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Abstract
As previously reported, an experimental apparatus has been built that allows direct measurement of the journal position in a journal bearing. This paper presents a series of measurements taken with this apparatus using a commercially representative VI (Viscosity Index) improved lubricant and a high molecular weight extremely shear-dependent non-Newtonian lubricant. Measurements are presented for both steady loads and for squeeze flow loads.
Analysis of the measurements show that the oil film thickness in the hydrodynamic regime of lubrication with non-Newtonian oils is dominated by the shear-dependent viscosity.
Presented at the 46th Annual Meeting in Montreal, Quebec, Canada April 29–May 2, 1991
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Presented at the 46th Annual Meeting in Montreal, Quebec, Canada April 29–May 2, 1991