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Starved elastohydrodynamic lubricated elliptical contactsA theoretical study of the influence of lubricant starvation on film thickness and pressure in hard and soft elliptical elastohydrodynamic contacts is presented. From the results for both hard and soft EHL contacts a simple and important dimensionless inlet boundary distance is specified. This inlet boundary defines whether a fully flooded or a starved condition exists in the contact. Furthermore it is found that the film thickness for a starved condition could be written in dimensionless terms as a function of the inlet distance parameter and the film thickness for a fully flooded condition. Contour plots of pressure and film thickness in and around the contact are shown for fully flooded and starved conditions. The theoretical findings are compared directly with results obtained experimentally.
Document ID
19800019198
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hamrock, B. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1980
Subject Category
Mechanical Engineering
Report/Patent Number
NASA-TM-81549
E-507
Accession Number
80N27699
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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