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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2018.tde-19032018-171524
Document
Author
Full name
Elisangela dos Santos Meza
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1997
Supervisor
Committee
Arenales, Marcos Nereu (President)
Fernandes, Flavio Cesar Faria
Wakabayashi, Yoshiko
Title in Portuguese
Problemas de Dimensionamento de Lotes com Aplicações Numa Fundição Automatizada
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Neste trabalho estudam-se problemas de dimensionamento de lotes com aplicações específicas em uma fundição automatizada. Quando várias ligas são consideradas na programação, o problema é modelado com um problema de programação linear inteira mista; caso contrário como um problema de programação linear. Algumas hipóteses são assumidas sobre o gargalo e heurísticas são desenvolvidas. Mostra-se também como a fundição pode ser integrada a um sistema de múltiplos estágios, tais como usinagem e montagem. Experiências computacionais sobre o desempenho dos métodos são relatadas.
Title in English
Not available
Keywords in English
Not available
Abstract in English
ln this work the subject of lot sizing problems is studied and a case study in an automated cast is presented. When different alloys are considered in the production scheduling, the problem is modeled as a linear mixed-integer programming problem; otherwise a linear programming problem is used. Some hypotheses on the production bottleneck are assumed and heuristic methods are developed. lt is also shown how the automated cast can be coupled with a multilevel global system. Computational performance of the methods is verified and the results presented.
 
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Publishing Date
2018-03-19
 
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