Qiang Li, Roman Pohrt

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A new model of mixed lubrication is proposed in the frame of the Method of Dimensionality Reduction (MDR). In this model the dynamic lubricated rolling contact between rough surfaces is simulated based on the results from elastohydrodynamic lubrication (EHL). In order to account for the break-up of the additional boundary layer on a local micro contact area, a supplemental criterion is imposed. For comparison, a twin-disc test rig is set up to measure the electrical resistance between two lubricated rolling surfaces under different normal forces, rotation speeds and temperatures. We investigated the probability of boundary layer breakthrough for both experiment and simulation and found good agreement.

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ISSN: 2335-0164 (Online)

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