Comparisons of Experimental and Theoretical Dynamic Rotor-Bearing Behavior Using Gas Lubrication.

Abstract

The report presents the results of an investigation into the adequacy of presently available theory in predicting the dynamic behavior of a rotor supported in hydrostatic and hydrodynamic gas lubricated journal bearings. Measurements of critical speeds, threshold of instability speeds, gas flow rates, and rotor whirl frequencies for several rotors supported in hydrostatic and hydrodynamic journal bearings were made and compared to theoretical predictions. Variables investigated were bearing load, bearing supply pressure, bearing and gas temperature, and type of bearing supply gas. Good agreement between the experimental and theoretical results was obtained. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1971
Accession Number
AD0732211

Entities

People

  • Ronald D. Dayton

Organizations

  • MRIGlobal

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Bearings
  • Flow
  • Flow Rate
  • Frequency
  • Gas Flow
  • Instability
  • Journal Bearings
  • Measurement

Fields of Study

  • Physics

Readers

  • Theoretical Analysis.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).