Stribeck Curve for lubricant comparison
I need to plot a Stribeck curve for a lubricant over all regimes of lubrication. I have access to a pin/ball on disk machine. However, in most literature pin on disk is performed only for Stribeck curve plotting of boundary/mixed lubrication regimes. Is there a particular reason for not being considered for EHD and HD regimes? The possible sliding speeds are in the range of 0.75m/s to 7.5m/s. The range of load is 5-200N(6 mm pin diameter).
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NANOVEAThis might help, to study you will need precise slow speed.
Stribeck Curve Analysis Using Tribometer
![[IMG]](proxy.php?image=http%3A%2F%2Fwww.nanovea.com%2FImages%2Flubricationtesting.jpg&hash=920d6361a75515e47c0bc07706f1d337)
When lubrication is applied to reduce the wear/friction of moving surfaces an increasing load can shift the lubrication from several regimes such as Boundary, Mixed and Hydrodynamic Lubrication. The fluid viscosity, the load that is carried by the two surfaces and the speed that the two surfaces move relative to each other combine to determine the thickness of the fluid film. It is this process that determines the lubrication regime. How the regimes react to friction is shown in what is called a Stribeck curve. To evaluate lubricants, and their reaction with applications the Stribeck Curve can be identified using a Pin On Disk Tribometer.
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