Evaluation of 100 mm Bore Bearings after Accelerated Testing in a Simulated Space Environment.

Abstract

The Despin Mechanical Assembly (DMA) is that mechanism by which satellite antenna platforms are despun with respect to the remainder of the vehicle in order to permit data transfer as well as navigational command and control. A major component of this assembly is a set of DMA bearings. Because of the extended duration of most satellite missions, the DMA itself as well as the individual components undergo rigorous life and accelerated life testing. On occasion, a test article fails to meet the desired or anticipated performance level. This report describes the analysis of a set of specially fabricated DMA type bearings which experienced such a failure during an accelerated life test. Physical, chemical, and pictorial evidence is presented to support the postulated cause of failure. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1979
Accession Number
ADA074527

Entities

People

  • Wayne E. Ward

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Artificial Satellites
  • Assembly
  • Contracts
  • Elastomers
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Films
  • Infrared Spectra
  • Lubricants
  • Materials
  • Materials Laboratories
  • Photographs
  • Photography
  • Test And Evaluation
  • Test Methods
  • Vehicles

Readers

  • Software Engineering
  • Space Exploration and Orbital Mechanics.
  • Theoretical Analysis.

Technology Areas

  • Fully Networked C3
  • Fully Networked C3 - Command and Control
  • Space