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- Title
Sensitivity of Air-Coupled Ultrasound and Eddy Current Sensors to Bearing Fault Detection.
- Authors
DADOUCHE, AZZEDINE; REZAEI, AIDA; WICKRAMASINGHE, VIRESH; DMOCHOWSKI, WALDEMAR; BIRD, JEFF W.; NITZSCHE, FRED
- Abstract
For decades, vibration and oil analysis have usually been used to detect early bearing faults and track their progression over time. Progress has been seen in condition monitoring through vibration analysis of rolling element bearings using improved sensors and advanced signal processing techniques. In this papa; the authors investigate the use of air-coupled ultrasound and eddy current sensors as diagnostic tools for the detection of bearing faults. A series of experiments was carried out in a laboratory environment: localized defects with different sizes were created intentionally on the test bearing components simulating evolving cracks or other related faults. The resulting data for a constant bearing speed and load have shown that both sensors are capable of detecting different types of defects located on the bearing components. The data from the air-coupled ultrasound and eddy current sensors were also compared with those obtained from an accelerometer. The test method and the processing technique are described and the spectra of the different signals are analyzed and discussed.
- Subjects
BALL bearings; EDDY current testing; FAILURE analysis; SENSITIVITY analysis; DIGITAL signal processing
- Publication
Tribology & Lubrication Technology, 2013, Vol 69, Issue 8, p40
- ISSN
1545-858X
- Publication type
Article