Transactions of the ASME . Journal of tribology, Vol. 134 N° 3. Journal of tribology :Transactions of the ASME - Juillet 2012
| Titre : | Transactions of the ASME . Journal of tribology, Vol. 134 N° 3. Journal of tribology :Transactions of the ASME - Juillet 2012 |
| Type de document : | Bulletin |
| Paru le : | 21/10/2012 |
Dépouillements
Article : texte imprimé
Jung Gu Lee, Auteur ;
Palazzolo, Alan, Auteur
|
Catcher bearings (CB) are an essential component for rotating machine with active magnetic bearings (AMBs) suspensions. The CB's role is to protect the magnetic bearing and other close clearance component in the event of an AMB failure. The cont[...]
Article : texte imprimé
Kyuho Sim, Auteur ;
Yong-Bok Lee, Auteur ;
Tae Ho Kim, Auteur
|
Oil-free turbochargers (TCs) will increase the power and efficiency of internal combustion engines, both sparking ignition and compression ignition, without engine oil lubricant feeding or scheduled maintenance. Using gas foil bearings (GFBs) in[...]
Article : texte imprimé
Caroline Bagault, Auteur ;
Daniel Nélias, Auteur ;
Marie-Christine Baietto, Auteur
|
A contact model using semi-analytical methods, relying on elementary analytical solutions, has been developed. It is based on numerical techniques adapted to contact mechanics, with strong potential for inelastic, inhomogeneous or anisotropic ma[...]
Article : texte imprimé
Based on the Greenwood and Williamson theory, an assumption about the contact-area size of asperities on rough surfaces is proposed under the premise that the height of these asperities on rough surfaces is a Gaussian distribution. A formula has[...]
Article : texte imprimé
Jose M. García, Auteur ;
Ashlie Martini, Auteur
|
A numerical model to predict static friction for metallic point contacts was developed and validated by comparison to experimental measurements using a specially designed test rig. Key aspects of the numerical model were the incorporation of a d[...]
Article : texte imprimé
Li-Ming Chu, Auteur ;
Jaw-Ren Lin, Auteur ;
Wang-Long Li, Auteur
|
The coupled extended Reynolds (which includes the effects of Navier-slip and flow rheology), elasticity deformation, and the load equilibrium (under a constant load condition) equations are solved simultaneously for the EHL problems. Results sho[...]
Article : texte imprimé
HyunWook Lee, Auteur ;
Corina Sandu, Auteur ;
Carvel Holton, Auteur
|
The coefficient of friction (CoF) is a very important factor for designing, operating, and maintaining the wheel-rail system. In the real world, accurate estimation of the CoF at the wheel-rail interface is difficult due to the effects of variou[...]
Article : texte imprimé
Xue-song Li, Auteur ;
Yin Song, Auteur ;
Zeng-rong Hao, Auteur
|
Cavitation phenomenon in lubricants significantly influences the performance of associated machinery. In this paper, the cavitation mechanism of an oil-film bearing is attributed to gaseous cavitation, and a new gaseous cavitation model based on[...]
Article : texte imprimé
V. Brizmer, Auteur ;
Y. Kligerman, Auteur
|
The potential use of laser surface texturing (LST) in hydrodynamic journal bearings is examined theoretically. The regular surface texture has the form of micro-dimples with preselected diameter, depth, and area density. It can be applied to onl[...]
Article : texte imprimé
Shangwu Xiong, Auteur ;
Q. Jane Wang, Auteur
|
Steady-state smooth surface hydrodynamic lubrications of a pocketed pad bearing, an angularly grooved thrust bearing, and a plain journal bearing are simulated with the mass-conservation model proposed by Payvar and Salant. Three different finit[...]
Article : texte imprimé
Saeid Dousti, Auteur ;
Jianming Cao, Auteur ;
Amir Younan, Auteur
|
This paper extends the theory originally developed by Tichy (Tichy and Bou-Said, 1991, Hydrodynamic Lubrication and Bearing Behavior With Impulsive Loads,” STLE Tribol. Trans. 34, pp. 505–512) for impulsive loads to high reduced Reynolds number [...]
Article : texte imprimé
James White, Auteur
|
Low clearance gas bearing applications require an understanding of surface roughness effects at increased levels of Knudsen number. Because very little information has been reported on the relative air-bearing influence of roughness location, th[...]
Article : texte imprimé
Mickaël Kargulewicz, Auteur ;
Ivan Iordanoff, Auteur ;
Victor Marrero, Auteur
|
Magnetorheological (MR) fluids are fluids whose properties vary in response to an applied magnetic field. Such fluids are typically composed of microscopic iron particles (~1-20µm diameter, 20-40% by volume) suspended in a carrier fluid such as [...]
Article : texte imprimé
Jeng Luen Liou, Auteur ;
Yi Hsing Sun, Auteur ;
Jen Fin Lin, Auteur
|
In the present study, two commercial greases with different rheological properties were subjected to four-ball tests to identify their performance in anti-wear and anti-scuffing. A wear test machine equipped with a data acquisition system was us[...]
Article : texte imprimé
Lin Shui, Auteur ;
Yi Zhou, Auteur ;
Guoru Zhang, Auteur
|
Owing to the requests of exploring environment-friendly and multifunctional lubricant additives, three novel imidazoline-type thiadiazole derivatives are prepared and used as lubricant additives in two biodegradable base stocks, colza oil and sy[...]
Article : texte imprimé
Wei Hua, Auteur ;
Shengkai Yu, Auteur ;
Zhou Weidong, Auteur
|
An unstructured triangular mesh is successfully applied to the static simulations of air bearing sliders due to its flexibility, accuracy and mesh efficiency in capturing various complex rails and recess wall regions of air bearing surface, as w[...]
Article : texte imprimé
Lefeng Wang, Auteur ;
Weibin Rong, Auteur ;
Bing Shao, Auteur
|
The contact model for rough surfaces with power-law axisymmetric asperities in the presence of adhesion is developed. The extended JKR adhesive contact model for power-law axisymmetric asperities, denoted as JKR-n, developed by Zheng and Yu (200[...]
Article : texte imprimé
Xinlei Gao, Auteur ;
Jian Li, Auteur ;
Wanzhen Gao, Auteur
|
Poly-alpha-olefin (PAO) is an important synthetic fluid in the field of industry lubricants. To improve the tribological properties of PAO, a Schiff base copper complex was added to the lubricants. The tribological properties of steel and steel [...]
Article : texte imprimé
Medhat S. Farahat Khedr, Auteur
|
The magnetic tape industry applies a mixture of stearic acid/butylstearate as a lubricant mixture in their formulation. This lubricant system has several disadvantageous points since it enhances corrosion to the GMR head, due to the existence of[...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
