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Received: 2023-08-23

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Journal of Zhejiang University SCIENCE A 2024 Vol.25 No.4 P.324-339


Influence of vibration on the lubrication effect of a splash-lubricated gearbox

Author(s):  Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE

Affiliation(s):  State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China

Corresponding email(s):   kailinzhang_swjtu@126.com, swjtushaoshuai@163.com

Key Words:  Comprehensive lubrication evaluation, Churning loss, Moving reference system, Splash lubrication, Vibrational excitation, Gearbox

Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE. Influence of vibration on the lubrication effect of a splash-lubricated gearbox[J]. Journal of Zhejiang University Science A, 2024, 25(4): 324-339.

@article{title="Influence of vibration on the lubrication effect of a splash-lubricated gearbox",
author="Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Influence of vibration on the lubrication effect of a splash-lubricated gearbox
%A Kailin ZHANG
%A Shuai SHAO
%A Hongxu XIANG
%A Zhijian YE
%J Journal of Zhejiang University SCIENCE A
%V 25
%N 4
%P 324-339
%@ 1673-565X
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2300436

T1 - Influence of vibration on the lubrication effect of a splash-lubricated gearbox
A1 - Yi LIU
A1 - Kailin ZHANG
A1 - Shuai SHAO
A1 - Hongxu XIANG
A1 - Zhijian YE
J0 - Journal of Zhejiang University Science A
VL - 25
IS - 4
SP - 324
EP - 339
%@ 1673-565X
Y1 - 2024
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2300436

In this study, we investigate the effect of rail vibrations on the lubrication and efficiency of a splash-lubricated gearbox; specifically, the gearbox of a rail-transit vehicle. A high-fidelity 3D numerical model of the gearbox in a moving reference system is described, as well as computational fluid dynamics (CFD) simulations of the gearbox with different vibration directions. The effects of rotational speed, oil-immersion depth, and different oil-injection volume rates on lubrication and efficiency are discussed. We propose a method of evaluating the internal lubrication condition of a splash-lubricated gearbox and quantitatively compare the effects of different operating parameters on lubrication and efficiency. Finally, our experiment to verify the feasibility of the simulation method is described. The results show that with vibration, the churning loss and oil supply for the bearings are significantly higher than those under static conditions. In addition, among different vibrational directions, lateral vibration has the greatest influence on the lubrication condition and efficiency of the gearbox. For the studied railway-vehicle gearbox, the best lubrication condition is achieved at a rotational speed of 1600 r/min and an oil-immersion depth of two times the tooth height (2.0h). Rotational speed is the operating parameter that has the most significant effect on the lubrication and efficiency of the gearbox.


结论:1.振动状态下,齿轮箱搅油损失和轴承供油量与静态下相比显著增大;2.在不同方向的振动中,横向振动载荷对齿轮箱润滑状况与效率的影响最大;3.对于所研究的轨道交通车辆齿轮箱,转速为1600 r/min、浸油深度为2倍齿高时润滑状态最佳;4.在各运行参数中,转速对齿轮箱的润滑与效率影响最为显著。


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


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