Elastohydrodynamic Lubrication of Elliptical Contacts for Materials of Low Elastic Modulus I—Fully Flooded Conjunction

[+] Author and Article Information
Bernard J. Hamrock, Duncan Dowson

NASA, Lewis Research Center, Cleveland, Ohio

J. of Lubrication Tech 100(2), 236-245 (Apr 01, 1978) (10 pages) doi:10.1115/1.3453152 History: Received April 19, 1977; Revised June 08, 1977; Online October 20, 2010


Our earlier studies of elastohydrodynamic lubrication of conjunctions of elliptical form are applied to the particular and interesting situation exhibited by materials of low elastic modulus. By modifying the procedures we outlined in an earlier publication, the influence of the ellipticity parameter k and the dimensionless speed U, load W, and material G parameters on minimum film thickness for these materials has been investigated. The ellipticity parameter was varied from 1 (a ball-on-plate configuration) to 12 (a configuration approaching a line contact). The dimensionless speed and load parameters were varied by 1 order of magnitude. Seventeen different cases were used to generate the following minimum- and central-film-thickness relations:

min = 7.43(1 − 0.85e−0.31k)U0.65W−0.21
c = 7.32(1 − 0.72e−0.28k)U0.64W−0.22
Contour plots are presented that illustrate in detail the pressure distribution and film thickness in the conjunction.

Copyright © 1978 by ASME
Your Session has timed out. Please sign back in to continue.





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 Journal Articles
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