Results 191 to 200 of about 14,758 (215)
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Influence of spin flow on lubricating oil jet—Design method of oil spray parameters to high speed spur gears

Tribology International, 2015
Abstract As the gear speed becomes higher and higher in modern industry the influence of spin flow on lubricating oil jet must be taken into account in design of gearings. A multiphase flow model is established in computational fluid dynamics (CFD) to calculate the regimes of oil jet in spin flow.
Yanzhong Wang   +3 more
exaly   +2 more sources

A simulation analysis for lubricating characteristics of an oil-jet lubricated ball bearing

Simulation Modelling Practice and Theory, 2021
Abstract Lubricating characteristics of support bearings in gearboxes would greatly affect operational performances of gear transmission systems. To discuss the lubricating characteristics of oil-jet lubricated ball bearing in the gearbox, a fluid-structure coupled simulation model based on the CFD method is established.
Jing Liu 0046   +3 more
openaire   +1 more source

Temperature measurement and error analysis of the transverse plane of oil-jet-lubrication herringbone gear with infrared pyrometers

Review of Scientific Instruments, 2023
Frictional power losses of high-speed and heavy-load herringbone gearboxes increase the temperature of the gearbox. Thus, real-time surface temperature measurement is significant for evaluating the gearbox lubrication design. A rotating gear test rig with an infrared pyrometer is developed in this paper to conduct real-time and accurate temperature ...
Lin Wang   +4 more
openaire   +2 more sources

Optimized design of spray parameters of oil jet lubricated spur gears

Tribology International, 2018
Abstract The lubrication process in jet lubrication is significantly influenced by different spray parameters under different injection conditions. The computational fluid dynamics model of the jet lubrication process is established. The jet lubrication process is evaluated with different spray parameters, including the spray angle, position, and ...
Yanzhong Wang   +3 more
openaire   +1 more source

Convection heat transfer and temperature analysis of oil jet lubricated spur gears

Industrial Lubrication and Tribology, 2016
Purpose This paper aims to provide an analytic technique for determining the convection heat transfer and temperature of oil jet lubricated spur gears. Design/methodology/approach A multiphase flow model is developed to calculate the convection heat transfer coefficients on different gear faces during different contact conditions.
Yanzhong Wang   +4 more
openaire   +1 more source

Two-Way Coupled CFD Approach for Predicting Gear Temperature of Oil Jet Lubricated Transmissions

SAE International Journal of Commercial Vehicles, 2018
<div>This article focuses on the development of a two-way coupled methodology to predict gear temperature of oil jet lubricated transmissions using commercial software for computational fluid dynamics simulation.
Shrikrishna Deshpande   +4 more
openaire   +1 more source

Experimental Investigation on Power Losses due to Oil Jet Lubrication in High Speed Gearing Systems

Volume 5B: Heat Transfer, 2017
In order to reduce environmental and climate impact from air traffic, the main effort of aero-engine industry and research community is looking at a continuous increase in gearbox efficiency. With this kind of components every source of loss can be responsible for high heat loads; for this reason oil jet systems are used to provide proper cooling and ...
Massini, D.   +4 more
openaire   +2 more sources

Mathematical modeling and numerical simulation for determining an optimized oil jet layout for spiral bevel gear lubrication

Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2020
In aeroengine industry, the oil jet layout significantly influences lubrication of high-speed and heavy-load transmission gears, as there is only extremely limited meshing clearance for the oil stream jetting into and an inevitable blocking effect of rotating gears.
X Zhu, Y Dai, F Ma, B Ouyang
openaire   +1 more source

Influence of temperature on dynamic contact characteristics of oil-jet lubricated rolling bearings

Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics
The temperature variation alters the contact state of each component during the operating process of oil-jet lubricated rolling bearings, which directly affects the dynamic performance of the bearing. However, previous studies on the dynamics of oil-jet lubricated rolling bearings do not comprehensively consider the influence of temperature factors ...
Wenbing Tu   +4 more
openaire   +1 more source

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