|Table of Contents|

[1] Nguyen Van Liem, , Zhang Jianrun, et al. Influence of micro asperity contact and radial clearanceon the tribological properties of crankpin bearings [J]. Journal of Southeast University (English Edition), 2021, 37 (3): 264-271. [doi:10.3969/j.issn.1003-7985.2021.03.005]
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Influence of micro asperity contact and radial clearanceon the tribological properties of crankpin bearings()
微观粗糙接触和径向游隙对曲柄销轴承摩擦性能的影响
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
37
Issue:
2021 3
Page:
264-271
Research Field:
Traffic and Transportation Engineering
Publishing date:
2021-09-20

Info

Title:
Influence of micro asperity contact and radial clearanceon the tribological properties of crankpin bearings
微观粗糙接触和径向游隙对曲柄销轴承摩擦性能的影响
Author(s):
Nguyen Van Liem1;  2;  3;  Zhang Jianrun1;  Huang Dacheng1
1School of Mechanical Engineering, Southeast University, Nanjing 211189, China
2School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi 435003, China
3Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, Huangshi 435003, China
阮文廉1;  2;  3;  张建润1;  黄大成1
1东南大学机械工程学院, 南京 211189; 2湖北理工学院机电工程学院, 黄石 435003; 3湖北理工学院智能输送技术与装备重点实验室, 黄石 435003
Keywords:
crankpin bearing;  tribological property;  slider-crank mechanism;  asperity contact
曲柄销轴承;  摩擦性能;  曲柄机制;  粗糙接触
PACS:
U461.3
DOI:
10.3969/j.issn.1003-7985.2021.03.005
Abstract:
A new hybrid numerical method that couples the dynamic slider-crank mechanism(SCM)and crankpin bearing(CB)lubrication models is proposed to analyze the effect of micro asperity contact on the tribological properties of a CB. In the hybrid model, the dynamic equations of the SCM are established based on the Newton method, while the lubrication equations of the CB are established on the basis of the Reynolds equation. Experimental data of the engine are also used in simulation analyses to enhance the reliability of the results. The load-bearing capacity(LBC)and friction force of the CB are selected as objective functions. Results show that the LBC has a negligible effect on the tribological properties of the CB, but the friction force greatly affects the resistance of the bearing under different radial clearances and surface roughness values. In particular, the maximum friction force in the asperity contact region accounts for 40.5% of the maximum total friction force at a radial clearance of 5 μm and 77.7% of the maximum total friction of the CB with a surface roughness of 10 μm.
将滑块-曲柄机构(SCM)的动力学模型和曲柄销轴承的润滑模型相结合, 开发了一种新的混合模拟方法, 以分析微观粗糙接触对曲柄销轴承润滑性能的影响.在混合模型中, SCM的动力学方程是基于牛顿法建立的, 而曲柄销轴承的润滑方程是根据雷诺方程建立的.为了提高结果的可靠性, 利用发动机的实验数据进行模拟分析, 并选择曲柄销轴承的承载能力和摩擦力作为目标函数.结果表明, 在不同的径向间隙和不同的粗糙表面下, 曲柄销轴承的承载能力对摩擦性能的影响可忽略不计, 而摩擦力极大地影响了曲柄销轴承的阻力.特别地, 粗糙接触区域的最大摩擦力在径向间隙为5 μm时占最大总摩擦力的40.5%, 在曲柄销轴承的粗糙表面10 μm处占最大总摩擦力的77.7%.

References:

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Memo

Memo:
Biographies: Nguyen Van Liem(1986—), male, doctor; Zhang Jianrun(corresponding author), male, doctor, professor, zhangjr@seu.edu.cn.
Foundation items: The National Key Research and Development Project(No. 2019YFB2006402), the Open Fund Project of Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University.
Citation: Nguyen Van Liem, Zhang Jianrun, Huang Dacheng.Influence of micro asperity contact and radial clearance on the tribological properties of crankpin bearings [J].Journal of Southeast University(English Edition), 2021, 37(3):264-271.DOI:10.3969/j.issn.1003-7985.2021.03.005.
Last Update: 2021-09-20