Results 11 to 20 of about 377 (140)
Transient conformal TEHL algorithms for multibody simulation [PDF]
Modeling, Identification and Control, 2018 This article describes aspects of transient thermal elasto-hydrodynamical lubrication (TEHL) contact modelling for conformal contacts. This is to be utilized in a multibody simulation (MBS) framework for engineering purposes.
Dag Fritzson
doaj +4 more sources
A Micro-TEHL Finite Line Contact Model for a Helical Gear Pair
Advances in Mechanical Engineering, 2015 A micro-TEHL finite line contact model for a helical gear pair is developed by considering sinusoidal waviness on tooth surfaces. Effects of working conditions, the amplitude, and the wavelength of the waviness roughness on the lubrication performance ...
Mingyong Liu, Caichao Zhu, Huaiju Liu
doaj +3 more sources
Lubricated Loaded Tooth Contact Analysis and Non-Newtonian Thermoelastohydrodynamics of High-Performance Spur Gear Transmission Systems [PDF]
Lubricants, 2020 Energy efficiency and functional reliability are the two key requirements in the design of high-performance transmissions. Therefore, a representative analysis replicating real operating conditions is essential.
Gajarajan Sivayogan +2 more
doaj +9 more sources
TEHL Simulation on the Influence of Lubricants on the Frictional Losses of DLC Coated Gears [PDF]
Lubricants, 2018 Diamond-Like Carbon (DLC) coatings can reduce fluid friction in TEHL contacts (thermo-elastohydrodynamic lubrication) of meshing gears. This study investigates the influence of different base oils i.e., mineral, polyalphaolefin and polyglycol oil on the friction of DLC coated spur gears.
Andreas Ziegltrum +2 more
openaire +2 more sources
A numerical investigation of surface waviness effects on TEHL in line contacts
, 2022 Comprehensive knowledge of the effects of surface roughness on Thermal Elastohydrodynamic Lubrication (TEHL) in e.g. bearing and gear contacts allows us to predict the precise lubrication conditions, stress distributions and consequently the service life of these mechanical components more accurately.
Havaej, Peyman +2 more
openaire +3 more sources
ComputationA bidirectional tribo-dynamic coupled model for a double-helical gear transmission is established by integrating tooth surface wear, thermal elastohydrodynamic lubrication (TEHL), eccentricity error, tooth profile error, and temperature-induced ...
Yun Wang +7 more
doaj +2 more sources
On Friction Reduction by Surface Modifications in the TEHL Cam/Tappet-Contact-Experimental and Numerical Studies [PDF]
Coatings, 2019 The overall energy efficiency of machine elements and engine components could be improved by using new technologies such as surface modifications. In the literature, surface engineering approaches like micro-texturing and the application of diamond-like carbon (DLC) coatings were frequently studied separately, with focus on a specific model contact and
Max Marian, Tim Weikert, Stephan Tremmel
openaire +3 more sources
Tribology InternationalConventional Thermo-Elastohydrodynamic Lubrication (TEHL) simulations, while accurate, are computationally expensive and impractical for system-level analyses. In this study, Artificial Neural Network (ANN)-based surrogate models were developed for predicting key TEHL outputs, including Coefficient of Friction (CoF), rolling friction, maximum ...
Peyman Havaej, Dieter Fauconnier
openaire +2 more sources
Adjoint Error Estimation for Elastohydrodynamic Lubrication [PDF]
, 2008 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
core +9 more sources
Transient mixed lubrication model of the human knee implant
Biosurface and Biotribology, Volume 7, Issue 4, Page 206-218, December 2021., 2021 Abstract The human knee implant is computationally modelled in the mixed lubrication regime to investigate the tribological performance of the implant. This model includes the complex geometry of the implant components, unlike elliptical contact models that approximate this geometry.
Hamza Butt +5 more
wiley +1 more source