Results 281 to 290 of about 515,795 (344)

Optical Measurement of Oil Film Thickness Between Rollers

Journal of Lubrication Technology, 1977
Previous 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
openaire   +1 more source

Oil distribution and oil film thickness within the piston ring-liner contact measured by laser-induced fluorescence in a reciprocating model test under starved lubrication conditions

Tribology International, 2019
For a better understanding of the most important parameters and boundary conditions for scuffing initiation in the piston ring versus cylinder liner contact at fired top dead center of internal combustion engines, oil distribution measurements were ...
P. Obert, H. Füsser, D. Bartel
semanticscholar   +1 more source

Multi-position measurement of oil film thickness within the slipper bearing in axial piston pumps

Measurement, 2018
The oil film thickness represents the greatest unknown variable influencing the slipper performance in axial piston pumps. Earlier slipper test rigs suffer from two main drawbacks: inverse kinematics of the slipper and fixed measured positions.
Qun Chao, Jun-hui Zhang, Bing Xu, Qian-nan Wang   +3 more
semanticscholar   +1 more source

Nanometric Thickness EHL Oil Films

Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology, 2006
EHD oil films possess a remnant thickness of 10–20 nm at very low speeds. This behavior was justified numerically using an empirical equation for wall viscosity. This paper uses molecule-wall interaction potential and finds that the viscosity decreases exponentially with the distance to the wall. A thin attached layer, responsible for remnant oil film,
openaire   +1 more source

Measurement and calculation of oil film thickness in a ball bearing

Industrial Lubrication and Tribology, 2018
Purpose The oil film thickness provides a key performance indicator of a ball bearing lubrication condition. This paper aims to propose an approach to calculate and measure the oil film thickness of the bearing.
Baogang Wen, H. Ren, Pengfei Dang, X. Hao, Qingkai Han   +4 more
semanticscholar   +1 more source

Oil Refinery Applications Of Thick-Film Synthetic Coatings

Corrosion, 1959
Three 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
openaire   +1 more source

Investigation of cavitation evolution and hydrodynamic performances of oil film seal with spiral groove

, 2021
This paper presents cavitation action of the oil film seal with downstream-pumping spiral groove and effect of cavitation on the hydrodynamic performances.
Zhentao Li, Yongfan Li, Huiqing Cao, Muming Hao, Fuyu Liu, D. Meng   +5 more
semanticscholar   +1 more source

MEASUREMENT OF THIN OIL FILM THICKNESS USING ULTRASONIC TECHNIQUE

Modern Physics Letters B, 2008
An application of ultrasonic technique is attempted for the purpose of measuring thin oil film thickness between two surfaces. The amplitude of the wave reflected from the boundary is vary depending on film thickness, because the ultrasonic wave emitted to the interface between two surfaces does multiple reflection and interference in oil film ...
AKITOSHI TAKEUCHI, SEIICHI TERADA, SO TODA   +2 more
openaire   +1 more source

Layered oil slip model for investigation of film thickness behaviours at high speed conditions

Tribology International, 2019
A layered oil slip model considering the slip and thermal effect is proposed to explore the mechanism of film thickness behaviours at high speed. The modified Reynolds equation considering the interfacial slip is derived and the limiting shear stress of ...
Yaoguang Zhang, Wenzhong Wang, He Liang, Ziqiang Zhao   +3 more
semanticscholar   +1 more source

The Measurement of Oil-Film Thickness in Gear Teeth

Journal of Basic Engineering, 1960
The voltage drop across thin oil films when a constant current of 1 amp is passed, i.e., the discharge voltage, is used to measure the oil-film thickness between loaded gear teeth while running. It is found that the thickness at the pitch line is between 1 and 4 × 10−4 in., which varies slightly with the viscosity and rather more strongly with load ...
I. O. MacConochie, A. Cameron
openaire   +2 more sources