Abstract
A mathematical model for the hydrodynamic lubrication of finite slider bearings with velocity slip and couple stress lubricants is presented. A numerical solution for the mathematical model using finite element scheme is obtained using four node linearly interpolated quadrilateral elements. Stiffness integrals obtained from the weak form of the governing equations were solved using Gauss Quadrature to obtain a finite number of stiffness matrices. The global system of equations was obtained for the bearing and solved using Gauss Seidel iterative scheme. The converged pressure solution was used to obtain the load capacity of the bearing. Numerical experiments reveal the existence of an optimum velocity slip for which maximum benefit is obtained for the slider bearing in terms of bearing load. Increase in the slip parameter beyond this optimum value was shown not to augment the bearing load. Computations put forth also affirm that the bearing load is augmented with increase in couple stress parameter. An optimal film thickness ratio was also obtained for which load capacity is maximized with or without the application of slip to the bearing surfaces.
Publisher
Trans Tech Publications, Ltd.
Reference15 articles.
1. A. Fortier, Numerical Simulation of Hydrodynamic Bearing with Engineered Slip-no slip conditions; Unpublished Msc thesis Department of Mechanical Engineering, Georgia Institute of Technology Atlanta. (2004).
2. R.R. Rao, Effects of Velocity-Slip and Viscosity Variation in Journal Bearing under cavitation Condition, Journal of theoretical and applied Mechanics Vol. 36, (2007) 431 - 445.
3. R.R. Rao and K.R. Prasad, Effects of velocity slip and viscosity variation on journal bearings, ANZIAM Journal, Vol. 46, (2004), 143 - 155.
4. R.R. Rao, and K.R. Prasad, Effects of velocity slip and viscosity variation for lubrication of roller bearings, Defence Science Journal, vol. 53, issue 8, (2003) 431 - 442.
5. G.S. Beavers and D.D. Joseph, Boundary condition at a naturally permeable wall, Journal of Fluid Mechanics, vol. 30, (1967), 197-207.
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献