Effect of lubricant inertia in bearings with a non-Newtonian lubricant

TLDR: In this paper, the inertia effects in externally pressurized and squeeze film bearings with lubricants obeying a power law were considered. And they found that the inertia forces decrease the load capacity of the externally pressurised bearing with a given flow rate and the inertia effect increases with the flow behaviour index.

Abstract: The inertia effects in externally pressurized and squeeze film bearings with lubricants obeying a power law are considered. It is found that the inertia forces decrease the load capacity of the externally pressurized bearing with a given flow rate and the inertia effect increases with the flow behaviour index. At a given feeding pressure, on the other hand, the inertia increases or decreases the load capacity when the flow behaviour index is smaller than or greater than 3, respectively. For squeeze films between circular plates and rectangular plates, the rate of squeeze is slowed down by the inertia and the inertia effect is larger in dilatant lubricants than in pseudoplastic lubricants.