Detecting cracks in the tooth root of gears [J] , Engineering Failure Analysis, 2007, 14 : 1466-1475.A. Belsak, J. Flasker, Detecting cracks in the tooth root of gears, Eng. Fail. Anal. 14 (2007) 1466-1475.Ales Belsak,Joze Flasker.Detecting cracks in the tooth root of gears....
The ability to detect the onset of breakdown of the elements of a roller bearing, such as the onset of pitting or cracks in the bearing races or rolling elements is fundamental to practicing predictive maintenance on machinery and avoiding catastrophic machine failure. Roller bearings, other anti-...
A crack in the tooth root, which often results in failure of gear unit operation, is the least desirable among damages and faults, which can cause problems in gear unit operation. A fatigue crack in the tooth root brings about important changes in tooth stiffness, whereas other faults are ...
The impacts that a crack in a single-stage gear unit has on vibrations are dealt with. A fatigue crack in the tooth root brings about significant changes in tooth stiffness. Changes of other dynamic parameters are more associated with other faults. To analyze a non-stationary signal, time ...
By this procedure it is possible to evaluate the severity of impacts occurring between the teeth of unloaded gears, by examining the root mean square value of the signal. The Hilbert transform is largely adopted in the detection of gear defects, such as tooth cracks, but it has not yet ...
Typical parameters extracted from the transient signals are root mean square value, frequency domain characteristics, energy, spectral kurtosis, and peak-to-peak vibration level. Due to the difference in the frequency bandwidth, AE method is more sensitive to micro cracks as compared to the ...