Citation:
Chee Keong Tan and David Mba, Identification of the acoustic emission source
during a comparative study on diagnosis of a spur gearbox, Tribology
International, Volume 38, Issue 5, May 2005, Pages 469-480.
Abstract:
Condition monitoring of gears with vibration analysis is well established whilst
the application of acoustic emission (AE) to gear defect diagnosis and
monitoring is still in its infancy. This paper details results of an
experimental programme to ascertain and validate the applicability of AE to
seeded gear defect identification. Furthermore, comparisons are made to
vibration diagnosis. As a direct consequence of the experimental programme, the
relationship between temperature, oil film thickness and AE activity were
investigated. It is shown that similar to the lubricant film thickness between
non-conforming surfaces under isothermal conditions, AE activity is not
influenced by load. Limitations of applying AE to seeded defect identification
are presented and it is concluded that the source of AE activity is attributed
to asperity contact.