Application of Feature Fusion Using Coaxial Vibration Signal for Diagnosis of Rolling Element Bearings

Figure 4

Frequency distribution of each IMF of the original signal. (a) N (drive end). (b) N (fan end). (c) I-D (drive end). (d) B-F (fan end). (e) B-D (drive end). (f) B-D (fan end). (g) O6-D (drive end). (h) O6-D (fan end). (i) I-F (drive end). (j) I-F (fan end). (k) B-F (drive end). (l) B-F (fan end). (m) O3-F (drive end). (n) O3-F (fan end). (o) O12-F (drive end). (p) O12-F (fan end). Res means residual component.

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