Results 31 to 40 of about 144 (123)

Predicting Fatigue Life for Finite Line Contact under Starved Elastohydrodynamic Lubrication Condition

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
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

open access: yesNihon Kikai Gakkai ronbunshu, 2021
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

open access: yesLubricants, 2020
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

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

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

TEHL Analysis of Aero-engine Mainshaft Roller Bearing Based on Quasi-dynamics

open access: yesJixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering, 2016
exaly   +2 more sources

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