Production Planning and scheduling in the Footwear Industry

Detalhes bibliográficos
Autor(a) principal: Moreira, Carlos André Vaz
Data de Publicação: 2021
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/19282
Resumo: In recent years, the Portuguese footwear industry has changed drastically. What used to be a low-cost mass production industry has changed to adapt to the needs of retail chains dealing with small orders and personalized footwear. These changes increase the demand for flexible and fast production lines, able to deliver orders of any size. This thesis deals with production planning for the injection line of a company producing safety shoes. In this study, a new method for the lot-sizing is proposed to balance the production over the following weeks, minimizing the production costs, stocks and backlog requirements. This is complemented with a short-term planning (sequencing) algorithm for dealing with operational requirements. In order to solve these problems, a hierarchical method is used to exchange data between the midterm lot-sizing problem and the scheduling a heuristic, providing feasible solutions to both. Results obtained show that the company can significantly benefit from this new planning method.
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spelling Production Planning and scheduling in the Footwear IndustryLot-SizingSchedulingProduction PlanningFootwear IndustrySequenciamentoPlaneamento da produçãoIndustria do calçadoIn recent years, the Portuguese footwear industry has changed drastically. What used to be a low-cost mass production industry has changed to adapt to the needs of retail chains dealing with small orders and personalized footwear. These changes increase the demand for flexible and fast production lines, able to deliver orders of any size. This thesis deals with production planning for the injection line of a company producing safety shoes. In this study, a new method for the lot-sizing is proposed to balance the production over the following weeks, minimizing the production costs, stocks and backlog requirements. This is complemented with a short-term planning (sequencing) algorithm for dealing with operational requirements. In order to solve these problems, a hierarchical method is used to exchange data between the midterm lot-sizing problem and the scheduling a heuristic, providing feasible solutions to both. Results obtained show that the company can significantly benefit from this new planning method.Nos últimos anos, a indústria de calçado portuguesa tem mudado drasticamente. O que costumava ser uma indústria de produção em massa de baixo custo mudou de modo a adaptar-se a cadeias retalhistas que lidam com pequenas encomendas e calçado personalizado. Estas mudanças aumentam a procura de linhas de produção flexíveis e rápidas, capazes de entregar encomendas de qualquer dimensão. Esta tese trata do planeamento da produção para a linha de injecção de uma empresa que fabrica calçado de segurança. Neste estudo é proposto um novo método de planeamento a médio/longo prazo para balancear a produção ao longo das semanas seguintes, minimizando os custos de produção, stocks e requisitos de atraso. Isto é complementado com um algoritmo de planeamento (sequenciamento) a curto prazo para lidar com os requisitos operacionais. A resolução dos dois problemas recorre a um algoritmo que realiza a troca de dados entre o problema de dimensionamento de lotes a médio prazo e o sequenciamento da produção, de modo a encontrar uma solução viável para ambos. Os resultados obtidos mostram que a empresa pode beneficiar significativamente com este novo método de planeamento.Viana, Ana Maria Marques Moura GomesRepositório Científico do Instituto Politécnico do PortoMoreira, Carlos André Vaz2022-11-15T01:31:23Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.22/19282TID:202796019enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:13:25Zoai:recipp.ipp.pt:10400.22/19282Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:39:21.713341Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Production Planning and scheduling in the Footwear Industry
title Production Planning and scheduling in the Footwear Industry
spellingShingle Production Planning and scheduling in the Footwear Industry
Moreira, Carlos André Vaz
Lot-Sizing
Scheduling
Production Planning
Footwear Industry
Sequenciamento
Planeamento da produção
Industria do calçado
title_short Production Planning and scheduling in the Footwear Industry
title_full Production Planning and scheduling in the Footwear Industry
title_fullStr Production Planning and scheduling in the Footwear Industry
title_full_unstemmed Production Planning and scheduling in the Footwear Industry
title_sort Production Planning and scheduling in the Footwear Industry
author Moreira, Carlos André Vaz
author_facet Moreira, Carlos André Vaz
author_role author
dc.contributor.none.fl_str_mv Viana, Ana Maria Marques Moura Gomes
Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Moreira, Carlos André Vaz
dc.subject.por.fl_str_mv Lot-Sizing
Scheduling
Production Planning
Footwear Industry
Sequenciamento
Planeamento da produção
Industria do calçado
topic Lot-Sizing
Scheduling
Production Planning
Footwear Industry
Sequenciamento
Planeamento da produção
Industria do calçado
description In recent years, the Portuguese footwear industry has changed drastically. What used to be a low-cost mass production industry has changed to adapt to the needs of retail chains dealing with small orders and personalized footwear. These changes increase the demand for flexible and fast production lines, able to deliver orders of any size. This thesis deals with production planning for the injection line of a company producing safety shoes. In this study, a new method for the lot-sizing is proposed to balance the production over the following weeks, minimizing the production costs, stocks and backlog requirements. This is complemented with a short-term planning (sequencing) algorithm for dealing with operational requirements. In order to solve these problems, a hierarchical method is used to exchange data between the midterm lot-sizing problem and the scheduling a heuristic, providing feasible solutions to both. Results obtained show that the company can significantly benefit from this new planning method.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01T00:00:00Z
2022-11-15T01:31:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/19282
TID:202796019
url http://hdl.handle.net/10400.22/19282
identifier_str_mv TID:202796019
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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