Results 61 to 70 of about 4,126,037 (146)
LubricantsThe accessory gearbox of an aero-engine operates under high-speed and heavy-load conditions, where insufficient lubrication may lead to oil-film failure, increased frictional losses, and reduced transmission reliability.
Jianfeng Li, Meng He, Fei Wang, Ziang Ge
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MATEC Web of Conferences, 2017 The air/oil two-phase flow is extremely complex in the aero-engine bearing chamber, so the comprehensive understanding of the flow phenomenon is helpful to improve the design of the lubrication and heat exchange system.
Fei Wang +3 more
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Test study on the influence of lubrication methods on the friction torque fluctuation of bearings
Jixie chuandongObjectiveTo obtain stable operating parameters of angular contact ball bearings under low friction torque conditions, the B7008 angular contact ball bearing was taken as the research object, and the effect laws of different lubrication methods on bearing
JIA Weitao, LI Qinghua, LI Pengfei
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Investigation of the High Speed Rolling Bearing Temperature Rise With Oil-Air Lubrication
, 2011 The oil-air lubrication system has been widely used for rolling ball bearing. However, as the rotation speed increases, the temperature rise will increase dramatically, resulting in shortening the service life of the ball bearing. The existing literature
Hebing Mao, Shuyun Jiang
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Simulation Study of the Effect of Oil Injection Speed on the Air Curtain of High-Speed Bearings
LubricantsIn order to improve the lubrication efficiency in the bearing cavity, this study establishes a simulation model of the fluid domain of the bearing cavity based on the computational fluid dynamics (CFD) method and systematically studies the flow ...
Yanfang Dong +6 more
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Experiment Study of Oil-Air Lubrication on Cooling of Turning Tools
, 2011 When lubricants are used according to special requirements, it is possible to achieve considerable cost savings. Compared to conventional coolant cooling technology used in metal cutting, oil-air lubrication increases cooling performance, avoids ...
Hong Tao Zheng, Lin Cai, Jin Li Wang
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Experiment and Numerical Study of Annular Flow Entrainment Mechanism in Oil-Air Lubrication Pipe
, 2011 Annular flow is a based flow pattern of two-phase in the pipe, and oil air flow in delivery pipe of Oil-Air lubrication (OAL) system is one of them.
Hong Tao Zheng, Lin Cai, Jin Li Wang
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Establishment and detection of a new S flow model in the pipe of oil–gas lubrication systems
AIP AdvancesDue to unique operational characteristics such as intermittent oil supply, trace lubricant supply, and small pipe diameters, oil–air lubrication systems exhibit distinct flow behaviors compared to conventional two-phase flow systems.
Xiaopeng Xie, Yijun Xiong
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Experimental and numerical investigation of air layer drag reduction on a flat plate
Alexandria Engineering JournalReduction of Ship fossil fuel oil burning emissions has a significant impact to contain the global warming. Saving power by reducing ship resistance could basically reduce fossil fuel emissions.
Salaheldin A. Mohamad +3 more
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Applied SciencesThe lubrication performance of high-speed transmission systems directly affects mechanical power consumption and operational reliability. During high-speed oil-stirring lubrication, strong gas–liquid interfacial shear, liquid-film deformation, droplet ...
Yunfeng Tan +4 more
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