Aleš Belšak (Author), Jože Flašker (Author)

Abstract

A crack in the tooth root is the least desirable damage caused to gear units and it often causes failure of gear unit operation. For fault analyses presented in this article, gear units with real damages or faults produced on the basis of numerical simulations of real operating conditions are used; tests were carried out in a laboratory test plant. Damages in gear units can be identified by monitoring vibrations. The influences of a crack in a single-stage gear unit on produced vibrations are presented. Significant changes in tooth stiffness are caused by a fatigue crack in the tooth root whereas, in relation to other faults, changes of other dynamic parameters are more expressed. Non-stationary signals are analysed, using the family of Time Frequency Analysis tools, which include Wavelets and Joint Time Frequency Analyses.

Keywords

gear unit;vibrations;tooth root;time frequency analysis tool;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 534:621.88
COBISS: 13424918 Link will open in a new window
ISSN: 1742-6596
Views: 727
Downloads: 350
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Other data

Secondary language: Slovenian
Secondary keywords: krmilna enota;vibracije;zobni koren;orodje za analizo časovne frekvence;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 1-6
Volume: ǂVol. ǂ181
Issue: ǂno. ǂ1
Chronology: 2009
DOI: 10.1088/1742-6596/181/1/012090
ID: 10845295