Results 41 to 50 of about 2,250,140 (346)

Lubrication State Recognition Based on Energy Characteristics of Friction Vibration with EEMD and SVM

Shock and Vibration, 2021
In order to identify different lubrication states, lubrication experiments were carried out on a Bruker UMT-3 tester. The experimental results show that the frequency band energy characteristics of friction vibration signals are different under different
Hai-jie Yu, Hai-jun Wei, Jing-ming Li, Da‐ping Zhou, Li‐dui Wei, Hong Liu   +5 more
doaj   +1 more source

Hydrostatic and boundary lubrication of joints; nature of boundary lubricant.

Ortopedia Traumatologia Rehabilitacja, 2012
A very low coefficient of friction in joints makes it difficult to define clearly the mechanism of cartilage lubrication. The present paper describes the two currently predominant and mutually complementary views aiming to elucidate this mechanism. The first mechanism, referred to as hydrostatic lubrication, involves interstitial fluid pressurization ...
Stanisław, Moskalewski, Ewa, Jankowska-Steifer   +1 more
openaire   +3 more sources

High-order discontinuous Galerkin method for elastohydrodynamic lubrication line contact problems [PDF]

, 2005
In this paper a high-order discontinuous Galerkin method is used to solve steady-state isothermal line contact elastohydrodynamic lubrication problems.
Baumann, Brandt, Cockburn, Dowson, Elcoate, Goodyer, Goodyer, Hughes, Jing, Kweh, Lubrecht, Nurgat, Oden, Roelands, Rohde, Szabo, Taylor, Venner, Wu, Wu   +19 more
core   +1 more source

Experimental and numerical study of the mixed lubrication under the action of magnetic ionic liquid additives

Scientific Reports
In this paper, the tribological characteristics of an oil-soluble magnetic fluid additive under mixed lubrication are studied by experiments and numerical simulation.
Ze Liu, Zhijun Yan, Shibo Wu, Haocheng Sun, Shengwei Zhang   +4 more
doaj   +1 more source

Effect of boundary slips on thermal EHL in simple sliding finite line contact considering limiting shearing stress

Friction
With the advancement of surface technology, boundary slip in lubrication has become increasingly common. However, theoretical analysis in this area remains limited, necessitating further research to explore the impact of boundary slip, particularly ...
Mingyu Zhang, Jing Wang, C. H. Venner
doaj   +1 more source

Ball Milled Graphene Nano Additives for Enhancing Sliding Contact in Vegetable Oil

Nanomaterials, 2021
Graphite nanoplatelets (GNPs) as an oil nano additive has gained importance to enhance the lubrication properties of renewable lubricants, such as vegetable oils. Using appropriately processed GNPs is necessary to gain the required tribological advantage.
Emad Omrani, Arpith Siddaiah, Afsaneh Dorri Moghadam, Uma Garg, Pradeep Rohatgi, Pradeep L. Menezes   +5 more
doaj   +1 more source

A model for deformable roll coating with negative gaps and incompressible compliant layers [PDF]

, 2003
A soft elastohydrodynamic lubrication model is formulated for deformable roll coating involving two contra-rotating rolls, one rigid and the other covered with a compliant layer. Included is a finite-strip model (FSM) for the deformation of the layer and
Gaskell, P.H., Gostling, M.J., Savage, M.D., Young, A.E.   +3 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Molecular Mechanisms Underlying Lubrication by Ionic Liquids: Activated Slip and Flow

Lubricants, 2018
The present study provides molecular insight into the mechanisms underlying energy dissipation and lubrication of a smooth contact lubricated by an ionic liquid.
Mengwei Han, Rosa M. Espinosa-Marzal
doaj   +1 more source

Metallic film diffusion for boundary lubrication Patent [PDF]

, 1967
Metallic film diffusion for boundary lubrication in aerospace ...
Buckley, D. H., Johnson, R. L.
core   +2 more sources