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On-line Access: 2024-04-16

Received: 2023-08-23

Revision Accepted: 2023-12-05

Crosschecked: 2024-04-16

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Clicked: 297

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Yi LIU

https://orcid.org/0009-0007-6962-5745

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

http://doi.org/10.1631/jzus.A2300436


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.

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author="Yi LIU, Kailin ZHANG, Shuai SHAO, Hongxu XIANG, Zhijian YE",
journal="Journal of Zhejiang University Science A",
volume="25",
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pages="324-339",
year="2024",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2300436"
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%T Influence of vibration on the lubrication effect of a splash-lubricated gearbox
%A Yi LIU
%A Kailin ZHANG
%A Shuai SHAO
%A Hongxu XIANG
%A Zhijian YE
%J Journal of Zhejiang University SCIENCE A
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%P 324-339
%@ 1673-565X
%D 2024
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2300436

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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
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SP - 324
EP - 339
%@ 1673-565X
Y1 - 2024
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A2300436


Abstract: 
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.

振动激励对飞溅润滑齿轮箱中润滑效果的影响

作者:刘逸,张开林,邵帅,向泓旭,叶志坚
机构:西南交通大学,轨道交通运载系统全国重点实验室,中国成都,610031
目的:以轨道交通车辆齿轮箱为研究对象,本文旨在研究轨道振动激励对飞溅润滑齿轮箱的润滑和效率的影响。
创新点:1.研究振动对齿轮箱内润滑与效率的影响;2.提出润滑评价指标,综合评估润滑情况;3.实测轨道激励。
方法:1.建立在动参考系中的齿轮箱高保真三维数值模型,并对不同振动方向下的齿轮箱进行计算流体力学仿真;2.讨论转速、浸油深度和不同喷油体积速率对润滑和效率的影响;3.提出一种对飞溅润滑齿轮箱内部润滑状况的评价方法,并量化地比较不同运行参数对润滑与效率的影响;4.通过实验验证该仿真方法的可行性。
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。

关键词:综合润滑评价;搅油损失;动参考系;飞溅润滑;振动激励

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