Flow field distribution of splash lubrication of gearbox and churning gear torque loss

被引：2
|
作者：
Liu H.-L. [1 ,2 ]
Xie C.-X. [1 ,2 ]
Li D.-F. [1 ,2 ]
Wang J.-W. [1 ,2 ]
机构：
[1] Engineering Research Center of Advanced Driving Energy-saving Technology, Ministry of Education, Chengdu
[2] School of Mechanical Engineering, Southwest Jiaotong University, Chengdu
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2021年 / 55卷 / 05期
关键词：
Computational fluid dynamics (CFD); Flow field distribution; Moving particle semi-implicit method (MPS); Splash lubrication; Torque loss;
D O I：
10.3785/j.issn.1008-973X.2021.05.008
中图分类号：
学科分类号：
摘要：
Gearbox splash lubrication has the characteristics of gear rotation, two-phase flow and complex flow field distribution, which is difficult to study through theory or experiment. In terms of computational fluid dynamics, the traditional grid method has the disadvantages of difficulty in processing dynamic grids and high computational cost. In view of the above problems, the moving particle semi-implicit method (MPS) was used to carry out the simulation analysis of the gearbox splash lubrication. At low speeds, different lubricating oil models and temperature conditions were set, and it was found that the lubricating oil flow field distribution was in good agreement with the test results. At high speeds, different oil temperature conditions were set, and it was found that compared with the smooth particle hydrodynamics method (SPH), the accuracy of the gear churning torque loss obtained by the MPS method was higher. It can accurately predict the trend of torque loss, but the error of torque loss prediction is relatively large, and further improvement and perfection are needed. The MPS method strictly guarantees the incompressibility of the fluid. It is easy to track and capture the free surface with large deformation and strong non-linearity The MPS method can be used to analyze and predict the distribution of splash lubrication flow field of the gearbox well. Copyright ©2021 Journal of Zhejiang University (Engineering Science). All rights reserved.
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页码：875 / 886
页数：11
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