Ion Pumped Vacuum Friction Test.
Abstract
A set of boundary layer friction data was generated in a typical ion pumped vacuum facility for comparison with an identical set or orbital friction data. The test materials, run profiles, and experiment elements were identical to those used in previous AFRPL In-Space Friction Tests and Molecular Sink Test. Comparison of the results from these tests shows excellent agreement between the orbital, ion pumped 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 studied. This report presents the experimental results of this study and reviews these in light of the satellite data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1970
- Accession Number
- AD0877670
Entities
People
- Robert L. Hammel
Organizations
- TRW Inc.