The Preparation of 90 mm and 100 mm Bore Bearings for Performance Evaluation in a Simulated Space Environment.

Abstract

Many past and present satellite systems employ despun antenna platforms to provide for data transfer as well as command and control communications. The mechanism which permits this antenna platform to be despun with respect to the rest of the satellite is called 'DESPIN MECHANICAL ASSEMBLY' or DMA. The heart of this assembly is the DMA bearing. Because this bearing is required to perform precisely over a long period of time, the preparation of this bearing for its mission is of critical importance. This report describes the techniques used to prepare DMA bearings for laboratory investigations which will lead ultimately to the development of accelerated life tests and prediction techniques. The need for careful inspection of bearings as well as the importance of a good physical characterization of the bearing components is discussed. Additionally, a detailed lubrication procedure is presented.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1978
Accession Number
ADA061075

Entities

People

  • Wayne E. Ward

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Artificial Satellites
  • Assembly
  • Barometric Pressure
  • Diameters
  • Failure Mode And Effect Analysis
  • Lubrication
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Measurement
  • Porosity
  • Porous Materials
  • Separators
  • Space Systems
  • Surface Roughness
  • Test And Evaluation

Fields of Study

  • Engineering

Readers

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

Technology Areas

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