Results 1 to 10 of about 19,469 (232)

Minimum Quantity Lubrication Jet Noise: Passive Control [PDF]

open access: yesMicromachines, 2023
Jet noise is a common problem in minimum quantity lubrication (MQL) technology. This should be given great attention because of its serious impacts on the physical and mental health of the operators.
Xiaodong Hu   +5 more
doaj   +4 more sources

Jet aircraft lubrication oil droplets as contrail ice-forming particles [PDF]

open access: yesAtmospheric 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

Calculation method of impingement depth and multiple objective optimizations of nozzle layout for aviation gears considering windage [PDF]

open access: yesScientific Reports
As the rotating speed of aviation gears becomes higher and higher, the influence of windage resistance on jet streamline must be considered in lubrication system design.
Linlin Li   +3 more
doaj   +2 more sources

Identification of jet lubrication oil as a major component of aircraft exhaust nanoparticles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Jet engine aircraft are ubiquitous and significant sources of atmospheric nanoparticles. Using size-resolved particulate samples collected near a runway of the Narita International Airport, Japan, we clearly demonstrate that organic compounds in the ...
A. Fushimi   +4 more
doaj   +3 more sources

Numerical Simulation of Oil Jet Lubrication for High Speed Gears [PDF]

open access: yesInternational 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

CFD Investigation on Oil Injection Lubrication of Meshing Spur Gears via Lattice Boltzmann Method

open access: yesLubricants, 2022
The meshless Lattice Boltzmann Method (LBM) is introduced and employed to solve the complex two-phase flow problem of jet lubrication of meshing spur gears. Computational fluid dynamics (CFD) simulations based on LBM are carried out using the model of an
Xiaozhou Hu   +3 more
doaj   +1 more source

Influence of Nozzle Layouts on the Heat-Flow Coupled Characteristics for Oil-Jet Lubricated Spur Gears

open access: yesLubricants, 2023
Aiming to explore the influence of nozzle layouts on the lubrication and cooling performance of spur gears under oil jet lubrication conditions, this paper introduces a heat-flow coupled analysis method to predict the temperature field of the tooth ...
Duan Yang   +4 more
doaj   +1 more source

Machining response of Ti64 alloy under Nanofluid Minimum Quantity Lubrication (NFMQL) [PDF]

open access: yesE3S Web of Conferences, 2021
Rapid wear progression of cutting insert associated with attainment of excessive tool-tip temperature are indispensable causes which limit operational domain of cutting velocity during dry turning of Ti64 alloy.
Sahoo Sarthak Prasad, Datta Saurav
doaj   +1 more source

Numerical analysis on heat-flow-coupled temperature field for orthogonal face gears with oil–jet lubrication

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Lubrication and cooling performances of face gears with oil–jet lubrication are closely related to the nozzle layouts. To investigate the influence of the nozzle layouts on the lubrication performance of the face gears, a numerical analysis method based ...
Bin Ouyang   +3 more
doaj   +1 more source

Numerical and Experimental Investigation of Oil-Guiding Splash Lubrication in Light Helicopter’s Reducers

open access: yesAerospace, 2021
Limited by the space and weight of the reducer, it is difficult to use traditional oil-jet lubrication and splash lubrication for a light helicopter, so an oil-guiding splash lubrication method is adopted as a research object in this paper.
Mei Yin   +5 more
doaj   +1 more source

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