Results 1 to 10 of about 532 (172)

Thermal Effects in Slender EHL Contacts

open access: yesLubricants, 2022
This study deals with experimental and numerical analysis of the thermal effects of slender elastohydrodynamically lubricated (EHL) contacts under high sliding. Thereby, the entrainment direction is along the major axis of the contact ellipse.
Marko Tošić   +2 more
doaj   +4 more sources

Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - Effect of Inlet Oil Temperature -

open access: yesTribology Online, 2008
Under the same EHL contact conditions as in the traction experiments carried out by Wedeven et al., the authors performed a non-Newtonian thermal EHL analysis.
Toshifumi Mawatari   +2 more
doaj   +6 more sources

Influence of Manufacturing Error Tolerances on Thermal EHL Behavior of Gears

open access: yesLubricants, 2022
Due to the electrification of vehicles, new demands are being imposed on gears, which translates to the tolerances of manufacturing errors. However, not many studies treat the impact of manufacturing error combinations on the lubricant behavior of gear ...
Rikard Hjelm, Jens Wahlström
doaj   +4 more sources

Shear Stress Analysis of EHL Oil Films Based on Thermal EHL Theory - In the Case of Elliptical Contact Condition -

open access: yesTribology Online, 2009
Under the elliptical contact conditions with an ellipticity parameter of Ke=1.4, a non-Newtonian thermal EHL analysis was carried out. The lubricating oil was assumed to behave as a Maxwell fluid.
Toshifumi Mawatari, Akira Nakajima
doaj   +6 more sources

Precision Lignocellulosic Biorefinery: Process Regulation From Corn Stover to Products. [PDF]

open access: yesAdv Sci (Weinh)
This study presents a precision biorefinery framework that transforms corn stover into high‐value bioproducts through whole‐process regulation. Mechanical fractionation separates feedstock into parenchyma‐rich short fibers and vascular‐bundle‐dominant long fibers.
Lin XC   +4 more
europepmc   +2 more sources

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   +3 more sources

Thermoregulation in hot-dry and warm-humid heat stress during cycling among males [PDF]

open access: yesFrontiers in Physiology
IntroductionHot-dry (HD) and warm-humid (WH) environments with equivalent wet-bulb globe temperature (WBGT) may be expected to produce similar physiological strain; however, previous studies have reported divergent thermoregulatory and cardiovascular ...
Xiujing Zhao   +6 more
doaj   +2 more sources

Experimental analysis of the thermal management and internal quantum efficiency of terahertz quantum cascade laser harmonic frequency combs. [PDF]

open access: yesNanophotonics
Abstract Quantum cascade laser (QCL) harmonic state frequency combs (HFCs) have recently attracted considerable interest for applications ranging from the generation of tones of high spectral purity, high data rate wireless communication networks, radiofrequency arbitrary waveform synthesis, and for fundamental light‐matter investigations in quantum ...
Guerrero MAJ   +6 more
europepmc   +2 more sources

Thermal Surface Texture EHL Analysis of Water- lubricated Tenmat Bearing

open access: yesJixie chuandong, 2016
The elastohydrodynamic lubrication geometric model of surface texture bearing is set up. The numerical simulation of elastohydrodynamic lubrication property of water- lubricated tenmat bearing with circular dimple,rectangular dimple and triangular ...
Dong Ning   +3 more
doaj   +1 more source

An Improved Load Distribution Model for Gear Transmission in Thermal Elastohydrodynamic Lubrication

open access: yesLubricants, 2023
The gear drive generally operates in elastohydrodynamic lubrication (EHL) contacts, and the existence of oil film effectively reduces wear and improves transmission stability.
Ruxin Lu   +3 more
doaj   +1 more source

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