Results 81 to 90 of about 705 (209)

Coupling strategies for finite element modeling of thermal elastohydrodynamic lubrication problems [PDF]

, 2018
This paper investigates coupling strategies for finite element modeling (FEM) of thermal elastohydrodynamic lubrication (TEHL) problems. The TEHL problem involves a strong coupling between several physics: solid mechanics, fluid mechanics, and heat ...
Habchi, W.
core   +1 more source

Multi-Physical Field, Coupled, Mixed Lubrication Analysis of Hydraulic Reciprocating Vacuum Lip Seal

Machines
Engineering practice has demonstrated that seal failure can result in severe leakage and wear, reducing the efficiency of hydraulic systems and even leading to major safety risks.
Yan Zhao, Zhihui Cai, Ziming Feng, Wenzheng Chen, Heng Yuan   +4 more
doaj   +1 more source

Effects of boundary slips on thermal elastohydrodynamic lubrication under pure rolling and opposite sliding contacts

, 2020
In elastohydrodynamic lubrication (EHL) contact, the film thickness strongly depends on boundary slips, including velocity slip and thermal slip at the solid–lubricant interface. In the EHL studies published thus far, velocity slip at the solid–lubricant
15351, 西川, 宏志, 6507439340, 0000-0002-6836-9387, 28, 56244837500, 60370029, 長山, 暁子, Wang, Jing, Nishikawa, Hiroshi, 34217, ナガヤマ, ギョウコ, Meng, Xianghua, 40208161, 19927, ニシカワ, ヒロシ, 31, 34218, Nagayama, Gyoko   +18 more
core   +1 more source

Thermal effects in elastohydrodynamic lubrication of circular and elliptic contacts

, 1992
The Purpose of this research has been to develope an analytical model to investigate the thermal elastohydrodynamic lubrication of circular and elliptic contact with rolling/sliding and to design a test rig to measure the film thickness to verify the ...
Kim, Kyung-Hoon
core  

Research on the Lubrication and Thermal Effects of Single-Metal Seals on Sealing Performance

Lubricants
This paper investigates the impact of lubrication and thermal effects on the performance of single-metal seals in roller cone bits, and it establishes the geometric, material, and operating parameter models for the single-metal seal.
Weidong Meng, Haijuan Wang, Hai Ma, Yi Zhang, Li Yao   +4 more
doaj   +1 more source

Elastohydrodynamic lubrication in rolling and sliding contacts

, 1989
Elastohydrodynamic (EHD) lubrication is a form of fluid-film lubrication where the elastic deformation of the lubricated machine element in the contact region is significant. Under EHD lubrication, the pressure and temperature induced by the hydrodynamic
Sui, Ping Chun
core  

Analysis of Flash Temperature Characteristic of the Roller Enveloping End Face Engagement Worm Drive

Jixie chuandong, 2020
In order to improve the scuffing load capacity and study the flash temperature of roller enveloping end face engagement worm drive， the mathematical model of friction coefficient between end face worm gear and roller gear under elastohydrodynamic ...
Xiaolong Wang
doaj  

The Effects of the Lubricant Properties and Surface Finish Characteristics on the Tribology of High-Speed Gears for EV Transmissions

Lubricants
Electric vehicle (EV) transmissions operate at high speeds. High-speed operation puts higher demands on bearings, seals, and gears. Bearings in EV transmissions are prone to electrically induced bearing damage and may exhibit signs of pitting and fluting.
Boris Zhmud, Morteza Najjari, Boris Brodmann   +2 more
doaj   +1 more source

Effect of Centrifugal Adhesion of Pollutant on Thermal Elastohydrodynamic of Water-lubricated Hybrid Journal Bearing

Jixie chuandong, 2018
The elastohydrodynamic lubrication geometric model of centrifugal pollutants adhesion is established. The thermal elastohydrodynamic numerical simulation of water-lubricated hybrid journal bearings considering its lubricant pollution problem is carried ...
Zhang Tonggang, Wang Youqiang, Wang Limei, Xu Caihong   +3 more
doaj  

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

Lubricants
This paper is the second part of a two-part report studying the responses of a typical point-contact elastohydrodynamic lubrication (EHL) system to multiscale roughness mimicked by wavy surfaces.
Yuechang Wang, Ying Liu
doaj   +1 more source