Results 231 to 240 of about 3,303,520 (275)
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Oil Film Thickness in Lightly-Loaded Roller Bearings
Journal of Mechanical Engineering Science, 1974The effects of speed, load and roller geometry on the oil film thickness and shape in a complete roller bearing are demonstrated experimentally by means of optical interferometry. At quite moderate roller speeds, increase of film thickness becomes inhibited.
H. Bahadoran, R. Gohar
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Optical Measurement of Oil Film Thickness Between Rollers
Journal of Lubrication Technology, 1977Previous research has established that the laser beam diffraction method can be used for measurement of film thicknesses between two adjacent flat surfaces. This paper describes further experimentation on this method, where oil film thicknesses between rollers is measured.
T. Willis, B. Seth
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Film thickness anomalies in very thin elastohydrodynamic oil films
1997Experimental studies of very thin elastohydrodynamic (EHD) oil films have shown, or suggested, that several aspects of lubricant behaviour do not fully conform to the model presumed by classical EHD theory. This study examines three forms of behaviour which appear to be anomalous.
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Oil Refinery Applications Of Thick-Film Synthetic Coatings
Corrosion, 1959Three recent developments in synthetic protective coatings have made possible relatively thick film applications per coat without resulting in sags, runs or skin-dry wrinkling. These developments are hot spray application, catalyst-cured coatings and high-film-build alkyd paints.
R. W. Maier, W. B. Cook, R. B. MacQueen
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Quantitative elastohydrodynamic film thickness of mechanically degraded oil
Tribology International, 2013Abstract The low-shear viscosities of new oil and used (degraded) oil were measured to moderately high pressure. Shear-thinning flow curves were generated over a range of shear stress important to EHL film forming. Mechanical shear degradation only affected the viscosity at low shear stress while the viscosity at high stress remained unchanged.
Scott Bair +3 more
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The investigation of oil film thickness in heavily-loaded contact
Wear, 1974Abstract An experimental study of the shape and thickness of the oil film during rolling in a thrust ball bearing has been carried out by the interference method. The experimental results showed good agreement with theory. Oil film thickness was affected mainly by the rolling velocity, viscosity of oil and maximum Hertzian stress.
D.S. Kodnir +3 more
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On the Continuous Monitoring of Oil-Film Thickness in an Engine Bearing
Proceedings of the Institution of Mechanical Engineers, 1978This paper describes research involving the measurement of oil-film thickness in a large end bearing of a medium-sized medium-speed marine diesel engine. The design of the transducer and its novel signal conditioning circuitry is discussed. Comparisons are made between the measured results and numerical predictions.
G. Goodwin, R. Holmes
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Oil film thickness using airborne laser-induced oil fluorescence backscatter
Applied Optics, 1983Remote airborne measurement of oil film thickness on ocean surface using laser-induced water Raman backscatter is discussed. It is pointed out that the theoretical model of oil fluorescence by Horvath et al. (1971) contains the necessary constituents to provide for the natural background fluorescence that is also induced by the laser during the course ...
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Applied Optics, 1979
A method is described of determining the thickness of oil films on polluted water by remote sensing of oil fluorescence radiation. For this purpose the oil is excited at two wavelengths, one in the UV (337 nm) and one in the red (633 nm), while a third intermediate excitation wavelength (490 nm) can be used to extend the measuring range.
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A method is described of determining the thickness of oil films on polluted water by remote sensing of oil fluorescence radiation. For this purpose the oil is excited at two wavelengths, one in the UV (337 nm) and one in the red (633 nm), while a third intermediate excitation wavelength (490 nm) can be used to extend the measuring range.
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Effects of Oil Additives on Lubricant Film Thickness and Traction
SAE Technical Paper Series, 1984<div class="htmlview paragraph">Effects of typical engine-oil additives on peak traction coefficient and film thickness were evaluated on a disk-type traction machine. Film thickness was imputed from measured inter-disk capacitance.</div> <div class="htmlview paragraph">The addition of 1% ZDTP to an SAE 5 base mineral oil increased ...
F. L. Snyder +2 more
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