The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Research on Elastohydrodynamic Lubrication on High-Speed Rolling-Sliding Contacts

Report Number: AFAPL TR 71-54
Author: Smith, Richard L.
Author: Gupta, Pradeep K..
Author: McGrew, John M.
Author: Walowit, Jed A.
Corporate Author: Mechanical Technology, Inc. Latham, New York
Laboratory: Air Force Aero Propulsion Laboratory
Date of Publication: 1970-12
Pages: 176
Contract: F33615-69-C-1305
Project: 3048
Task: 304806
AD Number: AD0737374

A rolling disc apparatus has been designed and built. Tractions between two crown discs lubricated with 5P4E polyphenyl ether have been measured as function of slip rate over a range of Hertz pressure (80,000-140,000 psi), rolling speeds (900-1820 ips), and temperatures (175 F - 215 F). Comparisons are made between measured tractions, Battelle data, and various analytical predictions. The MTI data agree qualitatively with Battelle measurements except that MTI data are found to be relatively insensitive to temperature whereas Battelle reports considerable temperature sensitivity. A semi-empirical mathematical model has been put forth to represent traction measurements.

A computer program for analyzing interactions under partial elastohydrodynamic conditions has been written and a listing is contained in this report.

Lockheed Martin Missiles & Fire Control
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