elastohydrodynamic lubrication (EHL)
A multiscale method for optimising surface topography in elastohydrodynamic lubrication (EHL) using metamodels
... Elastohydrodynamic Lubrication (EHL) describes the forma- tion of a lubricated film between two machine elements which are under load and in relative motion to each ...film lubrication is ...
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High-order discontinuous Galerkin method for elastohydrodynamic lubrication line contact problems
... In most complex mechanical systems lubricants are used to reduce friction and protect moving parts against wear. In many cases, the geometry of the contacting elements determines the shape of the lubricant film. However, ...
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Adaptive high-order finite element solution of transient elastohydrodynamic lubrication problems
... Elastohydrodynamic Lubrication (EHL) problems have been studied for many years and many numerical methods have been introduced to solve them [1]-[8]. However, most of these methods are based around low ...
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On the Two-Scale Modelling of Elastohydrodynamic Lubrication in Tilted-Pad Bearings
... the Elastohydrodynamic Lubrication (EHL) of tilted- pad bearings is derived and a range of solutions are ...for elastohydrodynamic operating conditions, show a dependency of the solution to the pad ...
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Surface Roughness and Density Effects in Thermal Elastohydrodynamic Lubrication Point Contacts
... wear. Elastohydrodynamic lubrication (EHL) is a type of lubrication in tribology where high pressure in the contact region causes ...Thermal elastohydrodynamic lubrication (TEHL) also ...
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Heterogeneous Multiscale Methods for modelling surface topography in Elastohydrodynamic Lubrication line contacts
... The Elastohydrodynamic Lubrication (EHL) of line contacts generates high pressures which result in the bounding surfaces being separated by a thin lubricant film ...
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An Arbitrary Lagrangian–Eulerian Formulation for Modelling Cavitation in the Elastohydrodynamic Lubrication of Line Contacts
... Abstract: In this article an arbitrary Lagrangian–Eulerian (ALE) formulation for modelling cavitation in elastohydrodynamic lubrication (EHL) is derived and applied to line contact geometry. The method is ...
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Effect of simplifications of bone and components inclination on the elastohydrodynamic lubrication modeling of metal-on-metal hip resurfacing prosthesis
... Meng, Q, Liu, F, Fisher, J et al. (1 more author) (2013) Effect of simplifications of bone and components inclination on the elastohydrodynamic lubrication modeling of metal-on-metal hip resurfacing ...
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Ultrasonic Measurement for Film Thickness and Solid Contact in Elastohydrodynamic Lubrication
... in elastohydrodynamic lubricated (EHL) contacts if the opposing surfaces are fully separated by the liquid ...film lubrication is a common occurrence as the nominal thickness of the separating film is of a ...
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An adaptive finite element procedure for fully-coupled point contact elastohydrodynamic lubrication problems
... This paper presents an automatic locally adaptive finite element solver for the fully- coupled EHL point contact problems. The proposed algorithm uses a posteriori error estimation in the stress in order to control ...
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A numerical study of non-Newtonian transient elastohydrodynamic lubrication of metal-on-metal hip prostheses
... Table 1 Geometrical and material parameters of a MOM total hip replacement Diametrical clearance, cd 50-150 m Head radius, RH 18 mm Cup wall thickness 9.5 mm Equivalent support thicknes[r] ...
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Analysis of Connecting Rod Bearing Design Trends Using a Mode-Based Elastohydrodynamic Lubrication Model
... Although the described method is very computationally efficient, its weakness lies with its assumptions. The mobility map used for the design chart represented in Figure 1.2 is based off a short bearing approximation ...
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Jacobian Free Newton GMRES Method for Analysing Combined Effects of Surface Roughness and Couple Stress Character of Lubricant on EHL Line Contact
... Elastohydrodynamic Lubrication (EHL) is about the lubrication of heavily loaded non-conformal mechanical contacts of machine elements such as transmission gears, cams and roller ...
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Elastohydrodynamic performance of unexcited electro-rheological fluids
... Exploratory test results are presented for a series of mixtures of unexcited electro- rheological (ER) fluids under elastohydrodynamic lubrication (ehl) conditions. These were obtained from direct ...
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Lubricated contact analysis of a spur gear pair with dynamic loads
... thermal elastohydrodynamic lubrication (TEHL) problems, the temperature field within the solids and the film are calculated by solving energy equations of the solids and the film ...
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Predictive wear modeling of the articulating metal-on-metal hip replacements
... the Elastohydrodynamic Lubrication (EHL) regime, as well as the mixed or even boundary lubrication regime, where contact between the artificial femoral head and the acetabula cup leads to wearing of ...
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Elastohydrodynamic lubrication of big end bearings under steady and cyclic loads
... 2.1.4 Reynolds Equation: x' -y' frame 2.1.5 Cavitation Boundary Conditions a Gas Cavitation b Vapour Cavitation c Mathematical Representation 2.2 Elasticity Equations 2.2.1 Dynamic Loadi[r] ...
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INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES MANAGEMENT STARVATION EFFECTS IN ELASTO-HYDRODYNAMICALLY LUBRICATED LINE CONTACTS PARVEEN KUMAR * Department of Manufacturing and Automation, India
... conventional elastohydrodynamic lubrication theory by more realistic approach involving several physical ...in elastohydrodynamic lubrication of line ...
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Theoretical Investigation of Transient Ultra-Thin Lubricant Film During Rapid Deceleration
... transient elastohydrodynamic for the case of rapid halting, using ultrathin interferometry coupled to a high-speed camera to measure the change in lubricant film thickness, and theoretically based on Grubin’s ...
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Ultimate Rolling Texture in Pure Aluminum Highly Deformed by Accumulative Roll Bonding: Taylor Orientation Formed beyond Grain Subdivision
... The texture evolution of an accumulative roll bonding (ARB) processed commercial purity aluminium with lubrication was measured by electron backscattering diffraction with a field emission-type scanning electron ...
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