Ultrasonic Reflection for Measurement of Oil Film Thickness and Contact between Dissimilar Materials [PDF]
, 2012 The contact between dissimilar materials occurs in many machine elements where one of the contacting parts is manufactured from low modulus materials such as lip seals, o-rings, and metal on polymer prosthetic hip joints.
Gasni, Dedison
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Study of film formation in EHD contacts using a novel method based on electrical capacitance [PDF]
, 2011 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The elastohydrodynamic lubrication regime (EHD) is found in many machine elements, such as rolling element bearings, gears, cam/tappet, where a combination ...
Furtuna, Marian Dumitru
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Evolution of lubricant degradation and lubricant behaviour in a piston assembly of a reciprocating gasoline engine [PDF]
, 2013 The most difficult and challenging area for the tribology of reciprocating internal combustion engines to improve efficiency and life is the lubricant health within the piston ring pack.
Notay, Rai Bahadur Raman Singh
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Measurement of the Film Thickness, Film Velocity and Entrainment Fraction in a Liquid-Air Annular Flow Using a Conductance Flowmeter [PDF]
, 2009 In certain older oil wells in the Middle East, the produced fluid is predominantly natural gas which flows at very high rates (e.g. 50,000 m3 / day ). Smaller quantities of crude oil (e.g. 50m3 / day ) and water (950m3 / day ) are also produced.
Lucas, Gary, A-Yarubi, Qahtan
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Effect of Molecular Structure of Oil on the Film Thickness during Rolling
Tribology Online, 2009 In recent years, metal working oil is required to have lower viscosity and higher lubricity than ever. Controlling oil film thickness is one of the most important in metal working.
Takamichi Watanabe, Yasuhiro Hosomi
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Ultrasonic Phase and Amplitude and the Measurement of Oil Film Thickness
World Tribology Congress III, Volume 1, 2005 The reflection of ultrasound at an oil film can be used to determine the film thickness. A thin oil film reflects less ultrasound than a thick film. When the film is thin there is a simple relationship between oil film thickness and the proportion of the wave amplitude reflected.
Dwyer-Joyce, R.S. +2 more
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Oil-film extinction coefficient inversion based on thickness difference
Optics Express, 2022 The extinction coefficient of oil films on the sea surface was inversion using a physical model based on two-beam interference and the equal-thickness difference method. The coefficient is simplified to a quadratic equation in one variable related to oil-film thickness and incident angle and wavelength of light. Through a laboratory-simulated oil spill
Zhenduo Zhang +5 more
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AIP Advances, 2020 To study the oil film performance, a multi-physical coupling model considering the elastohydrodynamic lubrication effect of the piston–cylinder interface is established and verified.
Xiaojun Chen +4 more
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ANALYSIS OF LOAD CAPACITY AND TEMPERATURE FIELD OF SPHERICAL HYBRID SLIDING BEARINGS (MT)
Jixie qiangdu, 2023 The oil film temperature of the spherical hybrid sliding bearings would increase due to the friction and shear of the lubricating oil at high speed or super high speed, which leads to the thermal deformation of bearing and rotor.
XUE Hao +4 more
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Jixie chuandong, 2022 In view of the factors affecting the lubrication performance of crankshaft main bearing, an elastohydrodynamic lubrication model of crankshaft main bearing, considering thermal effect, is established. The model takes the external load of bearing, bearing
Shao Kang, Wang Guangdong, Bi Fengrong
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