Utilização de regras de despacho para programação de produção em ambiente Jobshop
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2013
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Imamura, D. N.
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Chang Junior, João
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IMAMURA, D. N. Utilização de regras de despacho para programação de produção em ambiente Jobshop. 2013. 82 f. Dissertação (Mestrado em Engenharia Mecânica) - Centro Universitário da FEI, São Bernardo do Campo, 2013 Disponível em: . Acesso em: 11 set. 2013.
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A forte competição entre as organizações industriais faz com que se busque olhar em detalhe as atividades que impactam seus custos operacionais. Nesse contexto, observa-se cada vez mais a importância do planejamento detalhado da produção nos resultados do chão de fábrica, vitais para o bom resultado da empresa. Em função disso, esta atividade, conhecida como scheduling, responsável pelo sequenciamento final do plano de produção tem recebido grande atenção de pesquisadores nos últimos anos.Dentre os ambientes industriais aquele conhecido como jobshop é um dos mais importantes e complexos. Uma das áreas de maior desenvolvimento no suporte aos métodos de scheduling do jobshop é a de softwares específicos para essa finalidade, disponíveis, porém de certa complexidade e dificuldade de implantação por organizações de menor porte e recursos. Este trabalho procurou conhecer um desses softwares, o IBM ILOG CPLEX ®, ao mesmo tempo em que buscou alternativas mais acessíveis para essas últimas organizações e comparando-as, para avaliar sua viabilidade. Neste caso estudou-se a aplicação de regras simplificadoras conhecidas como regras de despacho. Numa simulação prática observou-se que a solução mais simples continua a ser uma opção válida e acessível para organizações que não puderam ainda ter acesso a recursos mais sofisticados, para problemas de menor complexidade.
The hard competition among industrial organizations drives them to look forward, more and more, the details that have impact in their operational costs. In this context the detailed production planning importance in the shop floor results is being more and more recognized and this is a key to the successful final result of any organization. As a consequence, this activity, known as scheduling, responsible for the final production plan sequencing has received great attention from researchers in the last years. Among the industrial environments the one known as jobshop is one of the most important and complexes. One of the areas of greatest development in the support to the jobshop scheduling is the area of software and there are some available in the market, specific to this purpose, but with a certain level of complexity and limited access for smaller organizations with limited resources. This work aimed at learning about one of these softwares, the IBM ILOG CPLEX ®, at the same time as aiming at the evaluation of easier alternatives, more attainable for these last organizations and comparing them to understand their feasibility. In this case it was studied the application of simplification rules, known as dispatch rules. In a practical simulation it was observed that the easier solution can be a valid alternative, attainable for smaller organizations with limited access to more sophisticated resources, for problems of lower level of complexity.
The hard competition among industrial organizations drives them to look forward, more and more, the details that have impact in their operational costs. In this context the detailed production planning importance in the shop floor results is being more and more recognized and this is a key to the successful final result of any organization. As a consequence, this activity, known as scheduling, responsible for the final production plan sequencing has received great attention from researchers in the last years. Among the industrial environments the one known as jobshop is one of the most important and complexes. One of the areas of greatest development in the support to the jobshop scheduling is the area of software and there are some available in the market, specific to this purpose, but with a certain level of complexity and limited access for smaller organizations with limited resources. This work aimed at learning about one of these softwares, the IBM ILOG CPLEX ®, at the same time as aiming at the evaluation of easier alternatives, more attainable for these last organizations and comparing them to understand their feasibility. In this case it was studied the application of simplification rules, known as dispatch rules. In a practical simulation it was observed that the easier solution can be a valid alternative, attainable for smaller organizations with limited access to more sophisticated resources, for problems of lower level of complexity.