Blind deconvolution criterion based on Fourier–Bessel series expansion for rolling element bearing diagnostics

2021 ◽  
pp. 108588
Author(s):  
Elia Soave ◽  
Gianluca D’Elia ◽  
Marco Cocconcelli ◽  
Mattia Battarra
Keyword(s):  
Series Expansion ◽  
Blind Deconvolution ◽  
Rolling Element Bearing ◽  
Bearing Diagnostics ◽  
Rolling Element ◽  
Element Bearing

Advanced Rolling-Element Bearing Diagnostics Based on Cyclic Spectral Analysis

2007 ◽  
Vol 347 ◽  
pp. 265-270
Author(s):  
Jerome Antoni ◽  
Roger Boustany
Keyword(s):  
Background Noise ◽  
Rolling Element Bearing ◽  
Outer Race ◽  
Spectral Signatures ◽  
Bearing Diagnostics ◽  
Rolling Element ◽  
Cyclical Behaviour ◽  
Element Bearing ◽  
Incipient Fault ◽  
Inner Race

Rolling-element bearing vibrations are random cyclostationary, that is they exhibit a cyclical behaviour of their statistical properties while the machine is operating. This property is so symptomatic when an incipient fault develops that it can be efficiently exploited for diagnostics. This paper gives a synthetic but comprehensive discussion about this issue. First, the cyclostationarity of bearing signals is proved from a simple phenomenological model. Once this property is established, the question is then addressed of which spectral quantity can adequately characterise such vibration signals. In this respect, the cyclic coherence - and its multi-dimensional extension in the case of multi-sensors measurements -- is shown to be twice optimal: first to evidence the presence of a fault in high levels of background noise, and second to return a relative measure of its severity. These advantages make it an appealing candidate to be used in adverse industrial environments. The use and interpretation of the proposed tool are then illustrated on actual industrial measurements, and a special attention is paid to describe the typical "cyclic spectral signatures" of inner race, outer race, and rolling-element faults.

ROLLING ELEMENT BEARING DIAGNOSTICS IN RUN-TO-FAILURE LIFETIME TESTING

2001 ◽  
Vol 15 (5) ◽  
pp. 979-993 ◽  
Author(s):  
T. WILLIAMS ◽  
X. RIBADENEIRA ◽  
S. BILLINGTON ◽  
T. KURFESS
Keyword(s):  
Rolling Element Bearing ◽  
Bearing Diagnostics ◽  
Rolling Element ◽  
Lifetime Testing ◽  
Element Bearing
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