A novel lubricating method of oil pump with self-adaptive adjustment function for transmission [PDF]
Scientific ReportsAt present, the lubrication of transmission in vehicles cannot be adjusted according to driving conditions, especially vehicles’ speed, resulting in low lubrication efficiency and high energy loss.
Yangfeng Cao +4 more
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A model formulation for the prediction of churning power loss in worm gear transmission [PDF]
Tribology and Materials, 2022 Churning power loss is a complex process that causes significant loss of energy under splash lubrication of gear units. A set of empirical equations are available that allows for precise churning power losses calculation for only the parallel axis gears.
Hardik Chothani, Kalpesh Maniya
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Aerospace, 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
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Performance of a New Aeronautic Oil-Guiding Splash Lubrication System
Lubricants, 2022 Among ever-increasing demands for low power consumption, low weight, and compact reducer systems, an oil-guiding splash lubrication method integrating the oil-guiding cylinder and pipes is suggested to be more suitable for light helicopters, instead of ...
Yu Dai +4 more
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Development of an analytical model to predict the churning power losses of an orthogonal face gear
Engineering Science and Technology, an International Journal, 2023 As one of the basic energy dissipations for one orthogonal face gear running partially submerged in an oil bath, there is no open literature concerned on the churning power losses of the face gear.
Xiang Zhu, Yu Dai
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Applied Sciences, 2020 In this study, we propose a computational fluid dynamics (CFD)-based method to study the lubrication and temperature characteristics of an intermediate gearbox with splash lubrication.
Fengxia Lu +4 more
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CFD Investigation into Flow Characteristics of a Special Splash Lubrication in Light Helicopters
Aerospace, 2022 Lubricating oil flow characteristics are the primary concern in the main reducer of light helicopters. To improve the lubricating performance of the main reducer, a special lubrication system is innovatively constructed by adding two oil-guiding tubes to
He Liu, Yu Dai, Jifu Jia, Xiang Zhu
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Research on Splash Lubrication Characteristics of a Spiral Bevel Gearbox Based on the MPS Method
Lubricants, 2023 In order to accurately and efficiently analyze the distribution law and motion status of lubricating oil in the spiral bevel gearbox of the electric multiple unit (EMU), a high-fidelity 3D CFD model of the spiral bevel gearbox of the EMU was established ...
Longjiang Shen +4 more
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Bouncing off the walls : the influence of gas-kinetic and van der Waals effects in drop impact [PDF]
, 2020 A model is developed for liquid drop impact on a solid surface that captures the thin film gas flow beneath the drop, even when the film’s thickness is below the mean free path in the gas so that gas kinetic effects (GKE) are important.
Belousov, Kirill I. +3 more
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Air Entrainment in Dynamic Wetting: Knudsen Effects and the Influence of Ambient Air Pressure [PDF]
, 2015 Recent experiments on coating flows and liquid drop impact both demonstrate that wetting failures caused by air entrainment can be suppressed by reducing the ambient gas pressure.
Sprittles, James E.
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