Simultaneous Pressure Measurement and High-Speed Photography Study of Cavitation in a Dynamically Loaded Journal Bearing.

Abstract

Cavitation of the oil film in a dynamically loaded journal bearing was studied using high-speed photography and pressure measurement simultaneously. Comparison of the visual and pressure data provided considerable insight into the occurrence and nonoccurrence of cavitation. It was found that (1) for the submerged journal bearing, cavitation typically occurred in the form of one bubble with the pressure in the cavitation bubble close to the absolute zero; and (2) for cavitation-producing operating conditions, cavitation did not always occur; with the oil film then supporting a tensile stress.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1994
Accession Number
ADA289963

Entities

People

  • D. C. Sun
  • David E. Brewe
  • Philip B. Abdel

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Bearings
  • Bubbles
  • Cameras
  • Engineers
  • High Speed Photography
  • Journal Bearings
  • Measurement
  • Mechanical Engineering
  • Military Research
  • New York
  • Photographs
  • Photography
  • Pressure Measurement
  • Pressure Transducers
  • Stresses
  • Tensile Stress
  • Three Dimensional

Readers

  • Regression Analysis.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).
  • Underwater engineering and Marine Technology.