Citation:
Saad Al-Dossary, R.I. Raja Hamzah, D. Mba, Observations of changes in acoustic emission waveform for varying seeded defect
sizes in a rolling element bearing, Applied Acoustics, Volume 70, Issue 1, January 2009, Pages 58–81.
Abstract:
The investigation reported in this paper was centered on the application of the
acoustic emissions (AE) technology for characterising the defect sizes on a
radially loaded bearing. An experimental test-rig was designed such that defects
of varying sizes could be seeded onto the outer and inner races of a test
bearing. The aim of this investigation was to correlate defect size with
specific AE parameters and to ascertain the relationship between the duration of
AE transient bursts associated with seeded defects to the actual geometric size
of the defect. In addition, the use of AE to detect inner race defects was
explored particularly as this known to be fraught with difficulty. It is
concluded that the geometric defect size of outer race defects can be determined
from the AE waveform.