ambiente com máquinas paralelas distintas. Cada item pode ser produzido em qualquer máquina, acarretando um tempo de preparação que é gasto antes de começar a produção. O objetivo do trabalho consiste em obter limitantes inferiores de boa qualidade para este problema. Para tanto, é desenvolvido um método de solução baseado numa reformulação do problema e na relaxação Lagrangiana de um conjunto de restrições. Alguns resultados computacionais são apresentados comparando o método proposto com um trabalho da literatura e com um pacote computacional.
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