Ordinary Shear Thinning Behavior and Its Effect Upon EHL Film Thickness

摘要

Measurements are presented of ordinary shear thinning behavior of liquid lubricants using laboratory rheometers. Flow curves are constructed and compared with theoretical models. The data can be fitted to the well-known Carreau equation. This model is used to calculate rolling/sliding film thickness under EHD line contact for conditions typical of tribological contacts. This work provides useful insights regarding the ordinary shear thinning behavior of liquids typical of lubricants, and its impact on EHD film forming behavior of lubricants.