Investigating Faulty Gear-Unit Vibration

Aleš Belšak; Jože Flašker

doi:10.4028/www.scientific.net/KEM.452-453.429

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Determination of Fracture Parameters for Non-Standard Wedge Splitting Specimen of Concrete
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Investigating Faulty Gear-Unit Vibration
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Mixed-Mode Fatigue Characteristics of Composite/Metal Interfaces
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On the Crack Initiated from the Bi-Material Notch Tip
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 452-453Investigating Faulty Gear-Unit Vibration

Investigating Faulty Gear-Unit Vibration

Abstract:

A crack in the tooth root is probably the least desirable problem in gear unit operation; it often leads to failure. Signals produced by a gear with a crack in the tooth root, produced through real operating conditions, and signals caused by a faultless gear are used for the analysis. By monitoring vibrations it is possible to detect the presence of a crack. A fatigue crack in the tooth root brings about significant changes in tooth stiffness. Other faults are usually linked with modifications of other dynamic parameters. Time Frequency Analysis tools, e.g. Wavelets Analyses, are used to analyse a non-stationary signal. The wavelet transform is chosen for the analysis. The wavelet function similar to the dynamic reaction of the crack in the tooth root is selected. By means of the methods and the analysis presented in this paper, the reliability of determining modifications in signal vibrations is improved.

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Periodical:

Key Engineering Materials (Volumes 452-453)

Pages:

429-432

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.452-453.429

Citation:

Cite this paper

Online since:

November 2010

Authors:

Aleš Belšak, Jože Flašker

Keywords:

Fatigue Crack, Gear, Vibration, Wavelet Signal Analysis

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