Banca de DEFESA: GABRIELLE ROSA RIBEIRO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GABRIELLE ROSA RIBEIRO
DATE: 17/02/2022
TIME: 10:00
LOCAL: Online
TITLE:
KEY WORDS:

Dynamic schedule. Maintenance schedule. Maintenance management.

PAGES: 65
BIG AREA: Engenharias
AREA: Engenharia de Produção
SUMMARY:

The planning of maintenance activities is essential to assist the definition and scheduling maintenance actions. In practice, its implementation leads to the establishment of maintenance policies, defining the levels of each action, frequency, and optimization of associated resources. Once the maintenance plan is defined, during its execution, events may occur, such as equipment failure that results in a corrective intervention, which imply the replanning of scheduled activities. In this context, a dynamic maintenance schedule considers these coexisting events due to the constant running of production, updating the dates of activities by introducing new information into the system during its execution. By considering these variations, it is possible to avoid unnecessary downtime and maintenance activities, providing total cost savings associated with maintenance activities. This work presents a model to support managers’ decision making about the maintenance activities schedule, where updates are made as new information is inserted throughout its execution, taking advantage of maintenance opportunities. A literature review was carried out on the existing maintenance models, in order to support the structuring of the proposed model and the construction of the dynamic schedule, which was validated from the application in a chlorine and derivatives industry. As a result, it was possible to observe a 71% reduction in scheduled shutdowns and a 25% reduction in plant shutdowns. The proposed model presented an approach capable of adjusting the schedule of activities as new events occur throughout its execution. It is a tool capable of assisting managers in their decision-making processes, generating economic impact on organizations due to the reduction of system downtime and excess preventive maintenance activities.

BANKING MEMBERS:
Externa à Instituição - CRISTINA GOMES DE SOUZA
Presidente - 1385501 - ANA PAULA CABRAL SEIXAS COSTA
Interno - 1078937 - RAPHAEL HARRY FREDERICO RIBEIRO KRAMER