Transactions of the ASME . Journal of tribology, Vol. 130 N°1. Journal of tribology :Transactions of the ASME - Janvier 2008
| Titre : | Transactions of the ASME . Journal of tribology, Vol. 130 N°1. Journal of tribology :Transactions of the ASME - Janvier 2008 |
| Type de document : | Bulletin |
| Paru le : | 09/04/2008 |
Dépouillements
Article : texte imprimé
C. J. Teo, Auteur ;
Z. S. Spakovszky, Auteur ;
S. A. Jacobson, Auteur
|
Ultrashort microscale high-speed gas bearings exhibit a whirl instability limit and dynamic behavior much different from conventional hydrostatic gas bearings. In particular, the design space for a stable high-speed operation is confined to a na[...]
Article : texte imprimé
Shuyu Zhang, Auteur ;
Brian D. Strom, Auteur
|
A new method is introduced for predicting particle and liquid droplet contamination on an air bearing surface. The method primarily relies on the analysis of flow patterns nearest the air bearing surface, restricted to two dimensions. In additio[...]
Article : texte imprimé
Daquan Liu, Auteur ;
Wen Zhang, Auteur ;
Tiesheng Zheng, Auteur
|
The variational approach, which is used to solve the Reynolds equation based on the assumption of constant temperature, is extended to the generalized Reynolds equation calculation. The direct solution method of the generalized Reynolds equation[...]
Article : texte imprimé
Neelesh Deolalikar, Auteur ;
Farshid Sadeghi, Auteur ;
Sean Marble, Auteur
|
Highly loaded ball and rolling element bearings are often required to operate in the mixed elastohydrodynamic lubrication regime in which surface asperity contact occurs simultaneously during the lubrication process. Predicting performance (i.e.[...]
Article : texte imprimé
K. Farhang, Auteur ;
L. E. Seitzman, Auteur ;
B. Feng, Auteur
|
A two-parameter function for estimation of projected area in instrumented indentation measurement is obtained to account for indenter tip imperfection. Imperfection near indenter tip is modeled using a spherical function and combined with a line[...]
Article : texte imprimé
Yang Lihua, Auteur ;
Qi Shemiao, Auteur ;
Yu Lie, Auteur
|
Although gas-lubricated tilting-pad bearings are widely used in high-speed turbomachinery, the theoretical prediction of the dynamic characteristics of tilting-pad gas bearings is also a very difficult problem because of its structural complexit[...]
Article : texte imprimé
Fengcai Wang, Auteur ;
Zhongmin Jin, Auteur
|
A general transient elastohydrodynamic lubrication model was developed for artificial hip joint implants, particularly in which the three-dimensional time-dependent physiological load and motion components experienced during walking conditions w[...]
Article : texte imprimé
Shuyu Zhang, Auteur ;
Brian Strom, Auteur ;
Sung-Chang Lee, Auteur
|
For a hard disk drive operating in a humid environment, the water vapor in the slider’s air bearing is typically compressed beyond its saturation vapor pressure, causing the vapor to condense. Consequently, the air bearing pressure decreases and[...]
Article : texte imprimé
Niels Heinrichson, Auteur ;
Ilmar Ferreira Santos, Auteur
|
A three-dimensional thermoelastohydrodynamic model is applied to the analysis of tilting-pad bearings with spherical pivots and equipped with deep recesses in the high-pressure regions. A potential for a 10–20% reduction in the friction loss com[...]
Article : texte imprimé
Hsiao-Ming Chu, Auteur ;
Wang-Long Li, Auteur ;
Yuh-Ping Chang, Auteur
|
In this paper, pure squeeze elastohydrodynamic lubrication motion of circular contacts with couple stress lubricant is explored at impact loading. On the basis of microcontinuum theory, the transient modified Reynolds equation is derived. Then i[...]
Article : texte imprimé
Nihar Raje, Auteur ;
Farshid Sadeghi, Auteur ;
Richard G. Rateick, Auteur
|
Fatigue lives of rolling element bearings exhibit a wide scatter due to the statistical nature of the mechanisms responsible for the bearing failure process. Life models that account for this dispersion are empirical in nature and do not provide[...]
Article : texte imprimé
Fatin F. Mahmoud, Auteur ;
Ahmed G. El-Shafei, Auteur ;
Amal E. Al-Shorbagy, Auteur
|
The tribological aspects of contact are greatly affected by the friction throughout the contact interface. Generally, contact of deformable bodies is a nonlinear problem. Introduction of the friction with its irreversible character makes the con[...]
Article : texte imprimé
M. Kalin, Auteur ;
F. Majdic, Auteur ;
J. Vižintin, Auteur
|
This work reports on the performance enhancement of a real-scale hydraulic system consisting of diamondlike-carbon (DLC)-coated components in combination with biodegradable oil in long-term experiments under conditions simulating those in an act[...]
Article : texte imprimé
A. Sepehri, Auteur ;
K. Farhang, Auteur
|
A hybrid interactive/optimization technique is used to derive in approximate closed-form equations relating contact load to mean plane separation. Equations governing Hertz contact for the interaction of surface asperities are considered in whic[...]
Article : texte imprimé
Xinjiang Shen, Auteur ;
David B. Bogy, Auteur
|
Particles in the head disk interface may cause large contact forces acting on the slider as well as thermal asperities in the read/write signal. This is especially true for the close spacing required for 1Tbit/in.2. In this paper, a three-body c[...]
Article : texte imprimé
A. Kadiric, Auteur ;
R. S. Sayles, Auteur ;
E. Ioannides, Auteur
|
A numerical model designed to simulate a moving line contact of two rough layered bodies is presented. Fourier transforms are used to obtain fundamental solutions to relevant differential equations and then these solutions are used as kernel fun[...]
Article : texte imprimé
M. S. Patil, Auteur ;
Jose Mathew, Auteur ;
P. K. Rajendrakumar, Auteur
|
Rolling element bearings find widespread domestic and industrial application. Defects in bearing unless detected in time may lead to malfunctioning of the machinery. Different methods are used for detection and diagnosis of the bearing defects. [...]
Article : texte imprimé
Xiaoling Liu, Auteur ;
Peiran Yang, Auteur
|
In order to investigate the influence of the body temperature of contacting solids on the lubrication performance of machine components, such as gears and roller bearings, a full numerical solution for the thermal elastohydrodynamic lubrication [...]
Exemplaires(0)
| Disponibilité | ||||
|---|---|---|---|---|
| aucun exemplaire | ||||
