Surface contact fatigue is the main failure mode in many mechanical components, such as gears, bearings, and cam‐followers. A fatigue life prediction model is proposed for finite line contact under starved thermal elastohydrodynamic lubrication (TEHL) condition in this paper.
Mingyong Liu +5 more
wiley +1 more source
Experimental verification of frequency effects in tilting pad journal bearing dynamic coefficients
In this paper, vibrational frequency effect in dynamic coefficients of tilting pad journal bearing is verified experimentally. Tilting pad journal bearings (TPJB) is applied in various turbomachinery. Accurate evaluation of the bearing characteristics of
Nobuhiro NAGATA +3 more
doaj +1 more source
Friction and Temperature Behavior of Lubricated Thermoplastic Polymer Contacts
This work focuses on the friction and temperature behavior of thermo-elastohydrodynamically lubricated (TEHL) contacts under rolling-sliding conditions.
Stefan Reitschuster +3 more
doaj +1 more source
A multi-perspective method for gear efficiency and contact analysis
Modern gearing applications, in particular electrification, impose new challenges in many different fields of engineering and research. In specific, new demands are imposed on gears, including higher rotational speed, lower noise acceptance, and ...
Rikard Hjelm +7 more
doaj +1 more source
TEHL Analysis of Rough Surface Spur Gears with Non-Newtonian Lubricants under Sudden Overloads
The time-dependent modified Reynolds equation, elasticity equation, and energy equation with initial conditions were formulated and solved numerically using a multi-grid multilevel with full approximation technique for an involute spur gear.
Mongkolwongrojn MONGKOL +1 more
doaj +1 more source
A numerical investigation of surface waviness effects on TEHL in line contacts
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 +2 more sources
Engineering Software Solution for Thermal Elastohydrodynamic Lubrication Using Multiphysics Software
The complexity of thermal elastohydrodynamic lubrication (TEHL) problems has led to a variety of specialised numerical approaches ranging from finite difference based direct and inverse iterative methods such as Multilevel Multi‐Integration solvers, via differential deflection methods, to finite element based full‐system approaches.
Thomas Lohner +4 more
wiley +1 more source
Object‐Oriented Heterogeneous Database for Materials Science
As a part of the scientific database research underway at the Oregon Graduate Institute, we are collaborating with materials scientists in the research and development of an extensible modeling and computation environment for materials science. Materials scientists are prolific users of computers for scientific research.
David Hansen +3 more
wiley +1 more source
TEHL Simulation on the Influence of Lubricants on the Frictional Losses of DLC Coated Gears [PDF]
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 +1 more source
TEHL Analysis of Aero-engine Mainshaft Roller Bearing Based on Quasi-dynamics
exaly +2 more sources

