DEFINITION OF A FLEXIBLE PREVENTIVE MAINTENANCE POLICY FOR TECHNICAL SYSTEMS: A CASE STUDY WITH A HYDRAULIC PRESS

This paper presents the results of a case study that involved the design of a flexible preventive maintenance policy for a hydraulic press used in the production of battery components (X-Press). The policy considered, called the STZ policy, was adapted to the context of the equipment studied. The process of sizing the policy initially involved defining the necessary parameters for its mathematical model. The biggest challenge of the case study involved the reliability analysis of the press: due to the absence of objective data, it was necessary to develop a procedure for eliciting expert knowledge. After defining the parameters of the model, tools developed by the authors were used to search for good solutions and sensitivity analysis. With the results obtained, it was possible to draft a maintenance policy recommendation for the X Press.