| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 9.35 MB | Adobe PDF |
Abstract(s)
No âmbito do Ciclo de Estudos conducente ao grau de Mestre em Engenharia Mecânica, Perfil de Manutenção e Produção, foi realizado um projeto em contexto profissional na Embraer Portugal Estruturas Metálicas S.A., uma empresa da indústria aeronáutica dedicada à fabricação e montagem de estruturas metálicas. O presente projeto tem como principal objetivo aumentar a Disponibilidade Intrínseca de um equipamento produtivo crítico da linha de montagem, de forma a atingir e garantir a meta de classe mundial de 90%, através da aplicação da metodologia TPM e da utilização de ferramentas Lean. Com base na metodologia Investigação-Alão, foi inicialmente realizada uma análise à situação da linha e selecionado um equipamento baseado no estado dos indicadores MTBF, MTTR, OEE e na sua criticidade na linha de produção. De seguida foram identificados os principais problemas e posteriormente implementadas ações de melhoria com vista à redução do número de avarias e consequentemente ao aumento da disponibilidade intrínseca do equipamento. Os resultados destas ações foram positivos uma vez que, no final do projeto, foi possível verificar um valor de 91,80% de disponibilidade intrínseca do equipamento, superando o objetivo de 90%, e um valor médio de OEE de 66,7% face aos iniciais 58,1%, associado a um aumento de 170,9% do MTBF e uma redução de 48,42% do tempo total de máquina parada, comparativamente à situação inicial.
In the scope of the Study Cycle Leading to the master’s degree in Mechanical Engineering, Maintenance and Production Profile, a project was carried out in a professional context at Embraer Portugal Estruturas Metálicas S.A., a company in the aeronautical industry dedicated to the manufacture and assembly of metallic structures. The main objective of this project is to increase the Intrinsic Availability of an assembly line production equipment, to achieve and guarantee a world-class goal of 90%, through the application of TPM and the use of Lean tools. Based on the Action-Research Methodology, an analysis of the production line was carried out and an equipment was selected based on the state of the MTBF, MTTR and OEE indicators and its criticality in the production line. Then, the main problems were identified, and later improvement actions were implemented with a view to reducing the number of breakdowns and, consequently, increasing the intrinsic availability of the equipment. Positive results were achieved since, at the end of the project, it was possible to reach 91.80% of intrinsic availability of the equipment, exceeding the objective of 90%, and an average OEE value of 66.7% compared to the initial 58,1%, associated with a 170.9% increase in MTBF and a 48.4% reduction in the total downtime of the machine, compared to the initial situation.
In the scope of the Study Cycle Leading to the master’s degree in Mechanical Engineering, Maintenance and Production Profile, a project was carried out in a professional context at Embraer Portugal Estruturas Metálicas S.A., a company in the aeronautical industry dedicated to the manufacture and assembly of metallic structures. The main objective of this project is to increase the Intrinsic Availability of an assembly line production equipment, to achieve and guarantee a world-class goal of 90%, through the application of TPM and the use of Lean tools. Based on the Action-Research Methodology, an analysis of the production line was carried out and an equipment was selected based on the state of the MTBF, MTTR and OEE indicators and its criticality in the production line. Then, the main problems were identified, and later improvement actions were implemented with a view to reducing the number of breakdowns and, consequently, increasing the intrinsic availability of the equipment. Positive results were achieved since, at the end of the project, it was possible to reach 91.80% of intrinsic availability of the equipment, exceeding the objective of 90%, and an average OEE value of 66.7% compared to the initial 58,1%, associated with a 170.9% increase in MTBF and a 48.4% reduction in the total downtime of the machine, compared to the initial situation.
Description
Trabalho final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica – Ramo de Manutenção e Produção
Keywords
TPM Gestão da Manutenção MTBF MTTR Disponibilidade Intrínseca OEE TPM Maintenance management MTBF MTTR Intrinsic availability
Citation
Alves, Gonçalo Carlos da Silva Rocha - Implementação da Filosofia TPM numa Empresa da Indústria Aeronáutica. Lisboa: Instituto Superior de Engenharia de Lisboa, 2022. Dissertação de Mestrado