Fault Diagnoise of Rolling Bearing Based on EEMD and Instantaneous Energy Density Spectrum
A new fault diagnosis method for rolling bearing based on ensemble empirical mode decomposition (EEMD) and instantaneous energy density spectrum is proposed here. The intrinsic mode functions (IMFs) generated by EEMD can alleviate the problem of mode mixing and approach the reality IMFs. The characteristic frequencies were found in the instantaneous energy density of Hilbert spectrum. The effectiveness of this method was demonstrated by analysis the vibration signals of a rolling bearing with inner-race fault.
J. M. Lu et al., "Fault Diagnoise of Rolling Bearing Based on EEMD and Instantaneous Energy Density Spectrum", Applied Mechanics and Materials, Vols. 97-98, pp. 741-744, 2011