Comparaison entre la Technique Vibratoire et la Technique des Courants Statoriques : Application au Diagnostic des Roulements à Billes

The diagnosis of defects affecting ball bearings used in electrical drives is a research area very studied given the importance of these organs in the transfer of energy. For this purpose, several diagnostic techniques have been developed. These techniques include vibration analysis, a widely used approach in industry, and the analysis of the stator current. The purpose of this article is to carry out a simple comparative study on the capacities and performances of each technique in the diagnosis of ball bearing defects of an asynchronous motor. The experimental results obtained show that these two techniques are complementary since their reliability depends on the defective element constituting the bearing.