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Prevention of resonance oscillations in gear mechanisms using non-circular gears
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2017 (English)In: Mechanism and machine theory, ISSN 0094-114X, E-ISSN 1873-3999, Vol. 114, 1-10 p.Article in journal (Refereed) Published
Abstract [en]

One of the main disadvantages of gear mechanisms is the occurrence of noise and vibrations. This study investigated the applicability of non-circular gears for preventing resonance oscillations in gear mechanisms. The influence of a small deviation of the gear centrodes from the nominal circles on kinematic and oscillatory characteristics was analysed. It was shown that a larger deviation results in a smaller resonance amplitude due to mesh frequency variability and simultaneously in higher additional dynamic loads on the mechanism. The shape of the gear centrodes was determined which provides a relatively small resonance amplitude with minimum additional dynamic loads. A mechanical device was developed to enable cutting of slightly non-circular gears on a hobbing machine without numerical control.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 114, 1-10 p.
Keyword [en]
Non-circular gear, Gear pair, Variable gear ratio, Gear noise, Gear vibrations, Resonance amplitude
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-209277DOI: 10.1016/j.mechmachtheory.2017.03.010ISI: 000402354800001ScopusID: 2-s2.0-85016457174OAI: oai:DiVA.org:kth-209277DiVA: diva2:1111698
Note

QC 20170619

Available from: 2017-06-19 Created: 2017-06-19 Last updated: 2017-06-19Bibliographically approved

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Olofsson, Ulf
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Machine Design (Dept.)
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