Although “film thickness” and “viscosity” represent two of the most important physical
parameters in lubricated tribological contacts, their in situ measurement in tribosystems is …

The trend toward intelligent monitoring and industry 4.0 has attracted more attention to the
performance of intelligent bearings with integrated sensors. Compared with the standard …

Running on an ultra-thin dynamic oil film, the slipper bearing in an aviation fuel piston pump
is vulnerable to lubrication failure. To improve lubrication performance, the slipper surface is …

As the key support of aviation fuel pumps, journal bearings are operated under extreme
conditions of high temperature, high pressure and low viscosity media, therefore, the broken …

Purpose The purpose of this study is to investigate the application of non-destructive testing
methods in measuring bearing oil film thickness to ensure that bearings are in a normal …

A multicycle focal spot map** method is proposed to design the specific pulse emission
frequency and the recorded pulse number. A great number of successive ultrasonic pulses …

A sensitivity-improved reflection coefficient amplitude method for determining wide-range
lubricating oil film thickness is proposed based on partial reflection waves, which are …

Sliding bearings, serving as critical supporting components in rotating machinery, often work
by riding on an ultra-thin oil film. The rupture of this oil film can cause wear of the soft coating …

Focusing on the difficulty and inaccuracy of separating reflected waves from overlap**
echoes caused by coating when measuring the oil film thickness of coated sliding bearings …

Acoustic impedance is an important property used to interpret acoustic reflection
measurements in tests to determine oil film thickness, a critical parameter dictating efficiency …