Mathematical Problems in Engineering / 2018 / Article / Fig 1

Research Article

Compound Fault Diagnosis of Bearings Using an Improved Spectral Kurtosis by MCDK

Figure 1

Selection of resonance band of compound fault by FSK.
(a) Two resonance bands and their envelope spectrum identified by FSK
(b) The limitation of FSK to compound fault identification
(c) The limitations of FSK in identifying compound fault under noise interference