A Model to Calculate Evaporative Oil Loss in Spacecraft Mechanisms,

Abstract

Calculations of oil loss from ball bearings in space are generally limited by the oil vapor pressure data base used in the calculations. We have developed a computer model that ties oil loss behavior of linear hydrocarbons to empirical oil loss measurements. This results in more accurate determination of evaporative oil loss. Two oils are modeled. The application of the model for the oils to actual mechanisms is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1998
Accession Number
ADA354744

Entities

People

  • D. J. Carre
  • P. A. Bertrand

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Acyclic Hydrocarbons
  • Air Force
  • Artificial Satellites
  • Boiling Point
  • Computer Programs
  • Computers
  • Detectors
  • Digital Information
  • High Temperature
  • Hydrocarbons
  • Materials
  • Measurement
  • Molecular Weight
  • Petroleum
  • Spacecraft
  • Time Intervals
  • Vapor Pressure

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Petroleum Engineering
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster