Results 21 to 30 of about 705 (209)

Effects of Solid-liquid Interfacial Resistance on Thermal Elastohydrodynamic Lubrication

open access: yesEffects of Solid-liquid Interfacial Resistance on Thermal Elastohydrodynamic Lubrication
1. Introduction||2. Theory of thermal elastohydrodynamic lubrication||3. Numerical analysis of boundary slips for thermal point EHL contact||4. Experimental study on lubrication with oleophobic coating||5.
Meng, Xianghua
openaire   +1 more source

Transient mixed thermo-elastohydrodynamic lubrication in multi-speed transmissions [PDF]

open access: yes, 2012
Noise, vibration and harshness (NVH) refinement as well as thermo-mechanical efficiency are the key design attributes of modern compact multi-speed transmissions.
Teodorescu, M.   +14 more
core   +1 more source

Positive Effect of Periodic Micropatterns on Compression Ring Friction

open access: yesAdvanced Engineering Materials, Volume 25, Issue 14, July 2023., 2023
For internal combustion engines, reducing friction is becoming increasingly important to reduce emissions. It is shown that laser‐interference‐induced microtextures on amorphous carbon‐coated piston rings are able to significantly reduce the friction of the piston assembly when tested in single‐cylinder engines.
Björn Michelberger   +7 more
wiley   +1 more source

Transient torque reversals in indirect drive wind turbines

open access: yesWind Energy, Volume 26, Issue 7, Page 691-716, July 2023., 2023
Abstract The adverse effect of transient torque reversals (TTRs) on wind turbine gearboxes can be severe due to their magnitude and rapid occurrence compared with other equipment. The primary damage is caused to the bearings as the bearing loaded zone rapidly changes its direction.
Saptarshi Sarkar   +2 more
wiley   +1 more source

Tribology of dust‐stop seals of mixing machines

open access: yesLubrication Science, Volume 35, Issue 3, Page 193-206, April 2023., 2023
Abstract Dust stop seals are widely used in powder and rubber mixing industries. Design of the sealing system requires a continuous supply of pressurised lubricant, which is not recycled because of the risk of contamination. There is also the potential of large volume leakage of oil due to poor sealing, increasing operational costs and necessitating ...
Ehsan Fatourehchi   +5 more
wiley   +1 more source

Cavitation induced starvation for piston-ring/liner tribological conjunction [PDF]

open access: yes, 2011
The study investigates the mechanism of ring-liner lubrication in the vicinity of the top and bottom dead centres of an internal combustion engine. Predicting lubricant transient behaviour is critical when the inlet reversal leads to thin films and ...
Teodorescu, M.   +7 more
core   +1 more source

A Numerical Study on Thermal Elastohydrodynamic Lubrication of Coated Polymers [PDF]

open access: yesTribology Letters, 2020
AbstractThe application of polymers in power-transmitting machine elements, e.g., gears, is limited by moderate thermo-mechanical properties and the detrimental accumulation of contact heat, even with external lubrication. Hence, polymer rolling–sliding elements are often prone to thermo-mechanical overload or abrasive wear.
A. Ziegltrum   +3 more
openaire   +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

Power Law Fluid Model for Thermal Elastohydrodynamic Lubrication

open access: yesJournal of Advances in Mathematics and Computer Science, 2021
The aim of this paper is to analyse thermal elastohydrodynamic lubrication (TEHL) line contact of rolling a bearing using a non-Newtonian uid that is described by the power law model. The performance characteristics of the rolling bearing are determined for various index for dilatant, Newtonian and pseudo plastic uids.
Duncan Kioi Gathungu   +1 more
openaire   +2 more sources

A New Thermal Elasto-Hydrodynamic Lubrication Solver Implementation in OpenFOAM

open access: yesLubricants, 2023
Designing effective thermal management systems within transmission systems requires simulations to consider the contributions from phenomena such as hydrodynamic lubrication regions.
James Layton   +5 more
doaj   +1 more source

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