Results 1 to 10 of about 5,816 (263)

Molecular dynamics simulation of the Stribeck curve: Boundary lubrication, mixed lubrication, and hydrodynamic lubrication on the atomistic level

open access: yesFriction, 2023
Lubricated contact processes are studied using classical molecular dynamics simulations for determining the entire range of the Stribeck curve. Therefore, the lateral movement of two solid bodies at different gap height are studied. In each simulation, a
Simon Stephan   +3 more
doaj   +2 more sources

Shear-responsive boundary-lubricated hydrogels attenuate osteoarthritis

open access: yesBioactive Materials, 2022
Lipid-based boundary layers formed on liposome-containing hydrogels can facilitate lubrication. However, these boundary layers can be damaged by shear, resulting in decreased lubrication.
Yiting Lei   +9 more
doaj   +1 more source

Construction and Tribological Properties of Biomimetic Cartilage-Lubricating Hydrogels

open access: yesGels, 2022
Articular cartilage provides ultralow friction to maintain the physiological function of the knee joint, which arises from the hierarchical complex composed of hyaluronic acid, phospholipids, and lubricin, covering the cartilage surface as boundary ...
Qiuyi Chen   +5 more
doaj   +1 more source

Analysis of the Influence of Textured Surfaces and Lubrication Conditions on the Tribological Performance between the Compression Ring and Cylinder Liner

open access: yesLubricants, 2021
The objective of the present investigation is to analyze the tribological performance between the union of the cylinder liner and the compression ring under the influence of surface texturing and different lubrication boundary conditions. The analysis is
Carlos Pardo García   +2 more
doaj   +1 more source

Research progress of cartilage lubrication and biomimetic cartilage lubrication materials

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Human joints move thousands of times a day. The articular cartilage plays a vital role in joints’ protection. If there is dysfunction in cartilage lubrication, cartilage cannot maintain its normal function.
Haoming An   +17 more
doaj   +1 more source

Mixed-lubrication analysis of misaligned journal bearing considering turbulence and cavitation

open access: yesAIP Advances, 2022
By integrating the average flow equation and Ng–Pan turbulence model using the boundary condition of mass conserving [Jakobsson-Floberg-Olsson (JFO)], a mixed lubrication model for misaligned bearing was established considering the effects of turbulence ...
Xintao Song, Wei Wu, Shihua Yuan
doaj   +1 more source

MoS2 reinforced PEEK composite for improved aqueous boundary lubrication

open access: yesFriction, 2023
Polyether-etherketone (PEEK) is a corrosion-resistant material that has been widely used in aqueous lubrication. However, its anti-wear performance must be improved for its application in the industry.
Xin Hou   +8 more
doaj   +1 more source

A Computational Study on the Role of Lubricants under Boundary Lubrication [PDF]

open access: yesLubricants, 2023
The knowledge of how lubricants contribute to the operational life of a drive train is unclear until now, despite the fact that plenty of literature is available. A novel concept is presented in order to estimate the wear appearing in bearings addressed to the regime of mixed friction with respect to the composition and the so-called “inner” structure ...
Walter Holweger   +5 more
openaire   +3 more sources

Study on the enhanced tribological performance for titanium alloys by PEG oil/Zn-nanoparticles

open access: yesMaterials Research Express, 2020
This work developed an effective and promising lubricant containing Zn nanoparticles and polyethylene glycol (PEG) base oil to deal with the tough problem of boundary lubrication for steel/Ti6Al4V.
Xin Quan   +3 more
doaj   +1 more source

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