Results 1 to 10 of about 40,536 (268)

Quantification of oil film thickness on the top ring sliding surface by visualization

open access: yesNihon Kikai Gakkai ronbunshu, 2023
The oil film thickness of the piston ring at the sliding surface affects oil consumption, friction loss and wear of the ring and liner in internal combustion engines.
Akito WATANABE   +5 more
doaj   +1 more source

Fundamentals for measurement of film thickness adhered on lubricating surface using ultrasonic method

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In order to obtain the fundamental information for the measurement of thin oil film thickness adhered on lubrication surface using ultrasonic method, the ultrasonic calculation considering the scattering attenuation at each interface and the influence of
Akitoshi TAKEUCHI
doaj   +1 more source

Study on Factors Influencing Film Formation of Grease and Calculation Model for Grease Film Thickness

open access: yesLubricants, 2022
The grease film thickness was measured in fully flooded elastohydrodynamic lubrication, and the influence of rolling speed, load, consistency, base oil type and thickener type on grease film thickness was analyzed. A new calculation model for grease film
Zhe Zhang   +3 more
doaj   +1 more source

Oil-film extinction coefficient inversion based on thickness difference

open access: yesOptics 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
openaire   +2 more sources

Acquisition Method for Micro-gap Oil Film Morphology of Hydrostatic Workbench Having Double Rectangular Cavities under Working Conditions of High-Speed and Heavy-Load [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
When the hydrostatic workbench is running under high-speed overload conditions, the friction by-product is partially placed, causing the micro-gap oil film to be smaller, and the tribology is exposed.
X. D. Yu   +9 more
doaj   +1 more source

Oil Film Formation of Reciprocating Seals Observed by Interferometry

open access: yesTribology Online, 2014
Oil film thickness in rubber piston seals is measured by interferometry. Optimized optics and fluids enable clear interferograms. The oil film thickness on the contact area is measured during reciprocating motion.
Kenichi Yoshimura   +2 more
doaj   +1 more source

Characteristic Analysis of Thrust Bearing with Circular Elastic Metal Plastic Pad

open access: yesJournal of Harbin University of Science and Technology, 2020
The circular elastic metalplastic pad supported by the center point is taken as the research object Based on the lubrication theory, the mathematical model of thrust bearing is established The simulation analysis is carried out by using finite element ...
LI Yonghai   +4 more
doaj   +1 more source

Relationship between Supplied Oil Flow Rates and Oil Film Thicknesses under Starved Elastohydrodynamic Lubrication

open access: yesLubricants, 2015
Many studies have already considered starved lubrication. However, there have been no reports on the oil film thicknesses under steady starved EHL (elastohydrodynamic lubrication), where the ultra-low volume of oil supplied per unit time is uniform.
Taisuke Maruyama, Tsuyoshi Saitoh
doaj   +1 more source

Effect of Molecular Structure of Oil on the Film Thickness during Rolling

open access: yesTribology 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
doaj   +1 more source

Characterizations of the oil film considering the elastohydrodynamic lubrication effect of the piston–cylinder interface

open access: yesAIP 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
doaj   +1 more source

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