Results 21 to 30 of about 146 (125)

A multi-perspective method for gear efficiency and contact analysis

open access: yesResults in Engineering, 2023
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

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
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

open access: yes, 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   +2 more sources

Engineering Software Solution for Thermal Elastohydrodynamic Lubrication Using Multiphysics Software

open access: yesAdvances in Tribology, Volume 2016, Issue 1, 2016., 2016
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

open access: yesScientific Programming, Volume 1, Issue 2, Page 115-131, 1992., 1992
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

Effects of Solid Temperature and Ambient Pressure on Thermal Elastohydrodynamic Lubrication Solutions

open access: yesTribology Online
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]

open access: yesLubricants, 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   +1 more source

The Transient and Thermal Effects on EHL Performance of a Helical Gear Pair

open access: yesTribology Online, 2018
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

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
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]

open access: yesMechanical Sciences
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

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