Results 251 to 260 of about 6,212 (300)

The Magnetohydrodynamic Squeeze Film

Journal of Tribology, 1988
The motion of an electrically conducting fluid film squeezed between two parallel disks in the presence of a magnetic field applied perpendicular to the disks is studied. Analytic solutions through use of a regular perturbation scheme are obtained. The results show that the electromagnetic forces increase the load carrying capacity considerably.
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An Adaptive Squeeze-Film Bearing

Journal of Tribology, 1984
This paper examines the effect of controlling the oil supply pressure to squeeze-film bearings in applications where these elements are used to provide damping for a light flexible transmission shaft having an arbitrary unbalance mass distribution. The shaft length and diameter selected for the study are typical of those used for helicopter tail rotor ...
C. R. Burrows, M. N. Sahinkaya, O. S. Turkay   +2 more
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A Study of Thermohydrodynamic Squeeze Films

Journal of Lubrication Technology, 1974
This paper presents an analysis of the thermohydrodynamic performance of squeeze films. The mathematical model consists of a 3-dimensional Reynolds equation, a 3-dimensional time dependent energy equation, and a 3-dimensional time dependent heat conduction equation. The system of equations is solved numerically.
S. M. Rohde, H. A. Ezzat
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A review of squeeze films

Wear, 1965
Abstract A historical account is given of the development of squeeze films from the original Reynolds-Stefan equation to the present time. Fundamental equations including the effects of inertia, variable viscosity, non-Newtonian fluids, surf ace tension, dynamic loading and surface roughness are presented. A current application of squeeze film theory
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The Gaseous Squeeze-Film at Moderately Large Squeeze Numbers

Journal of Basic Engineering, 1970
The asymptotic analysis of the gaseous squeeze-film bearing has been extended to obtain 0 {σ−1/2} effects in accordance with the isothermal gas lubrication theory and the method of singular perturbation. 0 {σ−1/2} corrections are identified to contain not only edge effects (inner problem) but also edge-interior interactions which are analogous to the ...
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A CFD Study of Squeeze Film

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">In a new generation of unit injector (HEUI-Hydraulically Actuated and Electronically Controlled), a thin gap of oil film exists between the armature and solenoid. At low temperatures, high pressure slows the poppet causing poor injector performance.
Kurichi Kumar, Chetan Desai, Mike Flinn
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Hydromagnetic Theory for Squeeze Films

Journal of Basic Engineering, 1965
In this paper, the hydromagnetic theory for squeeze films of conducting lubricants has been discussed with special reference to roller and slipper type of bearings. The effect of magnetic field has been theoretically investigated and it has been shown that the load capacity, pressure, and time of approach can be increased by applying the magnetic field
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On the Solution of Elastohydrodynamic Squeeze Films

A S L E Transactions, 1986
A solution scheme for the squeeze-film problem using the Newton-Raphson method with a tangential matrix is presented. The integration of elasticity equation is done with the aid of isoparametric elements and the film thickness under a sinusoidal load is obtained.
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Annular Compressible Squeeze Films

Journal of Tribology, 1985
The exact solution for annular isothermal squeeze films in either parallel or tilting simple harmonic motion of small amplitude is derived. Pressure distributions, forces and moments are given for any inner to outer radius ratio. Comparison of cutoff frequencies with approximate values of previous works indicates that for low inter to outer radius ...
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Magnetic Squeeze-Films

2017
Design proposals for a magnetic-repulsion enhanced hydrostatic bearing for the type N2 wave-power ...
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