Results 41 to 50 of about 358 (128)

A Computational Fluid Dynamics Study on Shearing Mechanisms in Thermal Elastohydrodynamic Line Contacts

Lubricants, 2019
A computational fluid dynamics (CFD) model of the thermal elastohydrodynamically lubricated (EHL) line contact problem has been developed for the purpose of exploring the physical processes that occur inside a thin EHL film subjected to shearing motion ...
Marko Tošić, Roland Larsson, Janko Jovanović, Thomas Lohner, Marcus Björling, Karsten Stahl   +5 more
doaj   +1 more source

Analysis of Thermal Elastohydronamic Lubrication of Inclined Double-roller Enveloping Hourglass Worm Drive

Jixie chuandong, 2018
To improve the lubrication performance,anti-scuffing capacity and efficiency of enveloping worm,the elastohydrodynamic lubrication（ EHL） line contact model is established based on the research of meshing performance of inclined double-roller enveloping ...
Ou Yue, Li Jinkuan, Zhu Yan, Liu Zaixin, Liao Honghui   +4 more
doaj  

In Situ Measurement and Mapping of Lubricant Film Temperature in Cylindrical Roller Thrust Bearings Using Thin-Film Sensors

Machines
This study explores the in situ measurement of contact temperature in thermo-elastohydrodynamic lubrication (TEHL) within cylindrical roller thrust bearings (CRTBs) utilizing vapour-deposited resistive thin-film sensors.
Manjunath Manjunath, Patrick De Baets, Dieter Fauconnier   +2 more
doaj   +1 more source

Mixed and thermal elastohydrodynamic simulation of a low-loss gear considering the gear system

Friction
The reduction of load-dependent gear power loss is one of the key aspects in gear design. Therefore, a detailed power loss prediction and the local investigation of its drivers are essential. In this study, the model of Farrenkopf et al.
Felix Farrenkopf, Thomas Lohner, Karsten Stahl   +2 more
doaj   +1 more source

Dual experimental-numerical study of oil film thickness and friction in a wide elliptical TEHL contact: From pure rolling to opposite sliding

Tribology International, 2023
Georges Amine, N. Fillot, D. Philippon, N. Devaux, J. Dufils, E. Macron   +5 more
semanticscholar   +1 more source

Coupling Study on Quasi-Static and Mixed Thermal Elastohydrodynamic Lubrication Behavior of Precision High-Speed Machine Spindle Bearing with Spinning

Machines
In this work, a modified numerical algorithm that couples the quasi-static theory with the mixed thermal elastohydrodynamic lubrication (mixed-TEHL) model is proposed to examine the mechanical properties and lubrication performance of the spindle bearing
Hao Liu, Yun Chen, Yi Guo, Yongpeng Shi, Dianzhong Li, Xing-Qiu Chen   +5 more
doaj   +1 more source

Thermal Elastohydrodynamic Lubrication Analysis of Grease in Tripod Sliding Universal Couplings

Lubricants
The tripod sliding universal coupling (TSUC) is a novel type of coupling developed through independent research. This study theoretically investigates the effects of the grease flow index and initial viscosity on thermal elastohydrodynamic lubrication ...
Xinchen Chen, Xia Xiu, Ye Zhou, Chenxin Dong, Degong Chang   +4 more
doaj   +1 more source

Effects of roller profile on grease lubrication and fatigue properties of RV reducer crankshaft

Engineering Applications of Computational Fluid Mechanics
Due to the prolonged operation of Rotate Vector (RV) reducers under harsh low-speed and heavy-load conditions, the crankshaft as its core transmission component is prone to fatigue failure.
Jianqi Guan, Zehua Han, Zhaoliang Cui, Yunfei Cai, Shengrong Chen, Rui Li, Xianghui Meng   +6 more
doaj   +1 more source

Experimental Investigation of a Highly Loaded Half-Journal Bearing

Lubricants
A dedicated experimental rig is presented for a half-journal bearing operating under highly loaded, well-controlled hydrodynamic lubrication conditions relevant to turbomachinery.
James Layton, Humberto Medina, Hasna Fadhila, Benjamin C. Rothwell, Stephen Ambrose, Katrina Farbrother, Carol Eastwick   +6 more
doaj   +1 more source

An Improved Stiffness Model for Spur Gear with Surface Roughness Under Thermal Elastohydrodynamic Lubrication

Mathematics
To investigate the contact performances and meshing characteristics of gears systematically, an improved comprehensive meshing stiffness model of spur gears with consideration of the tooth surface morphology, lubrication, friction, and thermal effects is
Shihua Zhou, Xuan Li, Chao An, Tengyuan Xu, Dongsheng Zhang, Ye Zhang, Zhaohui Ren   +6 more
doaj   +1 more source