Results 111 to 120 of about 88,133 (255)

A system-approach to the elastohydrodynamic lubrication point-contact problem [PDF]

The classical EHL (elastohydrodynamic lubrication) point contact problem is solved using a new system-approach, similar to that introduced by Houpert and Hamrock for the line-contact problem.
Brewe, David E., Lim, Sang Gyu
core   +1 more source

Accuracy and Grid Convergence of the Numerical Solution of the Energy Equation in Fluid Film Lubrication: Application to the 1D Slider

Lubricants, 2018
The present work is focused on the numerical solution of the complete energy equation used in fluid film lubrication. The work was motivated by the fact that the complete energy equation has no analytical solution that can be used for validations.
Silun Zhang, Mohamed-Amine Hassini, Mihai Arghir   +2 more
doaj   +1 more source

Hydrodynamic modelling of hydrostatic magnesium extrusion [PDF]

, 2006
Wilson’s hydrodynamic model of the hydrostatic extrusion process is extended to meet the geometry found on residual billets. The transition from inlet\ud to work zone of the process is not considered sharp as in the model of Wilson but as a rounded edge,
Moodij, E., Rooij, M.B. de, Schipper, D.J.   +2 more
core   +2 more sources

Analysis on Elastohydrodynamic Lubrication in Grease-lubricated Ball Bearings Considering Film Thickness Correction

Jixie chuandong
To study the lubrication characteristics of grease-lubricated rolling ball bearings, such as film thickness and pressure variations in elastohydrodynamic lubrication with elliptical point contact, a numerical analysis model of elastohydrodynamic grease ...
Zhang Weiye, Zhang Chang, Jiang Ziyang, Ni Wenjun, Liao Fuqiang   +4 more
doaj   +2 more sources

Analysis of Elasto-hydrodynamic Lubrication Characteristics of Journal Bearings Under Starved Lubrication

Jixie chuandong
With the gradual increasing of wind turbine power, the advantages of journal bearings in wind turbine gearboxes are gradually prominent. When the lubrication system is blocked or the oil supply is insufficient, the journal bearing will be in the starved ...
Zhao Dongxu, Ni Yanguang, Ma Zikui
doaj  

Effects of elastic ball and coating on pure squeeze EHL motion for constant load with couple stresses using FDM method

MATEC Web of Conferences, 2017
In this paper, an elastic sphere approaching a lubricated elastic coating surface with couple stress lubricant is explored under constant load condition. The finite difference method (FDM), Gaussian elimination, and Gauss-Seidel iteration method are used
Chu Li-Ming, Chang Yuh-Ping, Lin Jaw-Ren
doaj   +1 more source

Influence of couple stress and magnetic fluid on the performance of step slider bearing

International Journal of Applied Mechanics and Engineering
This theoretical investigation delves into the performance of step slider bearings, considering the influence of couple stress and magnetic fluid as the lubricating medium.
Dipali K. Chauhan, JIMIT R. PATEL, G.M. Deheri   +2 more
doaj   +1 more source

Lubrication model of a knee prosthesis, with non newtonian fluid and porous rough material [PDF]

, 2009
Tibial component of knee prostheses, made of ultra high molecular weight polyethylene (UHMWPE), experiences a high degree of wear and may be expected to last twelve years on average.
Berli, Marcelo Eduardo, Campana, Diego Martin, Di Paolo, José, Ubal, Sebastian   +3 more
core  

Qualitative properties of the free-boundary of the Reynolds equation in lubrication

Publicacions Matemàtiques, 1989
The hidrodynamic lubrication of a cylindrical bearing is governed by the Reynolds equation that must be satisfied by the preassure of lubricatiog oil. When cavitation occurs we are carried to an elliptic free-boundary problem where the free-boundary separates the lubricated region from the cavited region.
openaire   +6 more sources

Effect of Surface Roughness on Hydrodynamic Bearings [PDF]

A theoretical analysis on the performance of hydrodynamic oil bearings is made considering surface roughness effect. The hydrodynamic as well as asperity contact load is found.
Hamrock, B. J., Majumdar, B. C.
core   +1 more source