PRELIMINARY STUDIES ON ELASTOHYDRODYNAMIC LUBRICATION CONSIDERING A VISCO-ELASTIC LUBRICANT.

Abstract

Preliminary studies of elastohydrodynamic lubrication considering a visco-elastic lubricant are reported. A numerical solution using a simplified Maxwell model is developed. Results are obtained for a lubricant having a shear modulus up to 500 lb/sq, in. The pressure distributions show absence of sharp peaks which are shown to exist in the elastohydrodynamic theories considering a Newtonian lubricant. The complete stress-deformation relationship is also derived and the validity of the simplified Maxwell model is examined. In addition, a method is described to estimate the shear modulus of a lubricant from measurements of friction between two disks and friction data for two types of lubricants under a wide range of speeds and loads are included. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 13, 1966
Accession Number
AD0481815

Entities

People

  • H. S. Cheng

Tags

DTIC Thesaurus Topics

  • Friction
  • Lubricants
  • Lubrication
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Shear Modulus

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Petroleum Engineering