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
Tribological machine elements, such as rolling element bearings and gears, are often used in mechanical components and various industrial applications. The contact interfaces and sliding parts fundamentally consist of two solid and one liquid lubricant ...
Toshiharu Kazama
doaj +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
The Transient and Thermal Effects on EHL Performance of a Helical Gear Pair
A non-Newtonian numerical solution system for the transient thermo-elastohydrodynamic lubrication (TEHL) model has been proposed for a helical gear pair with the finite line contact theory. This model is used to comprehensively show the transient effect,
Mingyong Liu, Yadong Liu, Chenhui Wu
doaj +1 more source
Influence of physical-property models on thermal elastohydrodynamic lubrication solutions
This study numerically obtains the thermal elastohydrodynamic lubrication (TEHL) solutions of different physical-property models of five lubricants and different thermal properties of the solids.
Toshiharu KAZAMA
doaj +1 more source
Research on the meshing load-bearing characteristics of the micro-textured thermoelastic hydrodynamic lubrication interface for a warship PRTS [PDF]
Gears are subjected to external excitation from alternating loads, and the micro-textured meshing interface (MTMI) will share larger contact stresses during the warship power rear transmission system (PRTS) torsional process.
J. Ruan, X. Wang, Y. Wang, W. Zou
doaj +1 more source

