Acoustic emission (AE) technology applied to condition monitoring is gaining acceptance as a useful complimentary tool. This paper demonstrates the use of AE measurements to detect, monitor the growth and locate natural defect initiation and propagation in a conventional rolling element bearing. To undertake this task a special purpose test-rig was built to allow for accelerated natural degradation of a bearing race. It is concluded that crack initiation and its subsequent propagation is detectable with AE technology. The paper also investigates the source characterisation of AE signals associated with a defective bearing whilst in operation.
|Number of pages||12|
|Journal||Engineering Failure Analysis|
|Publication status||Published - Jan 2009|
- Acoustic emission
- Condition monitoring
- Natural degradation
- Thrust bearings