Accession Number:

ADA289963

Title:

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

Descriptive Note:

Technical memo.,

Corporate Author:

ARMY RESEARCH LAB CLEVELAND OH

Personal Author(s):

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

Report Date:

1994-02-01

Pagination or Media Count:

17.0

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.

Descriptors:

• *PRESSURE MEASUREMENT
• *CAVITATION
• *HIGH SPEED PHOTOGRAPHY
• *JOURNAL BEARINGS
• TENSILE STRESS
• FILMS
• OPTICAL DATA
• BUBBLES
• PRESSURE
• DYNAMIC LOADS
• SYNCHRONISM
• OILS
• LUBRICATING FILMS
• UNDERWATER

Subject Categories:

• Machinery and Tools
• Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE