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2 International Journal of Applied Mechanics and Engineering

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Analysis of tilting pads thrust bearings behavior lubricated by power law fluid

Souchet D., Bouyahia F., Hajjam M., El Khlifi M.

International Journal of Applied Mechanics and Engineering

2005

Vol. 10, no spec

297-302

The numerical modeling of non-Newtonian lubricant flows in titling pads thrust bearing is developed to predict some interesting factors in industrial view point. It means parameters such as load, friction and power loss whose evaluation contributes strongly to improve the design and performances of the titling pads thrust bearing. The non-Newtonian rheological model chosen is the power law because of its large domain of use. The dynamic field is described through the resolution of the generalized Reynolds equation and the thermal effects, due to the lubricant shearing, is taken into account through a global thermal balance. The discretisation of equations is made by the finite differences scheme.

Non-Newtonian behavior analysis in lubrication flows

Bouyahia F., EL Khlifi M., Souchet D., Hajjam M.

International Journal of Applied Mechanics and Engineering

2003

Vol. 8, no spec.

121-126

The working characteristics of a three-dimensional slider bearings of different shapes lubricated by a non-newtonian film, modeled as a Generalized Newtonian Fluid, are computed. The rheological models chosen in this study include Herschel-Bulkley, Bingham, power-law and Rabinowisch. The evolution of the pressure and the thermal fields, according to the lubricant characteristics, are presented and discussed. Furthermore, the hydrodynamic load and the friction coefficient are evaluated according to the fluid type and the slider bearings.