A Novel Wheelset Bearing Fault Diagnosis Method Integrated CEEMDAN, Periodic Segment Matrix, and SVD

Figure 20

Results obtained by the proposed CPS for a bearing compound fault signal: (a) IMF 2; (b) first periodic impact component extracted from (a); (c) second periodic impact components extracted from (a); (d, f) squared envelope spectra of (a–c), respectively.

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(b)

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