Robust condition monitoring of rolling element bearings using de-noising and envelope analysis with signal decomposition techniques
This paper proposes a robust condition monitoring methodology for rolling element bearings. It employs an empirical mode decomposition (EMD)-based de-noising technique. It also utilizes discrete wavelet packet transform (DWPT)-based envelope analysis. This paper explores the impact of sub-band signals decomposed by the DWPT technique. The proposed scheme outperforms other conventional methods in MPR values.
condition monitoring rolling element bearings envelope analysis empirical mode decomposition discrete wavelet packet transform acoustic emission