Research Article
Vestas V90-3MW Wind Turbine Gearbox Health Assessment Using a Vibration-Based Condition Monitoring System
Figure 10
Envelope spectra of the obtained components from ICD (gearbox): (a) PC1(t), (b) PC2, (c) PC3(t), and (d) PC4(t).
| (a) |
| (b) |
| (c) |
| (d) |