This article presents a dynamic system model for ultrasonic lubrication configured in perpendicular mode, as experimentally measured with a modified pin-on-disc tribometer.
The effect of particle collisions on settling parameters in a narrow channel with dense-phase flow is studied using the modified PFC2D code with the model for fluid lubrication.
The means to meet the stated objectives are via micromechanical observations of particle settling in a narrow channel using a modified DEM CFD approach as implemented in PFC2D with an improved particle contact model that accounts for lubrication effects on particle collisions.
This particular problem stems from elastohydrodynamic lubrication and involves optimising the computational model for a lubricant based on the match between simulation results and experimentally observed data.
A numerical model for piston dynamics and lubrication analysis is proposed by coupling the lubrication model of piston skirt liner system and the dynamics model of multibody system consisting of crank, connecting rod and piston.
This study is aimed at the development of a transient hydrodynamic lubrication model for the pumps with varying length of the piston-cylinder interface and the investigation of the influences of cylinder length, clearance, as well as other design parameters, on the pump piston forces and friction.
Realizing the tight relationship between the gear dynamics and the gear tribology, a six degree-of-freedom discrete dynamics model and a mixed elastohydrodynamic lubrication model for spur gears are bridged through an iterative numerical scheme to determine the surface normal pressure and tangential shear under the tribo-dynamic condition, where the gear dynamics and the gear tribology interact.
We extend a recently introduced method for numerically solving partial differential equations on implicit surfaces [M. Bertalmío, L.T. Cheng, S. Osher, G. Sapiro. Variational problems and partial differential equations on implicit surfaces, J. Comput. Phys. 174 (20012001) 759 780] to fourth order PDEs including the Cahn Hilliard equation and a lubrication model for curved surfaces.
Many have fittings for lubrication while others are permanently lubricated or "maintenance free".
We show that the main features of our lubrication-based model for rebound with an inclined wall can be expressed with a simple force model proposed by Moraga et al., suitable for use in direct numerical simulations of multiphase flow.
Fluid flow in the fracture is modeled with lubrication theory.
