Static characteristics of a fluid film bearing with TiO sub(2) based nanolubricant using the modified Krieger-Dougherty viscosity model and couple stress model

Static characteristics of a journal bearing operating on TiO sub(2) based nanolubricant is obtained by a variable viscosity approach. The predicted shear viscosities of TiO sub(2) based nanolubricant at different volume fractions and aggregate particle sizes are obtained using modified Krieger-Dougherty model and are found to be in good agreement with experimental shear viscosities. The modified Reynolds equation considers the Krieger-DoughertY viscosities and couple stress effects of TiO sub(2) nanoparticle additives at different volume fractions and particle sizes. Results reveal a significant improvement in load carrying capacity of journal bearing operating on TiO sub(2) based nanolubricant as compared to plain oil without TiO sub(2) nanoparticles.