Results 11 to 20 of about 62,392 (135)
High Order Finite Element Solution of Elastohydrodynamic Lubrication Problems [PDF]
In this thesis, a high-order finite element scheme, based upon the Discontinuous Galerkin (DG) method, is introduced to solve one- and two-dimensional Elastohydrodynamic Lubrication (EHL) problems (line contact and point contact). This thesis provides an
Lu, Hongqiang
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Adaptive Numerical Methods for Elastohydrodynamic Lubrication [PDF]
Numerical solutions to elastohydrodynamic lubrication problems have been computed for the last half century. Over the past decade multilevel techniques have been successfully applied in several solvers and significant speed-ups achieved.
Goodyer, Christopher Edward
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Efficient finite element simulation of full-system elastohydrodynamic lubrication problems [PDF]
This thesis is concerned with the efficient numerical solution of problems of elastohydrodynamic lubrication (EHL). Our approach is to consider fully-coupled models in which the governing equations for the lubricating film, the elastic deformation and ...
Ahmed, Sarfraz
core +6 more sources
Adjoint Error Estimation for Elastohydrodynamic Lubrication [PDF]
In this thesis, adjoint error estimation techniques are applied to complex elastohydrodynamic lubrication (EHL) problems. A functional is introduced, namely the friction, and justification is provided as to why this quantity, and hence its accuracy, is ...
Hart, Daniel Edward
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A multiscale method for optimising surface topography in elastohydrodynamic lubrication (EHL) using metamodels [PDF]
The frictional performance of a bearing is of significant interest in any mechanical system where there are lubricated surfaces under load and in relative motion. Surface topography plays a major role in determining the coefficient of friction for the bearing because the size of the fluid film and topography are of a comparable order.
De Boer, GN +5 more
openaire +4 more sources
Experimental results have confirmed that parallel rough surfaces can be separated by a full fluid film. However, such a lift-off effect is not expected by the traditional Reynolds theory.
Yuechang Wang +6 more
doaj +1 more source
Behaviors of a micro oil droplet in an EHL contact
Oil–air lubrication supplies lubricants in the form of droplets to elastohydrodynamic lubrication (EHL) contacts, such as those in high-speed spindle bearings.
Xinming Li +4 more
doaj +1 more source
This paper describes rheological properties of hydrodynamic and elastohydrodynamic lubrication (EHL) film under various contact pressure conditions using the fluorescence measurement method.
Takefumi OTSU
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An Analytical Approach for Predicting EHL Friction: Usefulness and Limitations
The article studies the friction coefficient in elastohydrodynamic lubrication (EHL) by means of analytically obtained equations for different contact geometries.
Javier Echávarri Otero +4 more
doaj +1 more source
Remarks on Modeling the Oil Film Generation of Rod Seals
The oil film generation of a U-cup rod seal and the oil film thickness on the rod after outstroke were analyzed analytically, numerically, and experimentally. The analyzed sealing system consists of an unmodified, commercially available U-cup, a polished
Oliver Feuchtmüller +3 more
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