Vibration Based Diagnosis for Planetary Gearboxes Using an Analytical Model

Figure 2

Predicted vibration spectrum around the fundamental gear mesh frequency picked by a fixed vibration sensor on the annulus for , , , and ; (a) healthy case; (b), (c), and (d) a local gear fault on the annulus, sun, and one planet gear, respectively.

(a)

(b)

(c)

(d)