Results 231 to 240 of about 5,434,545 (279)

Magnetohydrodynamic Theory of Lubrication

The Physics of Fluids, 1962
The magnetohydrodynamic theory of the two-dimensional flow between plane walls of small inclination is applied to the problem of lubrication of bearings. Equations are given for boundary conditions. The arrangement of guide surface and slide block in relation to the external magnetic field are shown.
Fucks, W., Uhlenbusch, J.
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Theory of Lubrication

2023
Abstract This chapter reviews the basic theory of lubrication in the context of metal forming applications. It discusses the rheological properties of fluids and their effect on fluid-film thickness at pressures, temperatures, and loading conditions typical of metal working processes. It describes the three lubrication regimes (boundary,
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Lubrication Theory for Micropolar Fluids

Journal of Applied Mechanics, 1971
The equations governing the flow of a fluid with rigid, spherical substructure are summarized. A two-dimensional flow field is considered and applied to the geometry of a slider bearing. Order-of-magnitude arguments are used which reduce the governing equations to a system of coupled, linear, ordinary differential equations.
Allen, S. J., Kline, K. A.
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Theory of viscoelastic lubrication

Tribology International, 2014
Abstract We study the lubricated (wet) contact mechanics of a smooth hard cylinder sliding on a randomly rough nominally flat surface of a linear viscoelastic solid. We calculate the rolling and sliding friction, and study the transition from the boundary lubrication to the elasto-hydrodynamic lubrication regime.
SCARAGGI, MICHELE, B. Persson
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Theory of friction and boundary lubrication

Physical Review B, 1993
When an external force acts on an adsorbate structure, the structure may slide or flow relative to the substrate. The mechanism behind this sliding motion is of fundamental importance for the understanding of friction and lubrication between two flat macroscopic surfaces, and is also related to the question of what boundary condition should be used for
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A theory for ferromagnetic lubrication

Journal of Magnetism and Magnetic Materials, 1987
Abstract A generalized form of Reynolds' equation governing the pressure in a thin film of a ferrofluid in presence of transversely applied magnetic field is derived by considering rotation of particles. This equation is used to study the effects of applied magnetic field and the Brownian relaxation time parameter on the bearing characteristics of ...
J.B. Shukla, D. Kumar
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On weeping lubrication theory

Zeitschrift für angewandte Mathematik und Physik ZAMP, 1969
Der Einfluss einer bewegten Last auf einen zusammengesetzten Korper wird untersucht. Dieser besteht aus einer poroselastischen Schicht auf einer elastischen Halbebene. Das Modell simuliert die mechanische Belastung eines hyalinen Knorpels endlicher Dicke, der die Oberflache von Knochengelenken bedeckt.
Mow, M. C., Ling, F. F.
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A Theory of Boundary Lubrication

A S L E Transactions, 1959
The mechanism of boundary friction is assumed here to be due to the molecular forces between hydrocarbon molecules adsorbed on the surfaces rather than to welding and tearing of the opposing surface roughness. On this assumption the frictional force, which arises when two orientated layers are moved over each other, can be calculated.
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On the Effect of Lubricant Inertia in the Theory of Hydrodynamic Lubrication

Journal of Basic Engineering, 1959
A theoretical study is made of the corrections required to the basic lubrication equations to allow for small effects of lubricant inertia in the laminar regime. The problem is approached by first determining the stream function for a wedge-shaped oil film with purely viscous flow and then obtaining the first-order correction for inertia.
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On the theory of the finance of lubrication, and on the valuation of lubricants by consumers

Journal of the Franklin Institute, 1885
Robert H. Thurston, N.J. Hoboken
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