Results 11 to 20 of about 14,675 (206)
Jet aircraft lubrication oil droplets as contrail ice-forming particles [PDF]
Atmospheric Chemistry and Physics, 2023 The radiative characteristics and lifetimes of contrails are dependent on the number concentration of ice-forming particles in the engine exhaust plume.
J. Ponsonby +3 more
doaj +6 more sources
Numerical Simulation of Oil Jet Lubrication for High Speed Gears [PDF]
International Journal of Aerospace Engineering, 2015 The Geared Turbofan technology is one of the most promising engine configurations to significantly reduce the specific fuel consumption. In this architecture, a power epicyclical gearbox is interposed between the fan and the low pressure spool. Thanks to
Tommaso Fondelli +4 more
doaj +2 more sources
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 +2 more sources
Numerical Calculation Analysis and Characteristic Research on Windage Loss of Oil-Jet Lubricated Aviation Gear Pair [PDF]
International Journal of Aerospace Engineering, 2022 The VOF (volume of fluid) multiphase transient simulation model of the windage loss of the gear pair under oil-jet lubrication was carried out by using the dynamic mesh technology with the powerful parallel computing capabilities of the Super Cloud ...
Linlin Li +5 more
doaj +2 more sources
LubricantsThe transient lubrication conditions of rolling bearings are different in gearboxes and bearing testers. It has been observed that samples of qualified rolling bearings tested in rolling bearing testers often fail and do not meet lifespan requirements ...
Shushen Gao +6 more
doaj +2 more sources
A New Experimental Methodology to Study Convective Heat Transfer in Oil Jet Lubricated Gear Units
Lubricants, 2023 The purpose of this study is to generate some experimental data associated with the thermal heat exchange between an oil jet flow and a rotating gear. To this end, a specific test bench was designed.
Thibaut Torres +3 more
doaj +3 more sources
Ouzo Column under Impact: Formation of Emulsion Jet and Oil-Lubricated Droplet [PDF]
Langmuir, 2021 We investigated the dynamics of a liquid column consisting of ouzo emulsion under the impact generated when the liquid container lands on a hard ground. At a cavitation number of 0.36, where cavitation is expected to occur, our high-speed videography captured the traveling jet and cavitation bubbles while the oil microdroplets in ouzo after different ...
Kyota Kamamoto +3 more
openaire +3 more sources
LubricantsThis study presents a theoretical and experimental analysis to quantify the power losses generated by an oil jet lubricated angular contact ball bearing.
Lionel Darul +3 more
doaj +3 more sources
Analysis of Influence Factor of Oil Jet Lubrication Impingement Depth of Aviation Spur Gear
Jixie chuandong, 2017 When the nozzle is decorated without offset and incline,gears with transmission ratios above 1 won’t be efficiently lubricated. In order to solve this problem,analytic method is adopted to establish mathematical model,basing on the geometric relationship
Wang Xin, Liu Shaojun, Hu Yun
doaj +1 more source
The Promise of Solid Lubricants for a Sustainable Future. [PDF]
Adv MaterLubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Grützmacher PG +7 more
europepmc +2 more sources