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Abstract(s)
Atualmente, a competitividade industrial é uma máxima na sociedade, sendo que, para o sucesso de uma empresa, a sua organização interna é crucial. Assim, a procura por melhorar os seus processos, sejam eles administrativos, produtivos, logísticos ou outros, é uma constante. A simulação, ponto de interesse deste trabalho, é uma ferramenta, apesar da sua complexidade, destinada a facilitar a tomada de decisão por parte do utilizador perante a possibilidade de existência de uma ou mais soluções para a melhoria desses processos. Neste sentido, a presente dissertação foi realizada em contexto industrial na empresa Duvalli Mattress Ticking, onde se procurou desenvolver um modelo de simulação relativo à produção de malhas e damascos, com o intuito de testar diferentes estratégias de controlo para os fluxos de materiais desde o armazém de matérias primas até ao armazém de produto acabado e, assim, avaliar o impacto destas estratégias sobre o sistema atual da empresa. Foi desenvolvida uma interface gráfica, cujo objetivo passa por dar ao utilizador a possibilidade de variar certos parâmetros de entrada e determinar qual a estratégia a implementar para uma posterior avaliação. A ferramenta de apoio à decisão foi construída tendo por base dados recolhidos de cinco setores da fábrica: armazém de matéria prima, produção de malhas, produção de damascos, acabamentos e armazém de produto acabado. A sua validação foi realizada com os dados relativos a uma semana de produção para os dois tipos de produto. De uma forma geral, o sistema desenvolvido cumpriu os objetivos a que foi sujeito, tendo todas as cinco estratégias desenvolvidas mostrado resultados positivos, aumentando a produção de malhas em até 7%, a produção de damascos em até 43% e diminuindo o tempo de espera para a entrada na área de acabamentos em 75%, quando comparadas com o sistema atual da empresa.
Currently, industrial competitiveness is a maximum in society, and for the success of a company, its internal organization is crucial. Thus, the demand to improve their processes, be they administrative, productive or logistic is a constant. The simulation, point of interest of this work, is a tool, despite its complexity, intended to facilitate the decision making of the user, when faced with the possibility of one or more solutions for the improvement of these processes. In this sense, the present dissertation was carried out in an industrial context in the company Duvalli Mattress Ticking, where a simulation model regarding the production of knits and fabrics was developed, to test different control strategies for material flows from the warehouse of raw materials to the finished product warehouse and thus evaluate the impact of these strategies on the company’s current system. A graphical interface was developed, whose objective was to give the user the possibility to vary certain input parameters and to determinate which strategy to implement for a later evaluation. The decision support tool was built based on data collect from five sectors of the plant: raw material warehouse, knit production, fabrics production, finishing works and finished product warehouse. Its validation was carried out with data related to one week of production for the two types of product. In general, the developed system fulfilled the objectives to which it was subjected, with all five strategies developed showing positive results, increasing knit and fabrics production by up to 7% and 43%, respectively, and decreasing waiting time when entering into the finishing works area by 75% when compared to the current system of the company.
Currently, industrial competitiveness is a maximum in society, and for the success of a company, its internal organization is crucial. Thus, the demand to improve their processes, be they administrative, productive or logistic is a constant. The simulation, point of interest of this work, is a tool, despite its complexity, intended to facilitate the decision making of the user, when faced with the possibility of one or more solutions for the improvement of these processes. In this sense, the present dissertation was carried out in an industrial context in the company Duvalli Mattress Ticking, where a simulation model regarding the production of knits and fabrics was developed, to test different control strategies for material flows from the warehouse of raw materials to the finished product warehouse and thus evaluate the impact of these strategies on the company’s current system. A graphical interface was developed, whose objective was to give the user the possibility to vary certain input parameters and to determinate which strategy to implement for a later evaluation. The decision support tool was built based on data collect from five sectors of the plant: raw material warehouse, knit production, fabrics production, finishing works and finished product warehouse. Its validation was carried out with data related to one week of production for the two types of product. In general, the developed system fulfilled the objectives to which it was subjected, with all five strategies developed showing positive results, increasing knit and fabrics production by up to 7% and 43%, respectively, and decreasing waiting time when entering into the finishing works area by 75% when compared to the current system of the company.
Description
Keywords
Simulação Estratégias de Controlo Fluxos Materiais ARENA Simulation Control Strategies Flow of Materials