elastohydrodynamic lubrication
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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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
... This paper presents a new numerical method to solve transient line contact elastohydrodynamic lubrication (EHL) problems. A high-order Discontinuous Galerkin finite element method is used for the spatial ...
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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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An Arbitrary Lagrangian–Eulerian Formulation for Modelling Cavitation in the Elastohydrodynamic Lubrication of Line Contacts
... Elastohydrodynamic lubrication (EHL) considers two bodies rotating under load in fully-flooded conditions in which pressure generated in the lubricant subsequently causes deformation of the bounding ...
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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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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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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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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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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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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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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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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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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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INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES MANAGEMENT STARVATION EFFECTS IN ELASTO-HYDRODYNAMICALLY LUBRICATED LINE CONTACTS PARVEEN KUMAR * Department of Manufacturing and Automation, India
... hydrodynamic lubrication a fluid film is produced between the contacting surfaces and the pressure generated in the film balances the applied ...hydrodynamic lubrication by taking account of elastic ...
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Oral Lubrication Matters: Effects on Satiety
... The use of ready salted crisps as a salty snack in the current study may have influenced the results. Cravings and liking for the crisps may have overshadowed the chewing and oral lubrication effects of the ...
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