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Tomada de decisão multicritério para aumento da sustentabilidade no processo de montagem de bicicletas
| Name: | Description: | Size: | Format: | |
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| 4.63 MB | Adobe PDF |
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Abstract(s)
A presente dissertação tem como objetivo propor e avaliar estratégias sustentáveis para
melhorar o desempenho da linha de montagem de bicicletas da empresa RTE. O trabalho
assenta na aplicação de uma metodologia de análise de decisão multicritério, que permite
comparar alternativas de investimento sob diversas perspetivas de sustentabilidade. A
investigação inicia-se com uma revisão bibliográfica que enquadra os conceitos de
sustentabilidade no contexto industrial, os fundamentos da metodologia multicritério e a sua
integração com práticas sustentáveis. Em seguida, são identificadas três alternativas
estratégicas: a instalação de um sistema de produção de energia renovável, a digitalização da
linha de montagem e a substituição de ferramentas pneumáticas por ferramentas elétricas.
Estas alternativas são avaliadas segundo seis critérios representativos das dimensões
económica, ambiental, social, de inovação, de qualidade e de produtividade. Para suportar esta
avaliação foi utilizada uma metodologia híbrida que combina o método AHP com o método
PROMETHEE. A determinação dos pesos relativos dos critérios foi realizada através do método
AHP, com base em entrevistas à administração da empresa. Os valores obtidos foram
integrados no método PROMETHEE para calcular os fluxos de preferência e realizar a ordenação
das alternativas. Os resultados demonstraram que a substituição de ferramentas pneumáticas
por ferramentas elétricas foi a alternativa mais vantajosa, com um fluxo líquido de 0,63. A
digitalização da linha obteve um valor de 0,25 e a instalação de um sistema de produção de
energia renovável um valor de -0,89. O estudo demonstra o potencial da abordagem
multicritério na tomada de decisão industrial e propõe recomendações para a sua aplicação
prática e evolução futura.
This dissertation aims to propose and evaluate sustainable strategies to improve the performance of the bicycle assembly line at the company RTE. The work is based on the application of a multi-criteria decision analysis (MCDA) methodology, which allows comparing investment alternatives from various sustainability perspectives. The research begins with a literature review that frames the concepts of sustainability in the industrial context, the fundamentals of multi-criteria methodology, and its integration with sustainable practices. Three strategic alternatives are then identified: the installation of a renewable energy production system, the digitalization of the assembly line, and the replacement of pneumatic tools with electric tools. These alternatives are evaluated according to six criteria representing the economic, environmental, social, innovation, quality, and productivity dimensions. To support this evaluation, a hybrid methodology combining the AHP and PROMETHEE methods was used. The determination of the relative weights of the criteria was carried out using the AHP method, based on structured interviews with the company’s management. The obtained weights were integrated into the PROMETHEE method to calculate the preference flows and rank the alternatives. The results showed that replacing pneumatic tools with electric tools was the most advantageous alternative, with a net flow of 0.63. Digitalization of the assembly line scored 0.25, and the installation of a renewable energy system scored -0.89. The study demonstrates the potential of the multi-criteria approach in industrial decision-making and proposes recommendations for its practical application and future development.
This dissertation aims to propose and evaluate sustainable strategies to improve the performance of the bicycle assembly line at the company RTE. The work is based on the application of a multi-criteria decision analysis (MCDA) methodology, which allows comparing investment alternatives from various sustainability perspectives. The research begins with a literature review that frames the concepts of sustainability in the industrial context, the fundamentals of multi-criteria methodology, and its integration with sustainable practices. Three strategic alternatives are then identified: the installation of a renewable energy production system, the digitalization of the assembly line, and the replacement of pneumatic tools with electric tools. These alternatives are evaluated according to six criteria representing the economic, environmental, social, innovation, quality, and productivity dimensions. To support this evaluation, a hybrid methodology combining the AHP and PROMETHEE methods was used. The determination of the relative weights of the criteria was carried out using the AHP method, based on structured interviews with the company’s management. The obtained weights were integrated into the PROMETHEE method to calculate the preference flows and rank the alternatives. The results showed that replacing pneumatic tools with electric tools was the most advantageous alternative, with a net flow of 0.63. Digitalization of the assembly line scored 0.25, and the installation of a renewable energy system scored -0.89. The study demonstrates the potential of the multi-criteria approach in industrial decision-making and proposes recommendations for its practical application and future development.
Description
Keywords
MCDA Sustainability Industrial processes AHP PROMETHEE Sustentabilidade Processos industriais