Results 1 to 10 of about 4,126,037 (146)
Research on the frictional contact behaviors of high-speed motorized spindle bearing with oil-air lubrication [PDF]
Scientific ReportsAs an important supporting element of rotating mechanisms, the frictional wear of rolling bearing causes low motion accuracy. To simulate the service statuses of rolling bearing under different lubrication conditions, the wear and frictional behavior ...
Weitao Jia +3 more
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Lubricants, 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
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Transient formation theory of air-microbubble oil and testing its oil-spraying mechanism
AIP Advances, 2023 In oil–air lubrication systems, large numbers of air microbubbles are often included in the oil phase. However, the principles of microbubble formation in oil–air annular flow and their influencing factors remain uncertain, and previous conclusions ...
Wenliang Zhang +2 more
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Visual Comparative Analysis for the Oil-air Two-Phase Flow of An Oil-Jet Lubricated Roller-Sliding Bearing [PDF]
Journal of Applied Fluid Mechanics, 2022 To discuss the lubrication characteristics of roller-sliding bearing under oil-injected lubrication, the CFD method was introduced into the fluid-structure interaction model to realize the transient simulation of oil-air two-phase flow (OATPF).
J. J. Zhang +4 more
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Aerospace, 2022 Oil mist lubrication can be utilized as an emergency lubrication system in the main reducer of a helicopter. A special-design pneumatic two-fluid nozzle is the crucial system component for atomizing lubricant oil, so exploring the atomization ...
He Liu, Huiyun Cheng, Yu Dai, Xiang Zhu
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Cryogenic Minimal Quantity Lubrication Assisted Cutting Process for Polyimide Materials
Shanghai Jiaotong Daxue xuebao, 2022 The cutting performance of the porous polyimide material assisted by cold air trace lubrication was investigated, and the influence law of cutting process parameters on the cutting effect (cutting force, surface finish quality, and oil content) of the ...
CAO Zheng, LEI Xuelin, ZHANG Hang, CAI Xiaojiang
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Numerical Investigation of Oil–Air Flow Inside Tapered Roller Bearings with Oil Bath Lubrication [PDF]
Journal of Applied Fluid Mechanics, 2023 Oil–air flow within an oil bath lubrication tapered roller bearing is essential for the lubrication and cooling of the bearing. In this paper, we develop a simulation model to investigate the flow field of tapered roller bearings with oil bath ...
Z. Wang +5 more
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Aerospace, 2023 To study the influence of orifice spacing on the oil–air two-phase flow and the oil capture efficiency of an oil scoop in an under-race lubrication system, an experimental platform for under-race lubrication was built, and a calculation model for the oil–
Le Jiang +5 more
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Advances in Mechanical Engineering, 2021 At present, the thermal analysis of oil-air-lubricated angular-contact ball bearings uses empirical heat transfer coefficients to calculate heat transfer.
Miaomiao Li +3 more
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A multiphase flow study for lubrication characteristics on the internal flow pattern of ball bearing
Results in Engineering, 2023 This work proposes a general method for establishing the lubrication analysis model of ball bearing and the oil-air multiphase flow characteristics inside ball bearing is revealed by CFD. Based on the geometric feature, the micro-clearance in the chamber
Wentao Shan +5 more
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