Abstract—The objective of this paper is to predict the performance of rotor bearing system lubricated with couple stress fluid accounting the cross effect of velocities. Modified Reynold’s equation and the Stokes’ Constitutive equation have been obtained. Narrow bearing approximations have been used to obtain the solutions in the closed form. The effects of couple stress, frame rotation and the Viscosity-density effects have been obtained numerically. The results so obtained are consistent with the physical situation of the problem.

Index Terms—Couple Stress, Friction, Hydrodynamicm Journal Bearing, Thin Film

Cite: U P Singh and B K Singh, "Effect of Small Rotation on the Performance of Short Journal Bearing Lubricated with Couple Stress Fluid," International Journal of Mechanical Engineering and Robotics Research, Vol. 3, No. 1, pp. 392-402, January 2014.