Citation:
Chee Keong Tan and David Mba, Limitation of Acoustic Emission for Identifying
Seeded Defects in Gearboxes, Journal of Nondestructive Evauation, Vol. 24, No.
1, March 2005, pp 11-28.
Abstract:
Acoustic Emissions (AE) is gaining ground as a Nonestructive Technique (NDT) for
health diagnosis on rotating machinery. Vast opportunities exist for development
of the AE technique on various forms of rotating machinery, including gearboxes.
This paper reviews recent developments in application of AE to gear defect
diagnosis. Furthermore, experimental results are presented that examine and
explore the effectiveness of AE for gear defect diagnosis. It is concluded that
application of AE to artificially seeded gear defect detection is fraught with
difficulties, particularly for fault identification. In addition, the viability
of the AE technique for gear defect detection by making observations from
nonrotating components of a machine is called into question. Nevertheless,
guidance is offered on applying the technique for monitoring the natural wear of
gears.