DocumentCode :
1125071
Title :
An amplitude Modulation detector for fault diagnosis in rolling element bearings
Author :
Stack, Jason R. ; Harley, Ronald G. ; Habetler, Thomas G.
Author_Institution :
Signal & Image Process., Naval Surface Warfare Center, Panama City, FL, USA
Volume :
51
Issue :
5
fYear :
2004
Firstpage :
1097
Lastpage :
1102
Abstract :
The purpose of this research is to identify single-point defects in rolling element bearings. These defects produce characteristic fault frequencies that appear in the machine vibration and tend to modulate the machine´s frequencies of mechanical resonance. An amplitude modulation (AM) detector is developed to identify these interactions and detect the bearing fault while it is still in an incipient stage of development (i.e., to detect the instances of AM when the magnitude of the characteristic fault frequency itself is not significant). Use of this detector only requires machine vibration from one sensor and knowledge of the bearing characteristic fault frequencies. Computer simulations as well as machine vibration data from bearings containing outer race faults are used to confirm the proficiency of this proposed technique.
Keywords :
amplitude modulation; condition monitoring; digital simulation; electric machine analysis computing; fault diagnosis; frequency modulation; resonance; rolling bearings; sensors; vibrations; amplitude modulation detector; bearing fault detection; bispectrum; computer simulations; condition monitoring; fault diagnosis; fault frequency; machine frequency modulation; machine vibration; mechanical resonance; rolling element bearings; sensor; single-point defects; Amplitude modulation; Detectors; Fault detection; Fault diagnosis; Frequency modulation; Resonance; Resonant frequency; Rolling bearings; Sensor phenomena and characterization; Vibrations; AM; Amplitude modulation; bearings; bispectrum; condition monitoring; fault diagnosis; mechanical; vibration;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2004.834971
Filename :
1339483
Link To Document :
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