Recent experimental developments have enabled the measurement of dynamical forces between two moving liquid drops in solution using an atomic force microscope (AFM). The drop sizes, interfacial tension, and approach velocities used in the experiments are in a regime where surface forces, hydrodynamics, and drop deformation are all significant. A detailed theoretical model of the experimental se...

Modelling hydrodynamic lubrication is crucial in the design of engineering components as well for a fundamental understanding friction mechanisms. The cornerstone thin-film flow modelling Reynolds equation -- lower-dimensional representation Stokes equation. However, derivation based on assumptions and fixed form constitutive relations, that may not generally be valid, especially when studying ...

Abstract The aim of this study is to consider the effect pressure on viscosity lubricating oil in adopted model hydrodynamic lubrication and calculated flow parameters operating a conical slide bearing. numerical analysis consisted solving Reynolds type equation for process stationary lubrication.

In high speed rotating machines such as turbines and generators, vibrations of a rotating shaft often hinder the smooth operation of the machine or even cause failure. Oil whip is one of such vibrations due to oil film action of journal bearing. Its mechanism and preventive method is explained and proposed in this paper. Further theoretical and experimental analyses are made for considering hea...

Abstract Lubricated contact processes are studied using classical molecular dynamics simulations for determining the entire range of Stribeck curve. Therefore, lateral movement two solid bodies at different gap height studied. In each simulation, a rigid asperity is moved constant above flat iron surface in lubricating fluid. Both methane and decane considered as lubricants. The three main lubr...