Numerical and Experimental Investigation of Oil-Guiding Splash Lubrication in Light Helicopter’s Reducers

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. Firstly, the lubrication performance of the oil-guiding cyl...

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Bibliographic Details
Published in:Aerospace 2021-11, Vol.8 (11), p.345
Main Authors: Yin, Mei, Chen, Xi, Dai, Yu, Yang, Duan, Xu, Lanjin, Zhu, Xiang
Format: Article
Language:English
Subjects:
Attitudes
Bearings
Computational fluid dynamics
Energy dissipation
Experiments
Finite volume method
Fluid dynamics
Helicopters
Hydrodynamics
Light helicopters
Lubricants & lubrication
Lubricating oils
Lubrication
numerical simulation
oil-guiding cylinder
Power
Rotating cylinders
Rotation
splash lubrication
Trends
Turbulence models
Viscosity
Weight reduction
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Summary: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. Firstly, the lubrication performance of the oil-guiding cylinder in the main reducer under different rotating speeds, oil levels, and flight attitudes is investigated based on the computational fluid dynamics (CFD) method. Then, a specific test rig is developed, and lubrication tests are carried out to verify the feasibility and correctness of the simulation. These results show that oil level, rotating speed, and flight attitude have a great influence on splash lubrication performance.
ISSN:2226-4310
2226-4310
DOI:10.3390/aerospace8110345