Open AccessDESIGN MODEL OF DOUBLE-LAYER POROUS FINITE-LENGTH BEARING WITH REGARD TO ANISOTROPY OF POROUS LAYERS AND NONLINEAR FACTORS
Author(s) -
Akhmat Chokayevich Erkenov,
М. А. Мукутадзе,
Victoria Sergeyevovgorodova,
Tatyana Sergeyevna Сherkasova
Publication year - 2014
Publication title -
vestnik donskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 1992-6006
pISSN - 1992-5980
DOI - 10.12737/3518
Subject(s) - nonlinear system , isotropy , bearing (navigation) , porosity , porous medium , anisotropy , mechanics , materials science , eccentricity (behavior) , permeability (electromagnetism) , composite material , physics , chemistry , optics , quantum mechanics , biochemistry , astronomy , membrane , political science , law
The asymptotic solution to the problem on the hydrodynamic calculation of the porous double - layer r a dial finite length bearing is provided on the eccentricity ratio levels. The solution is based on full nonlinear Navier — Stokes equations, and on Darcy’s equation. The distinction of the suggested design model is that it allows for the perme ability anisotropy of the porous layers, and availability of a greasing source. A case when greasing forcibly gets thro ugh pores of an external porous layer is considered. A velocity and pressure field in the lubricant and porous layers is found. As a result, analytical expressions for the main performance data of the bearing ar e obtained. The effect of the permeability an isotropy of porous layers, nonlinear factors, as well as the influence of a greasing source on the basic performance chara c teristics of the bearing are evaluated.