Results 31 to 40 of about 2,250,140 (346)
Biosurface and Biotribology, 2018 The soft hydrogel material is expected for a candidate material as biomimetic artificial cartilage with synergistic functionalities of adaptive multimode lubrication.
Nobuo Sakai +4 more
doaj +1 more source
Tribology of enzymatically degraded cartilage mimicking early osteoarthritis
Friction, 2023 Healthy cartilage is a water-filled super lubricious tissue. Collagen type II provides it structural stability, and proteoglycans absorb water to keep the cartilage in a swollen condition, providing it the ability to creep and provide weeping lubrication.
Ke Ren +6 more
doaj +1 more source
Trimethylolpropane trioleate as eco-friendly lubricant additive
Engineering Science and Technology, an International Journal, 2022 Approximately 17.9% of fuel energy is used to overcome engine friction in passenger cars with engine frictional losses further broken down into losses along hydrodynamic (40%), elastohydrodynamic – due to pure sliding motion (40%), mixed (10%) and ...
Chiew Tin Lee +6 more
doaj +1 more source
Synovial joint lubrication – does nature teach more effective engineering lubrication strategies? [PDF]
, 2007 Nature shows numerous examples of systems which show energy efficiency, elegance in their design and optimum use of materials. Biomimetics is an emerging field of research in engineering and successes have been documented in the diverse fields of ...
Liskiewicz, T. +3 more
core +1 more source
Rough Surface Contact Modelling—A Review
Lubricants, 2022 It has been shown experimentally that boundary friction is proportional to load (commonly known as Amontons’ law) for more than 500 years, and the fact that it holds true over many scales (from microns to kilometres, and from nano-Newtons to Mega-Newtons)
Robert Ian Taylor
doaj +1 more source
Boundary conditions for free surface inlet and outlet\ud problems [PDF]
, 2012 We investigate and compare the boundary conditions that are to be applied to free surface problems involving inlet and outlets of Newtonian fluid, typically found in coating processes.
Breward, C. J. W. +3 more
core +2 more sources
Boundary lubrication: Dynamics of squeeze-out [PDF]
Physical Review E, 2001 The dynamics of the expulsion of the last liquid monolayer of molecules confined between two surfaces (measured recently for the first time) has been analyzed by solving the two-dimensional Navier-Stokes equation combined with kinetic Monte Carlo simulations. Instabilities in the boundary line of the expelled film were observed.
Zilberman, S. +4 more
openaire +4 more sources
A coupled finite-volume CFD solver for two-dimensional elasto-hydrodynamic lubrication problems with particular application to rolling element bearings [PDF]
, 2016 This paper describes a new computational fluid dynamics methodology for modelling elastohydrodynamic contacts. A finite-volume technique is implemented in the ‘OpenFOAM’ package to solve the Navier-Stokes equations and resolve all gradients in a ...
Dini, D +3 more
core +1 more source
FrictionSurface moisture or humidity impacting the lubrication property is a ubiquitous phenomenon in tribological systems, which is demonstrated by a combination of molecular dynamics (MD) simulation and experiment for the organic friction modifier (OFM ...
Xiaobin Yi +7 more
semanticscholar +1 more source
Tribology Online, 2008 The effects of metals such as cobalt (Co), cerium (Ce), magnesium (Mg), nickel (Ni) and titanium (Ti) added to diamond-like carbon (DLC) films on boundary lubrication properties were investigated using a ball-on disk tribometer.
Shojiro Miyake +6 more
doaj +1 more source