Full Content is available to subscribers

Subscribe/Learn More  >

Effects of Gears, Bearings, and Housings on Gearbox Transmission Shafting Resonances

[+] Author Affiliations
Stephen A. Hambric, Micah R. Shepherd, Robert L. Campbell

Applied Research Lab, Penn State University, State College, PA

Paper No. IMECE2010-38980, pp. 229-238; 10 pages
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 13: Sound, Vibration and Design
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4450-2
  • Copyright © 2010 by ASME


Gear noise, comprised of tones centered around gear meshing frequencies, is transmitted through driveshafts, bearings, and transmission housings. Gear noise transmission is amplified, sometimes strongly, by modes of vibration of the shafting. The shafts of the input and output gears vibrate like beams at low to mid frequencies. The resonance frequencies and vibration patterns of these beam-like modes depend strongly on the shaft boundary conditions, which in turn depend on the impedances of the bearings, and of the transmission housing. In this paper, we present simulated and measured modes of the input and output shafts of a single stage spur gear system mounted in a rectangular metal gearbox. The impedances of the gears, bearings, and housing are added in sequence and the effects on the fundamental mode shapes and frequencies are shown. The bearing impedances have the largest effects on the shafting modes, increasing the resonance frequencies significantly, along with spreading the frequencies of similar mode types. Including the housing impedances at the bearing locations reduces slightly the spread of shaft mode frequencies.

Copyright © 2010 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In