Abstract:
A simulating experimental device for journal bearings of engines
is established by use of the mechanism of ultrasonic vibration.
This device can make the pressure insied the oil film changed at
ultrasonic frequency, which enable the specimen surface to be
damaged by cavitation erosion in a comparatively short time.
Connecting with the bubbly oil-producing device, this rig can
investigate the influence of bubbly oil in the cavitation
erosion. Through detailed experimental research it is found that
the bubbly oil decreases the cavitation erosion in journal
bearings of engines. This result is analyzed reasonably from
mechanism of cavitation erosion.
Key words: Cavitation erosion Bubbly oil Journal bearing Engine
*
Selected
from Proceedings of 2000 the First International Conference on
Mechanical Engineering; revised manuscript June 8, 2001
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