Results 11 to 20 of about 1,846,052 (196)
Shock and Vibration, 2019 Lubrication failures of axle box bearings can lead to accidents, such as bearing burnout and hot axle cutting. Presently, the modeling of the vehicle-track system dynamics rarely considers the nonlinear contact load of axle box bearings, and this leads ...
Junzhou Huo +4 more
doaj +2 more sources
A study of thermal effects in EHL rheology and friction using infrared microscopy [PDF]
Tribology International, 2020 Abstract Infrared microscopy is used to obtain through-thickness oil temperature measurements from EHL contacts between different surface materials (steel, silicon nitride and zirconia) for the lubricants Santotrac 50 and PAO4. The measurement technique was first adapted to overcome focussing issues due to the partially transparent zirconia surface ...
Lu, J, Reddyhoff, T, Dini, D
openaire +3 more sources
High Order Finite Element Solution of Elastohydrodynamic Lubrication Problems [PDF]
, 2006 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
core +8 more sources
Efficient finite element simulation of full-system elastohydrodynamic lubrication problems [PDF]
, 2012 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
Thermal Elastohydrodynamic Analysis of a Worm Gear
Machines, 2023 This study explores the elastohydrodynamic lubrication (EHL) between the contacting tooth flanks of a worm gear with nonconjugate meshing action. The contact is characterized by a slender-like elliptical shape and high sliding.
Marko Tošić +3 more
doaj +1 more source
An Analytical Approach for Predicting EHL Friction: Usefulness and Limitations
Lubricants, 2022 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
Lubricants, 2020 Machine components are designed to endure increasingly severe operating conditions due to the strive for improved energy efficiency of mechanical systems.
Tobias Hultqvist +3 more
doaj +1 more source
Lubricants, 2022 Understanding the responses of tribosystems to multiscale roughness is fundamental for the identification of the relevant roughness scales. This work used a point-contact elastohydrodynamic lubrication (EHL) problem as a representative tribosystem and ...
Yuechang Wang +3 more
doaj +1 more source
Surface Roughness Effects under High Sliding EHL Conditions
Tribology Online, 2016 This paper is focused on the roughness induced effects in EHL contact under high sliding conditions when thermal effects can be expected. High sliding conditions include both the case when both surfaces are moving in the same direction and that when they
Petr Sperka, Ivan Krupka, Martin Hartl
doaj +1 more source
Study on friction characteristics of angular contact ball bearing with local defects
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023 The high-speed angular contact ball bearing(ACBB) works under the coupling action of temperature field, electromagnetic field and other fields for a long time, so it is easy to produce local faults.
Kai LIU +3 more
doaj +1 more source