Mathematical Problems in Engineering / 2018 / Article / Fig 13

Research Article

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

Figure 13

The FSK analysis of signals after MCKD.
(a) The spectral kurtosis of inner ring fault
(b) The envelope spectrum after FSK filtering
(c) The spectral kurtosis of rolling element fault
(d) The envelope spectrum after FSK filtering