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Abstract(s)
A presente dissertação foi realizada numa empresa do ramo de energia, mais concretamente na área de equipamentos de conversão de energia renovável, no âmbito do Mestrado de Engenharia e Gestão Industrial, do Instituto Superior de Engenharia do Porto. O estudo de caso teve como principal objetivo, a execução de uma proposta de construção de uma linha de montagem de inversores fotovoltaicos. Esta proposta resultou do aumento da procura deste tipo de equipamentos. Para tal, foram impostos os seguintes requisitos: o takt time deveria situar-se em oito horas de trabalho, a linha de montagem ter um espaço de ocupação máximo - 255 m2 , e ter de agregar todos os postos de abastecimento necessários à linha, bem como o próprio abastecimento dos postos de montagem efetuado pela logística. A metodologia aplicada na resolução do problema em estudo, foi a aplicação da filosofia Lean, com recurso a ferramentas tais como: balanceamento da linha de montagem, controlo da produção através do sistema Kanban, e a aplicação do trabalho standardizado. Com a aplicação da metodologia descrita, foi possível chegar a uma solução para o problema proposto. Após um balanceamento, efetuado por tipo de tarefas e por posto de trabalho, verificou-se que era necessário criar cinco postos de trabalho, acrescidos de um posto de pré-montagem. Também, em alguns casos eram necessários dois trabalhadores no mesmo posto. Conjuntamente, foi necessário criar uma listagem de todo o material/peças que seriam utilizadas em cada posto. Após esta identificação foi possível desenvolver o modelo de controlo de produção baseado no sistema Kanban. Por fim, um dos tópicos mais importantes desenvolvidos no decorrer do trabalho consistiu na criação de instruções de trabalho que proporcionarão um trabalho standardizado por parte dos colaboradores, prevenindo falhas e aumentando a qualidade de produção dos inversores fotovoltaicos. Como resultado final resultante do presente trabalho de estágio foi possível a definição e especificação detalhada da linha de montagem de inversores fotovoltaicos de acordo com os requisitos, encontrando-se esta no momento da escrita deste relatório em fase de construção.
The present thesis is based in a company of the energy sector, specifically in the equipment of renewable energy conversion, within the scope of the Master of Industrial Management and Engineering, of the School of engineering of Polytechnic of Porto. The main objective of the case study was building a proposal of an assembly line for photovoltaic inverters. This proposal is due to the increase of the demand for this type of equipment. To achieve this goal, the following requirements must be fulfilled: takt time should be eight working hours, the assembly line must have a maximum occupation space of 255 m2 , and has to join all the necessary assembly stations to the line, as well as the logistic supply chain. The applied methodology to solve the problem was the application of the Lean philosophy, using tools such as: assembly line balancing, production control through the Kanban system, and the application of the standard work. It was possible to reach a solution for the proposed problem. After balancing, by type of tasks and by workstation, it was verified the requirement to create five jobs, plus a preassembly station. In some cases, two workers are required at the same station. It was also necessary to create a list of all the material / parts that would be used in each station. After this identification, it was possible to develop the production control model based on the Kanban system. Finally, one of the most important topics developed in this study consists of performing work instructions that will provide a more efficient work by the employees, preventing failures and increasing the production quality of the photovoltaic inverters. As result of this study, it was possible to define and detail the assembly line of photovoltaic inverters according to the requirements, which is in the construction stage at the time of writing this thesis.
The present thesis is based in a company of the energy sector, specifically in the equipment of renewable energy conversion, within the scope of the Master of Industrial Management and Engineering, of the School of engineering of Polytechnic of Porto. The main objective of the case study was building a proposal of an assembly line for photovoltaic inverters. This proposal is due to the increase of the demand for this type of equipment. To achieve this goal, the following requirements must be fulfilled: takt time should be eight working hours, the assembly line must have a maximum occupation space of 255 m2 , and has to join all the necessary assembly stations to the line, as well as the logistic supply chain. The applied methodology to solve the problem was the application of the Lean philosophy, using tools such as: assembly line balancing, production control through the Kanban system, and the application of the standard work. It was possible to reach a solution for the proposed problem. After balancing, by type of tasks and by workstation, it was verified the requirement to create five jobs, plus a preassembly station. In some cases, two workers are required at the same station. It was also necessary to create a list of all the material / parts that would be used in each station. After this identification, it was possible to develop the production control model based on the Kanban system. Finally, one of the most important topics developed in this study consists of performing work instructions that will provide a more efficient work by the employees, preventing failures and increasing the production quality of the photovoltaic inverters. As result of this study, it was possible to define and detail the assembly line of photovoltaic inverters according to the requirements, which is in the construction stage at the time of writing this thesis.
Description
Keywords
Lean Trabalho Standardizado Balanceamento Sistema Kanban Inversor Fotovoltaico Standard Work Balancing Kanban System Photovoltaic Inverter