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Advisor(s)
Abstract(s)
Este Projeto de Dissertação surge no âmbito da necessidade da Marinha
Portuguesa em conseguir predizer as necessidades de sobressalentes, desde que são
adquiridos ao Arsenal do Alfeite ou à Indústria Privada, até ao ponto em que são
armazenados e posteriormente distribuídos pelas várias Unidades Navais. O problema
consiste em tentar predizer as necessidades de sobressalentes para apoio da manutenção
(preventiva e corretiva) necessária para contrariar a degradação natural do material,
associada à passagem do tempo e à utilização operacional previsível num horizonte
temporal parametrizado, tendo em conta o Sistema de Gestão da Manutenção (S.G.M.) e
a teoria da Fiabilidade dos Equipamentos.
Para tal, é necessário fazer uma análise do historial de intervenções (DN 60)
presentemente informatizado no “software” SICALN, bem como a frequência de
utilização das FIT (fichas técnicas de desmontagem, montagem, reparação de
equipamentos e substituição de sobressalentes) utilizadas em manutenção preventiva,
interpretando as suas várias dependências e correlacionando ambas com a predição de
sobressalentes.
This Thesis Project comes within the Portuguese Navy requirement in achieve a characterization on the consumption of spare parts, which are acquired from Arsenal do Alfeite, S.A. or private industry to the point where they are stored and subsequently distributed to the various naval units. The problem is to attempt to predict the needs of spare parts for both preventive and corrective maintenance required to counteract the natural degradation of the material associated with time and the expected operational use in pre-determined time horizon, taking into account Management System Maintenance (SGM) and the theory of reliability of equipment’s. For all this, it is necessary to analyze the historical data (DN 60) currently in SICALN, and the frequency of use of the FIT (factsheets disassembly, assembly, repair equipment and replacement parts) used in preventive maintenance, interpreting its various dependencies and correlating both with the prediction of spare parts.
This Thesis Project comes within the Portuguese Navy requirement in achieve a characterization on the consumption of spare parts, which are acquired from Arsenal do Alfeite, S.A. or private industry to the point where they are stored and subsequently distributed to the various naval units. The problem is to attempt to predict the needs of spare parts for both preventive and corrective maintenance required to counteract the natural degradation of the material associated with time and the expected operational use in pre-determined time horizon, taking into account Management System Maintenance (SGM) and the theory of reliability of equipment’s. For all this, it is necessary to analyze the historical data (DN 60) currently in SICALN, and the frequency of use of the FIT (factsheets disassembly, assembly, repair equipment and replacement parts) used in preventive maintenance, interpreting its various dependencies and correlating both with the prediction of spare parts.
Description
Keywords
Marinha Portuguesa, Manutenção, Motores Propulsores, Sistema de Predição da Procura de Sobressalentes (SPPS). Portuguese Navy, Maintenance, MTU motors, Spares prediction system