Analysis and Design of Gas-Lubricated Tilting-Pad Journal Bearings for Miniature Cryogenic Turbomachinery

Abstract

Extensive steady-state and dynamic design information was generated for tilting pad journal bearings with emphasis on miniature cryogenic turbomachinery applications. Coverage includes bearing length to diameter ratios of from 0.5 to 2.0 and values of the compressibility parameter from 1.5 to 20. Information was put into a format for use by design engineers and a separate section discusses design procedures plus practical considerations. An experimental program was completed, using room temperature air as the lubricant, which substantiated the analytical information. Variable grid computerized analysis was required to avoid numerical problems at high values of the compressibility parameter. These methods proved very successful and represent a significant improvement over constant grid techniques.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1970
Accession Number
AD0874361

Entities

People

  • Richard Colsher
  • Wilbur Shapiro

Organizations

  • Franklin Institute

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Bearings
  • Computational Science
  • Computer Programs
  • Computers
  • Curve Fitting
  • Diameters
  • Engineers
  • Friction
  • Instrumentation
  • Journal Bearings
  • Lubricants
  • Measurement
  • Pressure Distribution
  • Production
  • Transient Response Analysis
  • Turbomachinery

Readers

  • Combustion and Flow Dynamics.
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).