A Study on the Rotating Machinery Diagnosis with Acoustic Emission Technique

Using acoustic emission technique and application, the diagnosis of each part of bearing that is important element supporting the rotating part is considered in the case of abnormality and normality.

As a result of the experiment, AE signal of normal bearing is the continuous type and in case the flaw exists at the inner ring and outer ring, AE signal is periodic, though some difference of the amplitude.

The diagnosis of the bearing using the change of the AE RMS value is not very valuable.

And the result of frquency analysis is equal to the theoretical value, when each part of the bearing has the flaw.