Discriminant Feature Distribution Analysis-Based Hybrid Feature Selection for Online Bearing Fault Diagnosis in Induction Motors

Figure 2

Different single and combined bearing faults: (a) outer raceway fault, (b) inner raceway fault, (c) roller fault, (d) outer and inner raceway faults, (e) outer raceway and roller faults, (f) inner raceway and roller faults, and (g) inner and outer raceway and roller faults.

(a)

(b)

(c)

(d)

(e)

(f)

(g)