The Method of Quantitative Trend Diagnosis of Rolling Bearing Fault Based on Protrugram and Lempel–Ziv

Figure 3

Simulation vibration signal of bearing outer race with different fault sizes. (a) Fault diameter: 0.5 mm. (b) Fault diameter: 2 mm. (c) Fault diameter: 3.5 mm. (d) Fault diameter: 5 mm.

(a)

(b)

(c)

(d)