Computational model of sliding bearing

Introduction. Refined computational models of tribosystems taking into account the dependence of viscosity and permeability of the porous coating on pressure through partial filling of the front gap with lubricant are described. The obtained calculated models allow for a comparative analysis of the newly received and already available results which confirms a great proximity of the new models to the actual one. Materials and Methods. Values of velocities and pressure field are specified on the basis of the liquid lubricant flow equations for the case of a “thin layer” and Darcy equation. The key operating characteristics of the friction bearings are determined in the porous coating on the journal surface. Research Results. A mathematical model of a radial bearing which allows determining velocity fields, pressure, load capacity, and friction force, with account of the dependence on a number of additional factors, is developed on the basis of the numerical analysis. Discussion and Conclusions. The obtained results can be used in the educational process, as well as in the engineering practice of machine-building tribosystems.