Transactions of the ASME . Journal of tribology, Vol. 133 N° 2. Journal of tribology :Transactions of the ASME - Avril 2011
| Titre : | Transactions of the ASME . Journal of tribology, Vol. 133 N° 2. Journal of tribology :Transactions of the ASME - Avril 2011 |
| Type de document : | Bulletin |
| Paru le : | 12/02/2012 |
Dépouillements
Article : texte imprimé
Jiang, Shuyun, Auteur ;
Hebing Mao, Auteur
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The oil-air lubrication system has been widely used for rolling ball bearing. However, as the rotation speed increases, the temperature rise will increase dramatically, resulting in shortening the service life of the ball bearing. The existing l[...]
Article : texte imprimé
Ohta, Hiroyuki, Auteur ;
Shinya Hayashi, Auteur ;
Kato, Soichiro, Auteur
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This paper deals with effects of grease types on vibrations and acoustic emissions (AEs) of linear-guideway type recirculating ball bearings with a millimeter-sized artificial defect in the carriage. First, the vibration and AE of one normal bea[...]
Article : texte imprimé
D. Anderson, Auteur ;
A. Warkentin, Auteur ;
R. Bauer, Auteur
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Simulation of deep indentation, and the associated pile-up effects, requires a robust and accurate finite element model capable of naturally handling the large deformations present. This work successfully demonstrates that the Eulerian formulati[...]
Article : texte imprimé
Benjamin D. Leonard, Auteur ;
Pankaj Patil, Auteur ;
Trevor S. Slack, Auteur
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A new approach for modeling fretting wear in a Hertzian line contact is presented. The combined finite-discrete element method (FDEM) in which multiple finite element bodies interact as distinct bodies is used to model a two-dimensional fretting[...]
Article : texte imprimé
S. M. Shariff, Auteur ;
T. K. Pal, Auteur ;
G. Padmanabham, Auteur
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Understanding the wear behavior of various railroad steels used in different components such as rails, wheels, crossings, and curves has a direct impact on the performance of the rail-wheel system in railroad technology. In the present investiga[...]
Article : texte imprimé
David Huitink, Auteur ;
Tahira Zarrin, Auteur ;
Matthew Sanders, Auteur
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Similar to conventional engineering fabrication processes, tribological performance of drugs and pills in pharmaceutical manufacturing plays an important role in quality and product yields. In the present research, we investigate the effects of [...]
Article : texte imprimé
Kadry Zakaria, Auteur ;
Magdy A. Sirwah, Auteur ;
M. Fakharany, Auteur
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The aim of this study is to explore the static and dynamic performance characteristics of finite journal bearings lubricated with a non-Newtonian ferrofluid in the presence of an external magnetic field using the spectral method technique. The m[...]
Article : texte imprimé
Nenzi Wang, Auteur ;
Shih-Hung Chang, Auteur ;
Hua-Chih Huang, Auteur
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This study presents an efficacy comparison of iterative solution methods for solving the compressible-fluid Reynolds equation in modeling air- or gas-lubricated bearings. A direct fixed-point iterative (DFI) method and Newton's method are employ[...]
Article : texte imprimé
Donghyun Lee, Auteur ;
Daejong Kim, Auteur ;
Ramesh P. Sadashiva, Auteur
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Oil-free turbomachinery have emerged as one of the core technologies for the future green power generation systems as stand-alone systems or hybridized with high temperature fuel cells or solar systems. Oil-free technology allows compact, clean,[...]
Article : texte imprimé
Y. Qiu, Auteur ;
M. M. Khonsari, Auteur
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A mass-conservative algorithm that implements the Jakobsson–Floberg–Olsson cavitation theory is used to predict the performances of seal-like structures and thrust bearings with a dimpled surface texture. The results of a series of simulations f[...]
Article : texte imprimé
Andreas Almqvist, Auteur
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In this paper, a method facilitating the analysis of the effects of surface roughness on the lubrication of a rotating device is presented. The analysis utilizes homogenization—a suitable technique for averaging the effects of roughness as model[...]
Article : texte imprimé
Guangbin Yang, Auteur ;
Zhanming Zhang, Auteur ;
Guihui Li, Auteur
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Three kinds of S- and P-free borate esters containing N with different alkyl chain lengths were prepared by using boric acid, ethanolamine, and alkyl-alcohol as the starting materials. The chemical structure of the products was analyzed by means[...]
Article : texte imprimé
Hongyuan Zhao, Auteur ;
Ardian Morina, Auteur ;
Anne Neville, Auteur
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The frictional characteristics of some basic additive systems used in automatic transmission fluids (ATFs) were assessed using a variable speed friction test machine. The test evaluates the coefficient of friction in unidirectional sliding conta[...]
Article : texte imprimé
James White, Auteur
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Discrete track recording (DTR) is a method for increasing the recording density of a data storage disk by use of a pattern arrangement of discrete tracks. The DTR track structure consists of a pattern of very narrow concentric raised areas and r[...]
Article : texte imprimé
Sripathi Vangipuram Canchi, Auteur ;
David B. Bogy, Auteur
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Thermal fly-height control sliders are widely used in current hard disk drives to control and maintain subnanometer level clearance between the read-write head and the disk. The peculiar dynamics observed during touchdown/contact tests for certa[...]
Article : texte imprimé
M. Fesanghary, Auteur ;
M. M. Khonsari, Auteur
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The implementation of the mass-conservative cavitation algorithm, as derived by Elrod, requires an automatic setting of a binary switch function that delineates the full-film and cavitation zones. Abrupt changes associated with this function oft[...]
Article : texte imprimé
Anthony P. Sanders, Auteur ;
Rebecca M. Brannon, Auteur
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Laboratory testing of contact phenomena can be prohibitively expensive if the interacting bodies are geometrically complicated. This work demonstrates means to mitigate such problems by exploiting the established observation that two geometrical[...]
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