Results 51 to 60 of about 5,656 (140)

Correlation between stick-slip frictional sliding and charge transfer

, 2010
A decade ago, Budakian and Putterman (Phys. Rev. Lett., {\bf 85}, 1000 (2000)) ascribed friction to the formation of bonds arising from contact charging when a gold tip of a surface force apparatus was dragged on polymethylmethacrylate surface.
A. S. Nowick, G. Ananthakrishna, G. Ananthakrishna, Jagadish Kumar, K. L. Johnson, P. R. Nayak, R. W. Hertzberg   +6 more
core   +1 more source

Defining Contact at the Atomic Scale

, 2010
Molecular dynamics simulations are used to study different definitions of contact at the atomic scale. The roles of temperature, adhesive interactions and atomic structure are studied for simple geometries.
Cheng, Shengfeng, Robbins, Mark O.
core   +1 more source

Lubrication background [PDF]

Surface topography, including the various physical methods of measuring surfaces, and the various lubrication regimes (hydrodynamic, elastohydrodynamic, boundary, and mixed) are discussed.
Dowson, D., Hamrock, B. J.
core   +1 more source

Biodiesel Performance within Internal Combustion Engine Fuel System: A Review [PDF]

, 2016
This review paper highlights the tribological performance of biodiesel at contacting surfaces in the fuel delivery system of compression ignition (diesel) engines.
Ghafoor, A., Gregory, O., Khan, Zulfiqar Ahmad, Saeed, Adil   +3 more
core   +1 more source

Modelling of amorphous polymer surfaces in computer simulation

, 1996
We study surface effects in amorphous polymer systems by means of computer simulation. In the framework of molecular dynamics, we present two different methods to prepare such surfaces.
Allen, Andreas Linke, Baschnagel, Bitsanis, Bogy, Brazhnik, Cooper, Dickman, Dickman, Dieter W. Heermann, Gerald Pätzold, Hamada, Hapke, Heermann, Hertanto, Hutchings, Kumar, Linke, Luedtke, Milchev, Paul, Paul, Phan, Rigby, Rouault, Spurr, Stolarski, Theodorou, Theodorou, Thorsten Hapke, Vacatello, Vacatello, Van Opheusden, Wang, Xia, Yethiraj, Yethiraj, Zimmer   +37 more
core   +2 more sources

Lubrication of space systems: Challenges and potential solutions [PDF]

Future space missions will all require advanced mechanical moving components which will require wear protection and lubrication. The tribology practices used today are primarily based upon a technology base that is more than 20 years old. This paper will
Fusaro, Robert L.
core   +1 more source

Adhesive contact of model randomly rough rubber surfaces

, 2019
We study experimentally and theoretically the equilibrium adhesive contact between a smooth glass lens and a rough rubber surface textured with spherical microasperities with controlled height and spatial distributions.
Acito, Vito, Chateauminois, Antoine, Ciavarella, Michele, Prevost, Alexis M   +3 more
core   +3 more sources

The dryout region in frictionally heated sliding contacts [PDF]

Some conditions under which boiling and two-phase flow can occur in or near a wet sliding contact are determined and illustrated. The experimental apparatus consisted of a tool pressed against an instrumented slider plate and motion picture sequences at ...
Arp, V., Braun, J., Giarratano, P. J., Hendricks, R. C.   +3 more
core   +1 more source

Finite Element Analysis of Temperature Field in Automotive Dry Friction Clutch [PDF]

, 2012
The friction clutch design is strongly dependent upon the frictional heat generated between contact surfaces during the slipping at beginning of engagement.
J. Schlattmann, O.I. Abdullah
core  

Investigation of instability, dynamic forces, and effect of dynamic loading on strength of cages for the bearings in the high pressure oxygen turbopumps for the space shuttle main engine [PDF]

Experiments were performed to determine the effect of cyclic loading on bearing cage strength. A long term working tensile load of approximately 1300 N (300 lbs) was found to be the likely maximum.
Dufrane, K. F., Kannel, J. W., Merriman, T. L., Rosenfield, A. R.   +3 more
core   +1 more source