Results 41 to 50 of about 1,842,362 (193)

Understanding the Influences of Multiscale Waviness on the Elastohydrodynamic Lubrication Performance, Part I: The Full-Film Condition

Lubricants, 2022
Understanding the responses of tribosystems to multiscale roughness is fundamental for the identification of the relevant roughness scales. This work used a point-contact elastohydrodynamic lubrication (EHL) problem as a representative tribosystem and ...
Yuechang Wang, Changlin Li, Jianjun Du, Ardian Morina   +3 more
doaj   +1 more source

Effect of fluid inertia force on thermal elastohydrodynamic lubrication of elliptic contact

Mechanics & Industry, 2021
A non-Newtonian thermal elastohydrodynamic lubrication (TEHL) model for the elliptic contact is established, into which the inertia forces of the lubricant is incorporated.
Meng Fan-Ming, Yang Sheng, Cheng Zhi-Tao, Zheng Yong, Wang Bin   +4 more
doaj   +1 more source

Power Law Fluid Model for Thermal Elastohydrodynamic Lubrication

Journal 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, Samuel Macharia Karimi   +1 more
openaire   +2 more sources

Influence of thermal shear localization on elastohydrodynamic contacts [PDF]

WIT Transactions on Engineering Sciences, 2012
The temperature in elastohydrodynamic contacts determines the resistance of the lubricant film. Therefore, an efficient assessment of the scuffing risks requires accurate contact temperature prediction. The work presented in this paper makes use of a simple temperature model to investigate the influence of thermal shear localization on the temperature ...
openaire   +1 more source

A thermodynamically consistent network model for high-speed bearings: Integrating micro-thermal constriction and macro-thermal dissipation

Case Studies in Thermal Engineering
Accurate characterization of the thermal field in high-speed rolling bearings is severely constrained by the multiscale complexity of interfacial heat transfer.
Gao Ruixuan, Li Yeteng, Ma Hao, Li Wei, Fang Bin, Ren Zhijun, Zhu Yongsheng   +6 more
doaj   +1 more source

Advancements and challenges in bionic joint lubrication biomaterials for sports medicine

Biosurface and Biotribology, Volume 10, Issue 3, Page 89-105, September 2024.
Abstract Bionic lubricant materials are a class of materials inspired by natural organisms and offer excellent lubrication properties and biocompatibility. In the field of sports medicine, their application opens up new possibilities for the prevention and treatment of sports‐related diseases.
Lei Xiang, Zhen Wang, Wenguo Cui
wiley   +1 more source

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

Lubricants, 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, Wencheng Tang, Qi Huang, Junjie Xie   +3 more
doaj   +1 more source

Tribological properties of real foods using extended Stribeck curves and their relationship with nutritional and rheological parameters

Journal of Texture Studies, Volume 55, Issue 4, August 2024.
Tribological properties of 19 commercial food products in 6 categories (yogurts, dressings, spreads, porridges, emulsified sauces, and syrups) were investigated. The extended Stribeck curves across the four frictional regimes (the static, boundary, mixed, and hydrodynamic regimes) varied depending on the flow behavior, nutritional compositions, and the
Jung Sun Hong, Mi‐Ran Kim, Yoo Jeong Choi, In‐Young Lee, Yong Gi Chun, Hae Won Jang, Bum‐Keun Kim   +6 more
wiley   +1 more source

Effect of nanoparticle additives on rough surface cylinder in line contact under TEHL with non-Newtonian lubricant

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
This paper presents the results of a transient analysis of thermal elastohydrodynamic lubrication (TEHL) of a rough cylinder on a rough flat surface in line contact with non-Newtonian lubricant blended with Al2O3 nanoparticles.
Mongkol MONGKOLWONGROJN, Sountaree RATTAPASAKORN   +1 more
doaj   +1 more source

Large‐Scale Numerical Simulation of the Solid Lubricant Behavior in the Leg Joints of Insects

Advanced Theory and Simulations, Volume 7, Issue 6, June 2024.
Semi‐solid lubricant in the insect legs joints is represented by cylindrical fragments with a diameter of ≈1 µm. The results of numerical simulation show that the fragments tend to adhesion and the formation of clumps of different shapes and sizes. Such a system allows maintaining clearance between surfaces while reducing friction and elimination of ...
Alexander E. Filippov, Konstantin Nadein, Stanislav N. Gorb, Alexander Kovalev   +3 more
wiley   +1 more source