Experimental study of the contribution of gear tooth finishing processes to friction noise

Micro geometry of a gear tooth influences the contact durability and wear performance. In this paper, different gear tooth flanks have been manufactured by different finishing processes, which were then characterized using multiscale surface analysis, based on wavelet transform. The friction noise w...

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Bibliographic Details
Published in:Tribology international 2017-11, Vol.115, p.70-77
Main Authors: Jolivet, S., Mezghani, S., El Mansori, M., Vargiolu, R., Zahouani, H.
Format: Article
Language:English
Subjects:
Acoustic noise
Acoustics
Chemical and Process Engineering
Destructive testing
Dry and lubricated contact
Engineering Sciences
Finishing processes
Friction
Friction noise
Gear teeth
Gears
Meshing
Multiscale analysis
Multiscale surface characterization
Nondestructive testing
Surface analysis (chemical)
Tribology
Wavelet analysis
Wavelet transforms
Wear resistance
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Summary:Micro geometry of a gear tooth influences the contact durability and wear performance. In this paper, different gear tooth flanks have been manufactured by different finishing processes, which were then characterized using multiscale surface analysis, based on wavelet transform. The friction noise was then measured before and after meshing in dry and lubricated conditions, to quantify the acoustic performance of the surfaces. To accomplish this objective, a new non-destructive sensory measurement technique was developed to characterize the friction noise generated by teeth flank surface. Results show the ability of the new method to discriminate functional behavior of different surfaces as well as give possible explanations as to the contribution of tooth flank asperities during the meshing on the gear in terms of gear noise performances. •Influence of tooth flanks surface scales on gear noise is investigated.•New non-destructive sensory measurement technique was developed to characterize friction noise.•Friction noise was measured before and after testing the gears.•Results show that this new method is suited to discriminate surfaces functionally.•Possible explanation of the contribution of tooth flank surface asperities on gear noise is given.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2017.05.004