Results 1 to 10 of about 144 (123)
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TEHL simulation on the influence of lubricants on load-dependent gear losses
Tribology International, 2017Abstract A transient TEHL simulation model based on a finite element formulation and implemented in multiphysics software is applied to study the TEHL contact along the path of contact of spur gears with a focus on load-dependent gear loss of different lubricants. Lubricant properties including the limiting shear stress are based on measurement data.
Andreas Ziegltrum +2 more
exaly +2 more sources
On the prediction of friction coefficient and wear in spiral bevel gears with mixed TEHL
Tribology International, 2017Abstract A prediction model of the friction coefficient and wear of the spiral bevel gears in the mixed lubrication condition is proposed. Effect of a coupling thermo-elasto-hydrodynamic phenomenon on tooth surface should be considered comprehensively prior to the execution of tooth wear analysis.
Shao-Jun Liu
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Numerical analysis of TEHL line contact problem under reciprocating motion
Tribology International, 2005Abstract This paper presents a full numerical analysis to simulate the thermal elastohydrodynamic lubrication (TEHL) of steel–steel line contact problem under reciprocating motion. The equation system is solved using multigrid techniques. General tribological behaviors of TEHL under reciprocating motion are explained.
M Kaneta
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Stability analysis of rough journal bearings under TEHL with non-Newtonian lubricants
Tribology International, 2010Abstract The combined effects of surface roughness and lubricants rheology on stability of a rigid rotor supported on finite journal bearing under thermal elastohydrodynamic lubrication have been investigated using the transient method. The newly derived time dependent modified Reynolds and the adiabatic energy equations were formulated using a non ...
Mongkol Mongkolwongrojn
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Formation of Steady Dimples in Point TEHL Contacts
Journal of Tribology, 2000Experimental results of steady dimples measured in elliptical glass-steel contact under pure sliding conditions are presented. It is found that two dimples connected with a shallower furrow are generated, each near an end of the major radius of the contact ellipse. The complete solution of the corresponding thermal elastohydrodynamic lubrication (TEHL)
P. Yang, S. Qu, M. Kaneta, H. Nishikawa
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Characterization of TEHL contacts of thermoplastic gears
Forschung im Ingenieurwesen, 2017Thermoplastic materials generally show low specific weight, low coefficients of friction, noise damping behavior and demonstrate low-cost manufacturing by injection molding. This qualifies thermoplastics for the use in lightweight gear design and more generally for an increase in resource efficiency.
Enzo Maier +3 more
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Effects of Oblique Roughness on TEHL Point Contacts
Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics, 2006The effects of surface roughness with different orientations on thermal elastohydrodynamic lubrication (TEHL) are studied based on Eyring fluid flow model under simple sliding point contacts. The effects of the amplitude and wavelength of longitudinal roughness on TEHL point contacts are also discussed under rolling and/or sliding conditions.Copyright ©
J. Wang, T. Inumaru, M. Kaneta
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On the TEHL Theory. Part I: Dimensionless Problem Formulation
Tribology Transactions, 1992Since the thermoelastohydrodynamic and elastohydrodynamic lubrication (TEHL and EHL) problems are predominantly heat transfer (HT) and/or fluid mechanics (FM) problems, it is proposed that the pertinent dimensionless quantities defined, in some instances tabulated, and commonly used in these branches of engineering science (HT and FM) should be used ...
Czeslaw M. Rodkiewicz, Keping Hou
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