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On-line Access: 2023-01-11

Received: 2022-05-24

Revision Accepted: 2022-09-14

Crosschecked: 2023-01-13

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Citations:  Bibtex RefMan EndNote GB/T7714


Shuai SHAO


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Journal of Zhejiang University SCIENCE A 2022 Vol.23 No.12 P.1013-1026


Investigations on lubrication characteristics of high-speed electric multiple unit gearbox by oil volume adjusting device

Author(s):  Shuai SHAO, Kai-lin ZHANG, Yuan YAO, Yi LIU, Jun GU

Affiliation(s):  State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China; more

Corresponding email(s):   zhangkailin@swjtu.cn

Key Words:  High-speed electric multiple unit (EMU), Splash lubrication, Mesh-free moving particle semi-implicit (MPS) method, Bearing lubrication, Churning power loss, Oil volume adjusting device

Shuai SHAO, Kai-lin ZHANG, Yuan YAO, Yi LIU, Jun GU. Investigations on lubrication characteristics of high-speed electric multiple unit gearbox by oil volume adjusting device[J]. Journal of Zhejiang University Science A, 2022, 23(12): 1013-1026.

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author="Shuai SHAO, Kai-lin ZHANG, Yuan YAO, Yi LIU, Jun GU",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Investigations on lubrication characteristics of high-speed electric multiple unit gearbox by oil volume adjusting device
%A Shuai SHAO
%A Kai-lin ZHANG
%A Yuan YAO
%A Jun GU
%J Journal of Zhejiang University SCIENCE A
%V 23
%N 12
%P 1013-1026
%@ 1673-565X
%D 2022
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2200274

T1 - Investigations on lubrication characteristics of high-speed electric multiple unit gearbox by oil volume adjusting device
A1 - Shuai SHAO
A1 - Kai-lin ZHANG
A1 - Yuan YAO
A1 - Yi LIU
A1 - Jun GU
J0 - Journal of Zhejiang University Science A
VL - 23
IS - 12
SP - 1013
EP - 1026
%@ 1673-565X
Y1 - 2022
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2200274

In this paper, a numerical simulation model of the flow field in a gearbox with an oil volume adjusting device is established for the first time to study its influence on the lubrication characteristics of a high-speed electric multiple unit (EMU) gearbox. The moving particle semi-implicit (MPS) method is used to numerically simulate the internal flow field of the gearbox of the high-speed EMU under working conditions. The effects of the velocity of the high-speed EMU, the immersion depth, and the oil sump temperature on the power loss of the gears and the lubricant quantity of each bearing are studied and provide an effective tool for the quantitative evaluation of the lubrication characteristics of the gearbox. The lubrication characteristics of the gearbox under different working conditions are studied when the oil volume adjusting device is closed and opened. The results show that the oil volume adjusting device mainly changes the amount of lubricant stirred by the output gear by changing the flow rate of lubricant from the cavity pinion (Cavity P) to the cavity gear (Cavity G), and thus affects the power loss of gears and the lubricant quantity of each bearing.


结论:1. MPS方法非常适用于分析复杂结构的齿轮箱的润滑特性;2.齿轮功率损失和各轴承润滑油油量与齿轮转速、浸油深度和润滑油油温呈正相关;3.油量调节装置主要通过减少输出齿轮搅拌的润滑油油量来减少齿轮的功率损失和参与轴承润滑的润滑油油量。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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