Methods for bearing fault signature extraction

Methods for bearing fault
signature extraction

Band-pass filtering - fast, simple, commonly-used but freq-dependent

Reference-based filtering - adaptive, freq-independent but usu. need extra sensor

Morphological filtering - potential for time-varying application, but not enough research

Spectral kurtosis - Antoni 2006 two papers

Smoothness index SI - Bozchaloi and Liang

Discrete wavelet - Djebala 2008

Adaptive noise cancelling - Habetler 2009 (Wiener filter)

Self-adaptive noise cancellation SANC or ALE - Antoni and Randall 2004 and Shiroishi 1997

Morpho Component analysis - Selesnick 2011

Based on Huang, H. (2018). Methods for Rolling Element Bearing Fault Diagnosis under Constant and Time-varying Rotational Speed Conditions (Ph.D. Thesis, University of Ottawa). http://dx.doi.org/10.20381/ruor-21835

OBSD Oscillatory signal decomposition - Selesnick 2011

click to edit

Reference-based filtering - adaptive, freq-independent but usu. need extra sensor