Research Article
Multiple-Fault Detection Methodology Based on Vibration and Current Analysis Applied to Bearings in Induction Motors and Gearboxes on the Kinematic Chain
Figure 7
Vibration spectra of the experiment with VFD set to 5 Hz.
(a) Healthy condition |
(b) Bearing defect |
(c) 75% of uniform wear |
(d) 75% of uniform wear + bearing defect |