Results 61 to 70 of about 113,445 (204)

Lubrication model of a knee prosthesis, with non newtonian fluid and porous rough material [PDF]

, 2009
Tibial component of knee prostheses, made of ultra high molecular weight polyethylene (UHMWPE), experiences a high degree of wear and may be expected to last twelve years on average.
Berli, Marcelo Eduardo, Campana, Diego Martin, Di Paolo, José, Ubal, Sebastian   +3 more
core  

Lubrication approximation for micro-particles moving along parallel walls

, 2008
Lubrication expressions for the friction coefficients of a spherical particle moving in a fluid between and along two parallel solid walls are explicitly evaluated in the low-Reynolds-number regime.
Eligiusz Wajnryb, François Feuillebois, Happel J., Jerzy Bławzdziewicz, Kim S., Maria L. Ekiel-Jeżewska   +5 more
core   +1 more source

Investigating the Effect of Water Contamination on Gearbox Lubrication based on Motor Control Data from a Sensorless Drive [PDF]

, 2014
Water is one of the most significant destructive contaminations to lubricants which in turn lead to more power consumption and early damage to rotating machines.
Abusaad, Samieh, Ball, Andrew, Benghozzi, Ahmed, Brethee, Khaldoon F., Gu, Fengshou   +4 more
core  

Stryker Osteonics: Prosthetic Knee Joint [PDF]

, 2008
We examine, within a simple bearing model of a knee joint that only consideres pure sliding, the effect of the presence of a small vertical hole in the load area on the fluid film properties.
Hjorth, P.G., King, J., Korobeinikov, A., Mason, J., McKee, S., Wilson, S.   +5 more
core  

A Sensorless Condition Identification Algorithm for Mechanical and Electric Pumps in Gearboxes

Kongzhi Yu Xinxi Jishu
Gearboxes are a crucial component of the drive chain within wind turbine generators, and their reliable operation is guaranteed by a lubrication system.
QIN Long, CHEN Yanan, ZHANG Jiayou, CHEN Huai, SHU Hui   +4 more
doaj  

A novel design of journal bearings for stability under shock loads

Scientific Reports
Mechanical systems are expected to operate under various load conditions, and it is necessary to use a lubrication system to achieve reliability and stable performance.
Sung-Ho Hong
doaj   +1 more source

Gas lubricant compositions Patent [PDF]

, 1963
High temperature gas lubricant consisting of two fluoro-bromo ...
Buckley, D. H., Johnson, R. L.
core   +1 more source

NASA helicopter transmission system technology program [PDF]

, 1983
The purpose of the NASA Helicopter Transmission System Technology Program is to improve specific mechanical components and the technology for combining these into advanced drive systems to make helicopters more viable and cost competitive for commerical ...
Zaretsky, E. V.
core   +1 more source

Boundary lubrication properties of materials with expansive freezing

, 2002
We have performed molecular dynamics simulations of solid-solid contacts lubricated by a model fluid displaying many of the properties of water, particularly its expansive freezing.
A. M. Homola, A. Scala, B. Brushan, B. N. J. Persson, C. A. Angell, E. A. Jagla, E. A. Jagla, E. A. Jagla, E. A. Jagla, E. A. Jagla, F. X. Prielmeier, G. Franzese, I. K. Snook, J. Gao, J. Gao, J. Gao, J. Klein, J. N. Israelachvili, M. Heuberger, M. L. Gee, O. Mishima, P. A. Thompson, S. E. Grillo, S. K. Das, U. Raviv, Y. Wang   +25 more
core   +1 more source

Numerical Simulation of Startup Performance in High-Power Diesel Engine Lubrication Systems Under High-Altitude and Cold Conditions

Lubricants
With the significant increase in the number of motor vehicles in plateau regions, the adaptability and reliability requirements of diesel engines operating under high-altitude and cold conditions have become increasingly critical.
Zhonghao Gao, Yiqiao Guo, Wendi Zhu, Wei Du, Lanjie Huang, Hao Zhang   +5 more
doaj   +1 more source