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 conventional splash or oil jet lubrication.
Yu Dai, Xiang Zhu, Duan Yang
exaly +4 more sources
CFD Investigation into Flow Characteristics of a Special Splash Lubrication in Light Helicopters [PDF]
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 the hub of the output gear, and the influence of the oil-guiding tubes is investigated through CFD (
He Liu, Yu Dai, Jifu Jia, Xiang Zhu
doaj +6 more sources
CFD-Based Investigation of Lubrication and Temperature Characteristics of an Intermediate Gearbox with Splash Lubrication [PDF]
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. A volume of fluid (VOF) multiphase model was used to track the interface between oil and air.
Lu, Fengxia +4 more
openaire +3 more sources
A novel lubricating method of oil pump with self-adaptive adjustment function for transmission. [PDF]
Sci RepAt 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.
Cao Y, Liu D, Zhang P, Zhou H, Zhao S.
europepmc +2 more sources
Influence of the Dynamic Motion of a Splash-Lubricated Gearbox on Churning Power Losses [PDF]
Energies, 2019 To investigate the influence of the dynamic motion of a gearbox on lubricating flow field and churning power losses under splash lubrication, a computational fluid dynamics (CFD) method based on a combination of the fluid of volume (VOF) method and turbulence model is presented in this paper.
Hu, Xiaozhou, Li, Pingping, Wu, Minggui
openaire +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 for the first time.
Shen, Longjiang +4 more
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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. A simulation test platform for splashing lubrication flow field of gearbox is established after simplifying the gearbox of EMU，and splash lubrication capture test is ...
Kaiwen Lu +5 more
openaire +2 more sources
Research on Splash Lubrication Characteristics of the Planetary Gear Train Based on the MPS Method
Jixie chuandong, 2023 In order to analyze the lubrication characteristics of the planetary gear transmission of shield main drive reducers, a simulation model of splash lubrication of the single-stage planetary gear train is established using the moving particle semi-implicit (MPS) method.
Shi Lubing +7 more
openaire +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
Investigations on Oil Flow Rates Projected on the Casing Walls by Splashed Lubricated Gears [PDF]
Advances in Tribology, 2012 In order to investigate the oil projected by gears rotating in an oil bath, a test rig has been set up in which the quantity of lubricant splashed at several locations on the casing walls can be measured. An oblong-shaped window of variable size is connected to a tank for flow measurements, and the system can be placed at several locations. A series of
Leprince, Gauthier +3 more
openaire +1 more source