Results 11 to 20 of about 4,040 (217)

Influence of physical-property models on thermal elastohydrodynamic lubrication solutions

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
This study numerically obtains the thermal elastohydrodynamic lubrication (TEHL) solutions of different physical-property models of five lubricants and different thermal properties of the solids.
Toshiharu KAZAMA
doaj   +1 more source

Film Thickness Changes in EHD Sliding Contacts Lubricated by a Fatty Alcohol

open access: yesTribology Online, 2006
This paper describes the appearance of abnormal film thickness features formed in elastohydrodynamic contacts lubricated by a fatty alcohol. Experiments were conducted by varying the slide to roll ratio between a steel ball and a glass disk in a ball-on ...
Kazuyuki Yagi, Philippe Vergne
doaj   +1 more source

Effects of Nitrogen Modification of Porous PVD–MoS2 Coatings on the Tribological Behavior under Rolling–Sliding Conditions in Vacuum

open access: yesLubricants, 2023
In order to improve the tribological performance of PVD–MoS2 coatings, which are frequently used as a solid lubricant for operating in challenging environments, e.g., in a vacuum, they can be modified with nitrogen.
Armin Seynstahl   +4 more
doaj   +1 more source

Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - In the Case of Elliptical Contact Condition -

open access: yesTribology Online, 2009
Under the elliptical contact conditions with an ellipticity parameter of Ke=1.4, a non-Newtonian thermal EHL analysis was carried out. The lubricating oil was assumed to behave as a Maxwell fluid.
Toshifumi Mawatari, Akira Nakajima
doaj   +1 more source

On the Temperature and Lubricant Film Thickness Distribution in EHL Contacts with Arbitrary Entrainment

open access: yesLubricants, 2018
An understanding of mechanisms which are responsible for elastohydrodynamic lubricant film formation under high sliding conditions is necessary to increase durability of machine parts.
Milan Omasta   +4 more
doaj   +1 more source

Stribeck Friction Curve in Point EHL Contacts

open access: yesTribology Online, 2006
The ultra thin film interferometry and conventional optical interferometry techniques are used to measure the central film thickness and friction force as a function of the dimensionless speed parameter.
Hiroshi Nishikawa, Motohiro Kaneta
doaj   +1 more source

Novel Model for Manoeuvrability of Ships Advancing in Landslide-Generated Tsunamis

open access: yesAdvances in Civil Engineering, 2020
The rock and soil on the shore of the bank are unsteady and slide in a poor environment, affecting the water body in the river channel and forming landslide-generated tsunamis. This directly impacts the navigation of vessels in the river.
Peiyin Yuan, Pingyi Wang, Yu Zhao
doaj   +1 more source

Tuning the Slide-Roll Motion Mode of Carbon Nanotubes via Hydroxyl Groups

open access: yesNanoscale Research Letters, 2018
Controlling the motion of carbon nanotubes is critical in manipulating nanodevices, including nanorobots. Herein, we investigate the motion behavior of SWCNT (10,10) on Si substrate utilizing molecular dynamics simulations.
Rui Li, Shiwei Wang, Qing Peng
doaj   +1 more source

Tribological Behavior of Nanolubricants Based on Coated Magnetic Nanoparticles and Trimethylolpropane Trioleate Base Oil

open access: yesNanomaterials, 2020
The main task of this work is to study the tribological performance of nanolubricants formed by trimethylolpropane trioleate (TMPTO) base oil with magnetic nanoparticles coated with oleic acid: Fe3O4 of two sizes 6.3 nm and 10 nm, and Nd alloy compound ...
José M. Liñeira del Río   +8 more
doaj   +1 more source

Kinematic Characteristic Analysis of Hypoid Gear based on Two Kinds of Eigenfunction

open access: yesJixie chuandong, 2021
Based on the classical space meshing theory, two kinds of basic eigenfunctions and eigenvectors of conjugate surfaces are defined. The function of the two kinds of eigenfunctions in the analysis of the meshing characteristics of conjugate surfaces is ...
Bingyang Wei   +3 more
doaj  

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