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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2013.tde-03052013-162852
Document
Author
Full name
Aline Aparecida de Souza Leão
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2013
Supervisor
Committee
Arenales, Marcos Nereu (President)
Miyazawa, Flávio Keidi
Oliveira, José Fernando da Costa
Rangel, Maria do Socorro Nogueira
Toledo, Franklina Maria Bragion de
Title in Portuguese
Extensões em problemas de corte: padrões compartimentados e problemas acoplados
Keywords in Portuguese
Problema da mochila compartimentada
Problema de dimensionamento de lotes
Problemas de corte bidimensional
Problemas de corte unidimensional
Abstract in Portuguese
Nesta tese é abordado o problema da mochila compartimentada e o problema de corte de estoque unidimensional acoplado ao problema dimensionamento de lotes. Para o problema da mochila compartimentada é apresentada a versão unidimensional e proposta a versão bidimensional, denominados como problema da mochila compartimentada unidimensional e problema da mochila compartimentada bidimensional, respectivamente. Para o problema de corte de estoque acoplado ao dimensionamento de lotes são apresentadas três variações: uma máquina para produzir um tipo de objeto; uma máquina para produzir vários tipos de objetos; múltiplas máquinas para produzir vários tipos de objetos. Algumas formulações matemáticas de programação inteira e inteira-mista, decomposições dos problemas em problema mestre e subproblemas e heurísticas baseadas no método geração de colunas são propostas para os problemas da mochila compartimenta e o problema acoplado. Em específico, para o problema acoplado são aplicadas decomposições Dantzig-Wolfe, que podem ser por período, por máquina ou por período e máquina. Além disso, uma heurística baseada em grafo E/OU é proposta para o problema da mochila compartimentada bidimensional
Title in English
Extensions for cutting stock problems: compartmentalized cutting patterns and integrated problems
Keywords in English
Compartmentalized knapsack problem
Lot sizing problem
One dimensional cutting stock problem
Two dimensional cutting stock problem
Abstract in English
In this thesis we present the constrained compartmentalized knapsack problem and the one dimensional cutting stock problem integrated with the capacitated lot sizing problem. For the constrained compartmentalized knapsack problem, the one dimensional version is presented and the two dimensional version is proposed, called one-dimensional compartmentalized knapsack problem and two-dimensional compartmentalized knapsack problem, respectively. For the cutting stock problem integrated with the capacitated lot sizing problem three variations are considered: one machine to produce one type of object; one machine to produce multiple types of objects; multiple machines to produce multiple types of objects. Some integer and mixed programming formulations, decompositions of the problems in master problem and subproblems and heuristics based on column generation method are proposed for the compartmentalized knapsack problem and the cutting stock problem integrated with the capacitated lot sizing problem. In particular, the period, the machine, and the period and machine Dantzig- Wolfe decompositions are applied for the integrated problem. Moreover, a heuristic based on the graph AND/OR is proposed for the two-dimensional compartmentalized knapsack problem. Computational results show that these mathematical formulations and methods provide good solutions
 
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Publishing Date
2013-05-03
 
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