A New Method for Monitoring Gears Surface Failures Using Enhanced Image Registration Approach

Paper #:
  • 2014-01-9003

Published:
  • 2014-09-01
DOI:
  • 10.4271/2014-01-9003
Citation:
Onsy, A., Fouad, M., Shaw, B., and Dansereau, R., "A New Method for Monitoring Gears Surface Failures Using Enhanced Image Registration Approach," SAE Int. J. Aerosp. 7(1):182-189, 2014, doi:10.4271/2014-01-9003.
Pages:
8
Abstract:
In this paper, we present an image registration approach to cope with inter-image illumination changes of arbitrary shape in order to monitor the development of micro-pitting in transmission gears. Traditional image registration approaches do not typically account for inter-image illumination variations that negatively affect the geometric registration precision. Given a set of captured images of gear surface degradation with different exposure times and geometric deformations, the correlation between the resulting aligned images is compared to a reference one. The presented image registration approach is used with an online health monitoring system involving the analysis of vibration, acoustic emission and oil debris to follow the development of micro-pitting in transmission gears. The proposed monitoring system achieves more registration precision compared to competing systems. This paper experimentally validates the system's capabilities to detect early gear defects and reliably identify the gradual development of micro-pitting in gears, so that it could be used in predictive health monitoring (PHM) systems and overcome the disadvantages of the most commonly used methods, such as gear flank profile scanning, replica sample analysis and conventional image analysis.
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