Results 61 to 70 of about 7,402 (228)
The Role of Lubrication Mechanisms in the Knee Synovial Joints
مجلة النهرين للعلوم الهندسية, 2008 Synovial joints form the most important feature of the human body as they represent the centers of the most essential and basic activity in the human beings, which is motion.
Aseel Mohammed Ali, Albert E. Yousif
doaj
Research on Meshing Efficiency of Gear Pairs Based on Dynamic Sliding Friction Factors
Jixie chuandong, 2023 In order to study the meshing efficiency of the gear pair under the actual working conditions, the force and kinematics of the contact surface of the gear pair are analyzed, the lubrication state of the gear pair is judged by combining the theory of ...
Fu Jingbo +3 more
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Surface topography, including the various physical methods of measuring surfaces, and the various lubrication regimes (hydrodynamic, elastohydrodynamic, boundary, and mixed) are discussed.
Dowson, D., Hamrock, B. J.
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Journal of Texture Studies, Volume 55, Issue 4, August 2024.Tribological properties of 19 commercial food products in 6 categories (yogurts, dressings, spreads, porridges, emulsified sauces, and syrups) were investigated. The extended Stribeck curves across the four frictional regimes (the static, boundary, mixed, and hydrodynamic regimes) varied depending on the flow behavior, nutritional compositions, and the
Jung Sun Hong +6 more
wiley +1 more source
Establishment and Numerical Analysis of Lubrication Model of Double Involute Gear
MATEC Web of Conferences, 2016 The purpose of this paper is to derive the simplified elastohydrodynamic (EHD) lubrication model of the double involute gear (DIG) and study the effect of the segmented tooth waist on the lubricating properties of DIG.
Fan Zhimin, Xu Jun
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Soft lubrication: the elastohydrodynamics of non-conforming and conforming contacts
, 2004 We study the lubrication of fluid-immersed soft interfaces and show that elastic deformation couples tangential and normal forces and thus generates lift. We consider materials that deform easily, due to either geometry (e.g.
Cederbaum G. +9 more
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An Elastohydrodynamic Lubrication Experiment [PDF]
Nature, 1963 THE thickness and shape of the lubricant film between highly loaded rollers is the feature of elasto-hydrodynamic lubrication which has received most attention in recent years. The efficacy of hydrodynamic lubrication in such contacts is directly related to the thickness of the lubricant film compared with the surface irregularities on the solids, and ...
D. DOWSON, M. D. LONGFIELD
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Advanced Sustainable Systems, Volume 8, Issue 7, July 2024.Fine dispersions of electrospun cellulose acetate butyrate nanostructures in castor oil are formulated with the goal of being implemented as sustainable semi‐solid lubricants. A spectrum of nanoarchitectures, including porous nanostructures, capable of structuring oil are obtained by tuning the physicochemical and rheological properties of the spinning
Manuel A. Martín‐Alfonso +3 more
wiley +1 more source
Basic lubrication equations [PDF]
Lubricants, usually Newtonian fluids, are assumed to experience laminar flow. The basic equations used to describe the flow are the Navier-Stokes equation of motion.
Dowson, D., Hamrock, B. J.
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Large‐Scale Numerical Simulation of the Solid Lubricant Behavior in the Leg Joints of Insects
Advanced Theory and Simulations, Volume 7, Issue 6, June 2024.Semi‐solid lubricant in the insect legs joints is represented by cylindrical fragments with a diameter of ≈1 µm. The results of numerical simulation show that the fragments tend to adhesion and the formation of clumps of different shapes and sizes. Such a system allows maintaining clearance between surfaces while reducing friction and elimination of ...
Alexander E. Filippov +3 more
wiley +1 more source