Results 81 to 90 of about 14,675 (206)

Comparison of predicted and experimental thermal performance of angular-contact ball bearings [PDF]

Predicted bearing heat generation and bearing temperature were verified by experimental data for ball bearings over a range of sizes, shaft speeds, and lubricant flow rates.
Parker, R. J.
core   +1 more source

Spatiotemporal instability of a confined capillary jet

, 2008
Recent experimental studies on the instability appearance of capillary jets have revealed the capabilities of linear spatiotemporal instability analysis to predict the parametrical map where steady jetting or dripping takes place.
A. M. Gañán-Calvo, M. A. Herrada, P. Guillot, S. P. Lin   +3 more
core   +1 more source

A comparison of the different lubrication characteristics of cylindrical roller bearings between single bearing system and tester system

Advances in Mechanical Engineering
The lubrication performance of cylindrical roller bearings is directly linked to their operational accuracy and lifespan. Therefore, experimental testing is essential before deployment.
Chenfei Ma, Xiangying Hou, Kai Yang, Zhengminqing Li, Rupeng Zhu   +4 more
doaj   +1 more source

Study on the influence of gear pair operating parameters on heat transfer characteristics of lubrication systems and global sensitivity analysis

Case Studies in Thermal Engineering
Given the urgent demand for lightweight design and energy conservation in aviation engines, this study investigates the impact of gear pair operating parameters on the heat transfer characteristics of the lubrication system.
Yankun Hou, Yaguo Lyu, Jiaolei Tian, Zhengang Liu   +3 more
doaj   +1 more source

Performance of jet- and inner-ring-lubricated 35 millimeter bore ball bearings operating to 2.5 million DN [PDF]

Parametric tests were conducted with a 35 millimeter bore, angular contact ball bearing having a single outer land guided cage. Lubrication was achieved by flowing oil through axial grooves and radial holes machined in the inner ring of the bearing. Test
Schuller, F., T., Signer, H. R.
core   +1 more source

An experimental investigation of meniscus roll coating [PDF]

, 1998
A two-roll apparatus is used to explore experimentally the detailed fluid mechanics of meniscus roll coating in which inlets are starved and flow rates are small.
Gaskell, P.H., Innes, G.E., Savage, M.D.
core   +1 more source

Study on Temperature Field Distribution of a High-Speed Double-Helical Gear Pair with Oil Injection Lubrication

Lubricants
The temperature field distribution of high-speed double-helical gears under oil injection lubrication is investigated by obtaining heat flux density and convective heat transfer coefficients through theoretical calculations and CFD (computational fluid ...
Xiaozhou Hu, Yangmei Yuan, Jie Chen
doaj   +1 more source

Investigation into micromilling processes for micro thin walls made of Ti-6Al-4V material by customized polycrystalline diamond end mill [PDF]

Mechanical Sciences
Titanium alloy, as a material with high specific strength, is prone to severe tool wear during machining, leading to deterioration in the surface quality of the workpiece and presenting significant machining challenges.
Y. Li, X. Cheng
doaj   +1 more source

Lubrication of high-speed, large bore tapered-roller bearings [PDF]

The performance of 120.65-mm- (4.75-in.-) bore tapered-roller bearings was investigated at shaft speeds up to 15,000 rpm (18,000 DN). Temperature distribution and bearing heat generation were determined as a function of shaft speed, radial and thrust ...
Parker, R. J., Signer, H. R.
core   +1 more source

Supersonic transport lubrication system investigation Third semiannual report, 1 Nov. 1965 - 1 May 1966 [PDF]

Ball bearing and bellows face seals for supersonic aircraft gas turbine engine mainshafts tested with selected lubricants using oil-mist and jet lubrication ...
Rhoads, W. L., Sibley, L. B.
core   +1 more source