Abstract
The pressure-viscosity coefficient of a traction fluid is determined by fitting calculation results on accurate film thickness measurements, obtained at different speeds, loads, and temperatures. Through experiments, covering a range of 5.6 <M <12000, 2.1 <L <17.5, film thickness values are calculated using a numerical method and approximation formulas from twelve models. It is concluded that, to assess the pressure-viscosity coefficient of the fluid, the Chittenden et al. approximation formula applied to circular contacts is the best choice, having an inaccuracy in between (-15%, +11%). This expression has been used far outsides the regime of the numerical data where it was based upon.
| Original language | English |
|---|---|
| Pages (from-to) | 449-464 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology |
| Volume | 225 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2011 |
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