Results 21 to 30 of about 5,635 (264)

Improvement of bearing support lubrication [PDF]

open access: yesVestnik MGTU, 2016
Gas turbine engine bearing supports is an important part in providing product efficiency of general and special-purpose engineering industry. Attempts are being made to increase efficiency of bearing support.
Shehovtseva E. V.
doaj   +1 more source

Determination of temperature mode of rotary bearings of gas turbine engine with air and fuel lubrication system [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2020
The article is devoted to the problem of choosing the optimal parameters of the air-fuel mixture in gas turbine engines (GTE) with the air-fuel lubrication system.
V. N. Klimov   +3 more
doaj   +1 more source

Analysis of Circulation Characteristics and Heat Balance of High-Speed Rolling Bearing under Oil-Air Lubrication

open access: yesLubricants, 2023
Aiming to solve the problem of oil-air lubrication failure caused by the high working temperature of high-speed rolling bearings, this study proposes a method, based on the theory of gas-solid two-phase flow and bearing tribology, of predicting the ...
Xiqiang Ma   +5 more
doaj   +1 more source

Modelling Tribochemical Reactions of Lubricants in the UHV Analytical Tribometer

open access: yesTribology Online, 2015
Gas Phase Lubrication (GPL) is used here to lubricate counterparts of a tribological system with a partial pressure of a gas. Because the rheological contribution (Hydrodynamic and EHL) of gas is practically negligible, the role of tribochemical ...
Maria Isabel De Barros-Bouchet   +5 more
doaj   +1 more source

Direct Monte Carlo simulation of nanoscale mixed gas bearings

open access: yesAdvances in Mechanical Engineering, 2015
The conception of sealed hard drives with helium gas mixture has been recently suggested over the current hard drives for achieving higher reliability and less position error.
Kyaw Sett Myo   +4 more
doaj   +1 more source

Simulation of Unsteady Flows of Oil/Gas in the Ventless Bearing Chamber of an Aero-Engine

open access: yesAerospace, 2022
The unsteady motion behavior of oil/gas two-phase flow in a novel ventless bearing chamber has significant impacts on the lubrication and heat transfer efficiency of bearings due to the various advantages of lower pressure levels and weaker rotating ...
Shaobai Li, Caixia Li, Wei Wang
doaj   +1 more source

Flow field and sealing performance analysis of compliant foil face gas seal

open access: yesAdvances in Mechanical Engineering, 2022
Based on the theory of gas lubrication and elastic mechanics, a theoretical model of gas-elastic coupling lubrication of compliant foil face gas seal (CFFGS) is presented. The correlation between the film pressure and thickness of CFFGS and its effect on
Yuan Chen   +5 more
doaj   +1 more source

Physico-mathematical modeling methods for the pressure distribution determination in the gas-dynamic bearing gap of the ball gyroscope

open access: yesMATEC Web of Conferences, 2017
The considering problem in the article connects with solution methods of the specific questions in gas-dynamic lubrication theory. The comparative analysis of analytical and numerical methods for the calculating gas-dynamic bearing characteristics is ...
Ignatovskaya Anastasiya, Golikov Alexey
doaj   +1 more source

Optimization Simulation Research of Lubrication Injection Parameters for Wide Tooth Cylindrical Gears

open access: yesJixie chuandong, 2022
The numerical simulation of injection lubrication of high-speed wide gears and the improvement of lubrication effect are studied. Based on experimentally verified simulation methods,the oil injection lubrication simulation analysis of the oil-gas two ...
Xiangyu Li   +3 more
doaj  

Numerical study on the load direction effect on the performance of tilting pad-journal gas bearing

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
This paper quantitatively presents the effect of load directions on the static performance of gas titling pad-journal bearing (TPJB). The gas film thickness is determined in a subsystem composed of the rotor and one pad.
Tianwei LAI   +4 more
doaj   +1 more source

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