Effect of Asperity Interactions on Scuffing.

Abstract

The objective of the investigation reported herein was to determine whether the characteristics of surface asperity interaction can be used to refine predictions of the load at which lubricated surfaces undergoing relative rolling and sliding, will scuff or smear. In this investigation a series of tests were run in a geared roller test machine using three combinations of rolling and sliding velocities, and for each velocity condition, a set of polished and ground rollers. A description of the test method is given in Appendix VIII. The measured surface characteristics were used as input to a simulation model, ASPERSIM, which computes the expected number of micro-contacts and the expected force and area of each. Significance tests showed that the polished specimens had lower average asperity force and average asperity area than the ground specimens and that these values were correspondingly lower for the unscuffed than for the scuffed tests.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1984
Accession Number
ADA146544

Entities

People

  • J. I. Mc Cool

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Acquisition
  • Analysis Of Variance
  • Birds
  • Classification
  • Computer Programs
  • Data Acquisition
  • Data Analysis
  • Failure Mode And Effect Analysis
  • Finishes
  • Friction
  • Geometry
  • Measurement
  • Plastic Explosives
  • Regression Analysis
  • Surface Roughness
  • Test Methods
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).