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- Title
FLOW CHARACTERISTICS OF OIL-GUIDING SPLASH LUBRICATION: SIMULATION AND EXPERIMENT STUDIES.
- Authors
Yin, M.; Xu, L. J.; Dai, Y.; Yang, D.; Zhu, X.
- Abstract
Based on the computational fluid dynamics (CFD) method, the performance of the oil-guiding cylinder, a key component in a novel splash lubrication system of the helicopter main reducer, was investigated in terms of three different kinds of structures. The pressure and velocity distribution characteristics were firstly simulated and analysed. The numerical simulations indicated that the oil free surface formed in the rotating cylinder was a paraboloid, meanwhile the structure without a bottom flange can achieve the splash effect constantly. Furthermore, the experimental findings agreed well with the numerical results, it was verified that the cylinder with a cylindrical-shaped lower wall surface gave a better lubrication performance than the conical-shaped. Besides, it was found that the oil volume increased with the rotating speed and oil level increasing, and the geometry parameters of the oil-guiding cylinder and the operating conditions have a great effect on the oil-guiding splash lubrication performance.
- Subjects
COMPUTATIONAL fluid dynamics; LUBRICATION &; lubricants; LUBRICATION systems; PARABOLOID
- Publication
International Journal of Simulation Modelling (IJSIMM), 2021, Vol 20, Issue 2, p363
- ISSN
1726-4529
- Publication type
Article
- DOI
10.2507/IJSIMM20-2-CO6