Fmea and Fta Analysis for Application of the Reliability- Centered Maintenance Methodology: Case Study on Hydraulic Turbines
نویسندگان
چکیده
The general objective of this work is to evaluate the application impact of the RCM (Reliability-Centered Maintenance) methodology on a power generating system. The RCM warrants significant improvements in the maintenance-functions performance, and also an increase in reliability and availability of equipments. It permits the definition of a maintenance planning in a structured form. It was developed a case study on the oil circulation system of combined (guide and prop) bearing of a hydraulic Kaplan turbine used in the hydroelectric plant of Balbina – Amazonas ─ Brazil. This study was done making use of the magnitudes monitored by the plant supervision and control system. Were used the tools FMEA (Failure Modes and Effects Analysis) and FTA (Fault Tree Analysis) to support the study of failures. This work presents a comparative analysis of these two tools, showing the contribution of each one for the implementation of a structured predictive maintenance planning.
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