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Isothermal elastohydrodynamic lubrication of point contacts. 1: Theoretical formulationThe isothermal elastohydrodynamic lubrication (EHL) of a point contact was analyzed numerically by simultaneously solving the elasticity and Reynolds equations. In the elasticity analysis the contact zone was divided into equal rectangular areas, and it was assumed that a uniform pressure was applied over each area. In the numerical analysis of the Reynolds equation, a phi analysis (where phi is equal to the pressure times the film thickness of the 3/2 power) was used to help the relaxation process. The EHL point contact analysis is applicable for the entire range of elliptical parameters and is valid for any combination of rolling and sliding within the contact.
Document ID
19750022492
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Hamrock, B. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Dowson, D.
(Leeds Univ.)
Date Acquired
September 3, 2013
Publication Date
August 1, 1975
Subject Category
Mechanical Engineering
Report/Patent Number
NASA-TN-D-8049
E-8295
Accession Number
75N30565
Funding Number(s)
PROJECT: RTOP 505-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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