| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.2 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
O papel da manutenção tem vindo a evoluir devido ao reconhecimento da sua importância em diversas vertentes, nomeadamente na qualidade das prestações do serviço de uma empresa, garantido a fiabilidade e a segurança dos equipamentos, mas também nas vertentes financeiras e económicas pela otimização do ciclo de vida dos equipamentos. O objetivo do presente trabalho consistiu numa análise crítica da situação atual de uma PME, cuja finalidade é a prestação de serviços de alojamento a pessoas com incapacidade física e mental, e criar uma estratégia de gestão de manutenção a ser implementada, baseada na construção de um plano de manutenções de elevadores, de forma a melhorar o resultado empresarial e a qualidade do serviço prestado. Para atingir o objetivo mencionado acima foram necessários vários procedimentos, começando com a análise do equipamento mais critico e o respetivo modo de falha mais critico, com a ajuda das ferramentas de decisão multicritério AHP, Método dos 5 Porquês e FMEA, de forma a decidir para que equipamento e para que finalidade o plano de manutenções deverá ser desenvolvido. Uma vez elaborado o plano de manutenções, fez-se um estudo da viabilidade económica do projeto através das ferramentas de análise de investimento, VAL e TIR, assim como a análise de risco através do processo do Bowtie. Através da identificação dos principais perigos e fontes de risco, desenvolveram-se duas barreiras de prevenção fundamentais a serem incluídas no plano de manutenções de forma a evitar a interrupção ou a não implementação mesmo. Após a introdução das barreiras de prevenção, avaliou-se novamente a viabilidade económica do projeto, onde foram necessários alguns reajustes em relação ao investimento inicial e o tempo de vida útil do projeto. Um dos trabalhos futuros a ser desenvolvido com base no plano de manutenções elaborado, será a criação do programa de Gestão Lean a longo prazo para a organização ser capaz de combater o aumento da taxa de inflação e os respetivos custos, promovendo uma melhor qualidade de serviço ao cliente. Outro aspeto a considerar seria o desenvolvimento de um programa de controlo de circulação diária nos elevadores, de forma a tornar o processo mais rápido e eficaz, regularizando a circulação por todos os elevadores.
The role of maintenance has been evolving due to the recognition of its importance in several aspects, such as the quality of a company's services, guaranteeing the reliability and safety of equipment, as well as in financial and economic aspects by optimizing the life cycle of the equipment. The objective of this work was to critically analyze the current situation of an SME, whose purpose is to provide accommodation services to people with physical and mental disabilities, and to create a maintenance management strategy to be implemented, based on the construction of a elevator maintenance plan, in order to improve business results and the quality of the service provided. To achieve the objective mentioned above, several procedures were necessary, starting with the analysis of the most critical equipment and its most critical failure mode, with the help of the multi-criteria decision tools AHP, 5 Whys Method and FMEA, in order to decide for what equipment and for what purpose the maintenance plan should be developed. Once the maintenance plan was drawn up, a study of the project's economic viability was carried out using investment analysis tools, VAL and IRR, as well as risk analysis through the Bowtie process. By identifying the main hazards and sources of risk, two fundamental prevention barriers were developed to be included in the maintenance plan in order to avoid interruption or non-implementation. After the introduction of prevention barriers, the economic viability of the project was again assessed, where some readjustments were necessary in relation to the initial investment and the useful life of the project. One of the future works to be developed based on the maintenance plan prepared, will be the creation of a long-term Lean Management program for the organization to be able to combat the increase in the inflation rate and the respective costs, promoting a better quality of service. to the client. Another aspect to consider would be the development of a daily circulation control program in elevators, in order to make the process faster and more efficient, regularizing circulation in all elevators.
The role of maintenance has been evolving due to the recognition of its importance in several aspects, such as the quality of a company's services, guaranteeing the reliability and safety of equipment, as well as in financial and economic aspects by optimizing the life cycle of the equipment. The objective of this work was to critically analyze the current situation of an SME, whose purpose is to provide accommodation services to people with physical and mental disabilities, and to create a maintenance management strategy to be implemented, based on the construction of a elevator maintenance plan, in order to improve business results and the quality of the service provided. To achieve the objective mentioned above, several procedures were necessary, starting with the analysis of the most critical equipment and its most critical failure mode, with the help of the multi-criteria decision tools AHP, 5 Whys Method and FMEA, in order to decide for what equipment and for what purpose the maintenance plan should be developed. Once the maintenance plan was drawn up, a study of the project's economic viability was carried out using investment analysis tools, VAL and IRR, as well as risk analysis through the Bowtie process. By identifying the main hazards and sources of risk, two fundamental prevention barriers were developed to be included in the maintenance plan in order to avoid interruption or non-implementation. After the introduction of prevention barriers, the economic viability of the project was again assessed, where some readjustments were necessary in relation to the initial investment and the useful life of the project. One of the future works to be developed based on the maintenance plan prepared, will be the creation of a long-term Lean Management program for the organization to be able to combat the increase in the inflation rate and the respective costs, promoting a better quality of service. to the client. Another aspect to consider would be the development of a daily circulation control program in elevators, in order to make the process faster and more efficient, regularizing circulation in all elevators.
Description
Dissertação de natureza científica para obtenção do grau de Mestre em Engenharia e Gestão Industrial
Keywords
Manutenção Decisão multicritério Lean thinking Estratégia de manutenção Risco Incerteza AHP Método dos 5 Porquês FMEA Maintenance Multi-criteria decision tools Lean thinking Maintenance strategy Uncertainty AHP 5 Whys method FMEA
Citation
PATEL, Chandni Hitesh - Abordagem multicritério de apoio à decisão no planeamento da manutenção – Estudo de caso. Lisboa: Instituto Superior de Engenharia de Lisboa, 2023. Dissertação de Mestrado.