Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism

Abstract

A life test of lubricants for the R2 shaft bearings of a spacecraft oscillating scanner mechanism was performed under simulated orbital conditions. The lubricant originally used in the application, a chloroarylalkylsiloxane (CAS) oil, and a linear perfluoropolyalkylether (PEPE) oil failed in less than 2500 h or operation. A poly-alpha-olefin (PAO) oil has been running for more than 11,000 h without any indication of lubricant or system degradation. The performances of the oils are discussed in terms of the boundary lubrication conditions of the test. Keywords: Degradation, Lubricants, Oscillating spacecraft mechanism, Perfluoropolyalkylether wear tests.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1990
Accession Number
ADA229445

Entities

People

  • Chris G. Kalogeras
  • Daniel H. Marten
  • David J. Carre
  • Paul D. Fleischauer

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Alkenes
  • Artificial Satellites
  • Ball Bearings
  • Boundaries
  • Chemical Compounds
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Detectors
  • Lubrication
  • Materials
  • Materials Science
  • Mechanics
  • Physics Laboratories
  • Space Systems
  • Spacecraft
  • Test Facilities

Fields of Study

  • Engineering

Readers

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

Technology Areas

  • Space
  • Space - Hall-Effect Thruster