Accession Number:

ADA288906

Title:

Deformation Behavior of Thin Lubricant Films at Elevated Pressure.

Descriptive Note:

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OF MECHANICAL ENGINEERING

Personal Author(s):

• Bair, Scott
• Qureshi, F.
• Lee, Y. K.
• Winer, W. O.

Report Date:

1994-12-01

Pagination or Media Count:

99.0

Abstract:

The elastohydrodynamic EHD regime of lubrication is responsible for the generation of a protective film and the transfer of shear across concentrated contacts in many machine elements including bearings, cams and gears. It is now understood that small scale EFiD plays a major role in the boundary lubrication of rough surfaces. Many high pressure metal working operations share the pressure and kinematics of elastohydrodynamics. A complete solution of the EHD problem, however, requires a thorough knowledge of the lubricant constitutive behavior and the attending properties as flinctions of temperature and pressure. The Newtonian assumption alone is inadequate.

Descriptors:

• *LUBRICATING FILMS
• DEFORMATION
• SURFACE ROUGHNESS
• HIGH PRESSURE
• BOUNDARIES
• SHEAR STRESSES
• RHEOLOGY
• FRICTION
• NONNEWTONIAN FLUIDS
• SLIP FLOW

Subject Categories:

• Lubricants and Hydraulic Fluids

Distribution Statement:

APPROVED FOR PUBLIC RELEASE