Rolling Element Bearing and Lubricant Technology Program. Part I. Prediction of Torque in DMA Bearings.

Abstract

Analytical simulations of the dynamic performance of a DMA ball bearing are obtained under a range of operting conditions. The predicted torques with Coulomb type friction characteristics seem to be within the range of the experimentally observed torque values. Also there is a general agreement between the observed torque dependence on speed and the trends predicted by the analytical simulations. A systematic parametric study over the various possible traction models covering both elastohydrodynamic and boundary friction regimes suggests that the test DMA bearing works more in the boundary friction domain or perhaps a mixed regime. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA056398

Entities

People

  • Pradeep K. Gupta

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Ball Bearings
  • Bearings
  • Boundary Layer
  • Computer Programs
  • Dynamics
  • Experimental Data
  • Frequency
  • Friction
  • Instability
  • Lubricants
  • Lubrication
  • Materials
  • Materials Laboratories
  • Measurement
  • Security

Fields of Study

  • Engineering

Readers

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