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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
INSTRUMENTATION OF A DIDACTIC ROTATING MACHINE BENCH FOR FAULT DETECTION BASED ON FREQUENCY DOMAIN ANALYSIS
Submission Author:
Lucas de Souza Yamane , AM
Co-Authors:
Lucas de Souza Yamane, Matheus Salles, Paulo Roberto Oliveira Martins, Junout Martins Louzada Neto
Presenter: Paulo Roberto Oliveira Martins
doi://10.26678/ABCM.COBEM2017.COB17-2887
Abstract
Rotating machines are widely used in various industrial applications. Condition monitoring and fault detection of rotating machinery play a very important role to maintain these equipment in operant condition and predict potential failures, preventing undesirable accidents and increasing the devices’ reliability. An approach for fault detection is vibration analysis, which is better represented in the frequency domain, and consider that rotating machinery presents a specific vibration signature for their standard condition that changes with the development of a fault. Moreover, it is demanding for mechanical engineers have knowledge of instrumentation to make use of predictive maintenance techniques. Therefore, it’s essential to adopt methods to improve the learning retention making use of comprehensive experiments integrating the knowledge of these different areas during the students’ academic lives. In this paper, a didactic rotating machine bench was instrumented using accelerometers to measure the vibration response and an unbalancing failure was imposed. The vibration was measured in the time domain and then transformed in the frequency domain applying the Fourier Fast Transform (FFT). The results have shown an amplitude change at the first harmonic as expected from the classical vibration theory. This procedure proved to be a simple but useful methodology, which can be reproduced in many teaching institutions lining up the theory and practice.
Keywords
Instrumentation, Vibration Analysis, rotating machines, Fault Detection, Didactic Bench
