Results 31 to 40 of about 595,906 (266)
Stagnation–saddle points and flow patterns in Stokes flow between contra-rotating cylinders [PDF]
, 1998 The steady flow is considered of a Newtonian fluid, of viscosity mu, between contra-rotating cylinders with peripheral speeds U-1 and U-2 The two-dimensional velocity field is determined correct to O(H-0/2R)(1/2), where 2H(0) is the minimum separation of
Gaskell, P.H. +2 more
core +1 more source
Numerical Simulation and Optimization of Oil Jet Lubrication for Rotorcraft Meshing Gears
International Journal of Simulation Modelling, 2018 Oil jet lubrication performance directly influences the operation, reliability and fatigue life of meshing gears working under high-speed and heavy-load conditions in the main reducer of rotorcraft.
Y. Dai, W. Wu, H. Zhou, J. Zhang, F. Ma
semanticscholar +1 more source
Lubricants, 2023 Oil lubrication is widely adopted in rolling bearings, the characteristics of which affect the oil film formation and friction state, and also the heat generation and dissipation characteristics.
Baogang Wen +3 more
doaj +1 more source
Study of Lubricant Jet Flow Phenomena in Spur Gears [PDF]
Journal of Lubrication Technology, 1975 Lubricant jet flow impingement and penetration depth into a gear tooth space were measured at 4920 and 2560 using a 8.89-cm- (3.5-in.) pitch dia 8 pitch spur gear at oil pressures from 7 × 104 to 41 × 104 N/m2 (10 psi to 60 psi). A high speed motion picture camera was used with xenon and high speed stroboscopic lights to slow down and stop the motion ...
L. S. Akin, J. J. Mross, D. P. Townsend
openaire +1 more source
LubricantsTapered roller bearings are extensively utilized in the aerospace industry owing to their superior load-carrying capacity and extended service life. However, the majority of research conducted by scholars on the subject of bearing lubrication has focused
Yu Dai +5 more
doaj +1 more source
International Journal of Mining Science and Technology, 2022 CO2 drilling is a promising underbalance drilling technology with great advantages, such as lower cutting force, intense cooling and excellent lubrication.
Can Cai +4 more
doaj +1 more source
MachinesThe involute gear with variable tooth thickness lacks established methods for calculating meshing heat and studying oil-jet lubrication and cooling effects.
Huicheng Zhang, Yongping Liu, Junhai Guo
doaj +1 more source
Capillary pinching in a pinched microchannel [PDF]
, 2007 We report a study of the capillary pinching of a gas bubble by a wetting liquid inside a pinched channel. The capillary pinching induces very reproducible bubbling, at a very well-defined frequency.
Amyot, Olivier, Plouraboué, Franck
core +2 more sources
Jet Engines and Their Lubrication
Journal of the Fuel Society of Japan, 1953 ジエット・エンジンの動作機構を説明し, 各回転部の荷重を考察してこれに要する潤滑方法について述べた。潤滑油の性状も往復エンジンとちがつた特色を持つ必要がある。-60°～260℃の広範囲にわたつて安定な性質を持つ粘度指数の高い油が要求されるわけで, 、米軍規格を主として実用潤滑油の規格を説明した。つぎに米国におけるジエット・エンジン用潤滑油の研究製造について, 硅素樹脂潤滑剤, 石油系潤滑油, 合成潤滑油, グリース, 添加剤などの現状特質について述べている。
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source