Analysis of the Lubrication Performance of Bearing with Non-Newtonian Magnetic Fluids with Considering Stress Couple Effect
Chen Chao
Zhang Hong
Abstract：Based on the Reynolds equation considering the stress couple and magnetic field,the numerical analysis of the non-Newtonian magnetic fluid lubricated bearing is carried out.The effects of stress couple parameters,magnetic coefficient on the membrane pressure,load carrying capacity and attitude angle are studied,and then compared with the numerical results of Newtonian fluid.The results show that the stress couple will significantly improve the lubrication performance.The pressure and load carrying capacity will increase with the increase of the stress couple parameters,and the eccentricity is large,the change of pressure and load carrying capacity is obvious with stress couple parameters.With the increase of the magnetic coefficient,the pressure and load carrying capacity increase correspondingly and the attitude angle decreases,and the larger the stress couple parameters,the effect on the pressure and load carrying capacity and attitude angle is more significant,while the initial point of liquid film rupture is shifted to the right and the hole area is reduced.
Keywords：Magnetic fluid bearingStress coupleMagnetic coefficientLubrication performance
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 31-35 )