Molecular Sink Vacuum Friction Test.

Abstract

A set of boundary layer friction data was generated in the Jet Propulsion Laboratory Molecular Sink Vacuum Facility for comparison with an identical set of orbital friction data. The test materials, run profiles, and experiment elements were identical to those used in previous AFRPL In-Space Friction Tests. Comparison of the results from these two tests shows excellent agreement between the orbital and the Molecular Sink results. This is in contrast to other oil pumped ultrahigh vacuum tests which showed systematically lower friction for eight of sixteen material couples studies. This report presents the experimental results of this study and reviews these in light of the satellite data.

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1969
Accession Number
AD0505406

Entities

People

  • Robert L. Hammel

Organizations

  • TRW Inc.

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Agreements
  • Artificial Satellites
  • Boundaries
  • Boundary Layer
  • Buildings And Structures
  • Contrast
  • Friction
  • Jet Propulsion
  • Layers
  • Materials
  • Research Facilities
  • Ultrahigh Vacuum
  • Vacuum

Fields of Study

  • Physics

Readers

  • Aerospace Propulsion Engineering.
  • Combustion and Flow Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Space
  • Space - Hall-Effect Thruster