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Lubricant rheology applied to elastohydrodynamic lubrication

Author
Sanborn, D. M.
Published
May 1, 1977.
Physical Description
1 electronic document
Additional Creators
Winer, W. O.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Viscosity measurements in a high pressure rheometer, elastohydrodynamic simulator studies (including the development of a temperature measuring technique), and analytical fluid modeling for elastohydrodynamic contacts are described. The more recent research which is described concerns infrared temperature measurements in elastohydrodynamic contacts and the exploration of the glassy state of lubricants. A correlation, of engineering significance, was made between transient surface temperature measurements and surface roughness profiles. Measurements of glass transitions of lubricants and the study of the effect of rate processes on materials lead to the conclusion that typical lubricants go into the glassy state as they pass through the contact region of typical elastohydrodynamic contacts.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19770021360.
Accession ID: 77N28304.
NASA-CR-2837.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15731670