| Abstract | This report discusses a series of gear seeded fault trials that were carried out to examine the effectiveness of different techniques used for gear fault detection. The experimental program was carried out using a high-speed gear fatigue test rig operated by Pratt and Whitney Canada. A series of seeded fault trials were run under controlled conditions, and the vibration characteristics of several fault conditions were studied. Both 20-tooth normal-profile and 80-tooth thin-profile spur gears were used in these tests. The faults, both natural and implanted, included scoring, spalling, pitting, broken teeth, and gear imbalance. The vibration data were analyzed using a Stewart Hughes Mechanical Systems Diagnostic Analyzer (MSDA) and SGAV gear analysis software package, in addition to several other vibration-level parameters. This report discusses the results of the analysis of the seeded fault data. |
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