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RESEARCH PAPERS

New Results in High Pressure and Low Temperature Rheology of Liquid Lubricants for Space Applications

[+] Author and Article Information
P. Prat, P. Vergne

Laboratoire de Mécanique des Contacts, URA CNRS n° 856, I.N.S.A. Bâtiment 113, 20, avenue Albert Einstein, 69621 Villeurbanne Cedex, France

J. Sicre

Centre National d’Etudes Spatiales, Département Mécanismes, 18, avenue Edouard Belin, 31055 Toulouse Cedex, France

J. Tribol 116(3), 629-634 (Jul 01, 1994) (6 pages) doi:10.1115/1.2928893 History: Received June 01, 1993; Revised March 30, 1994; Online June 05, 2008

Abstract

This paper presents a rheological investigation conducted on three lubricants used in space applications under vacuum. Lubricant behavior was determined for representative pressures and temperatures. Relations between standardized methods and space requirements are discussed. Finally, the elastohydrodynamic load-carrying capacity of the three fluids in the Newtonian domain is computed over a wide temperature range and compared to those of two reference base oils.

Copyright © 1994 by The American Society of Mechanical Engineers
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