Accession Number : ADA336053
Title : Deformation Behavior of Thin Lubricant Films at Elevated Pressure
Descriptive Note : Final rept. 01 Feb 96-31 Jan 98
Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OFMECHANICAL ENGINEERING
Personal Author(s) : Bair, Scott
PDF Url : ADA336053
Report Date : JAN 1998
Pagination or Media Count : 46
Abstract : If care is taken to avoid viscous heating, the results from rheometers may be used to generate empirical rate equations which are useful in modelling EHD traction. However, an analytical treatment of piezo-viscous liquids reveals the Reynolds equation adequately captures the mechanics of the piezo-viscous liquid only when the shear stress is much less than the reciprocal of the pressure viscosity coefficient. Otherwise the cross film pressure gradient cannot be neglected and secondary flows result.
Descriptors : *DEFORMATION, *THIN FILMS, *HIGH PRESSURE, *LUBRICATING FILMS, SHEAR STRESSES, TRACTION, HEATING, VISCOSITY, REYNOLDS NUMBER, RHEOMETERS, SECONDARY FLOW.
Subject Categories : Lubricants and Hydraulic Fluids
Distribution Statement : APPROVED FOR PUBLIC RELEASE