Results 1 to 10 of about 3,038 (139)
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.
Yu Dai, Xiang Zhu
exaly +3 more sources
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, Xiang Zhu
exaly +3 more sources
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
doaj +2 more sources
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
doaj +1 more source
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
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Droplet impact on a thin liquid film: anatomy of the splash [PDF]
, 2015 We investigate the dynamics of drop impact on a thin liquid film at short times in order to identify the mechanisms of splashing formation. Using numerical simulations and scaling analysis, we show that the splashing formation depends both on the ...
Josserand, Christophe +2 more
core +3 more sources
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
doaj +1 more source
Simulation and Experimental Study on Splash Lubrication Flow Field in Gearbox of EMU
Jixie chuandong, 2022 Splash lubrication is the most important lubrication method in gearbox of EMU at present，it is of great significance to study the law of flow field distribution for gear box lubrication.
Kaiwen Lu +5 more
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