|Table of Contents|

[1] Nguyen Van Liem, Zhang Jianrun, Jiao Renqiang, et al. Method of ameliorating the lubrication and friction performanceof an engine based on different microtextures [J]. Journal of Southeast University (English Edition), 2021, 37 (4): 365-371. [doi:10.3969/j.issn.1003-7985.2021.04.004]
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Method of ameliorating the lubrication and friction performanceof an engine based on different microtextures()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
37
Issue:
2021 4
Page:
365-371
Research Field:
Traffic and Transportation Engineering
Publishing date:
2021-12-20

Info

Title:
Method of ameliorating the lubrication and friction performanceof an engine based on different microtextures
Author(s):
Nguyen Van Liem1;  2;  Zhang Jianrun2;  Jiao Renqiang1
1Hubei Key Laboratory of Intelligent Conveying Technology and Device, Hubei Polytechnic University, Huangshi 435003, China
2School of Mechanical Engineering, Southeast University, Nanjing 211189, China
Keywords:
crankpin bearing;  microtextures;  lubrication and friction performance(LFP);  texture
PACS:
U461.3
DOI:
10.3969/j.issn.1003-7985.2021.04.004
Abstract:
A design of different microtextures on the surface of the crankpin bearing(CB)is proposed to ameliorate the lubrication and friction performance(LFP)of engines. On the basis of the CB’s hydrodynamic lubrication model, the bearing surface of CB using different microtextures, such as wedge-shaped textures(WSTs), square textures(STs), circular textures(CTs), and combined square-circular textures(CSCTs), is simulated and assessed under various external loads of the CB at an engine speed of 2 000 r/min. The pressure of the oil film, the frictional force, the force of the solid asperity contact, and the friction coefficient of the CB are used as objective functions. Results indicate that the bearing surface designed by the STs remarkably improves the CB’s LFP in comparison with other structures of WSTs, CTs, and CSCTs. Particularly, the average values of the frictional force, solid asperity contact, and friction coefficient of the CB using the STs are greatly reduced by 28.5%, 14.5%, and 33.2% and by 34.4%, 26.3%, and 43.6% in comparison with the optimized CB dimensions and CTs, respectively. Therefore, the application of the STs on the CB surfaces can enhance the LFP of engines.

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 Program of China(No.2019YFB2006402), the Open Fund Project of Hubei Key Laboratory of Intelligent Transportation Technology and Device, Hubei Polytechnic University(No.2021XZ107), the Key Scientific Research Project of Hubei Polytechnic University(No.21xjz02A).
Citation: Nguyen Van Liem, Zhang Jianrun, Jiao Renqiang. Method of ameliorating the lubrication and friction performance of an engine based on different microtextures[J].Journal of Southeast University(English Edition), 2021, 37(4):365-371.DOI:10.3969/j.issn.1003-7985.2021.04.004.
Last Update: 2021-12-20