On the influence of lubricant properties on the dynamics of two-dimensional journal bearings

In dynamically loaded journal bearings it is important to predict and asses s the performance of lubricants within the bearing with respect to friction , wear and load bearing capacity over a wide range of operating conditions. In this paper, a mathematical model is described which allows for a system atic study of the effects of shear-thinning, pressure-thickening and temper ature-thinning viscosity on the dynamics and stability of a journal bearing . It is also shown that the thermal conductivity of the bearing can have a major effect on the minimum oil film thickness attained in the bearing. (C) 2000 Elsevier Science B.V. All rights reserved.