Optimization of groove texture profile to improve hydrodynamic lubrication performance: Theory and experiments

被引:89
作者
Wang, Wei [1 ,2 ]
He, Yongyong [1 ]
Zhao, Jun [1 ]
Mao, Junyuan [1 ]
Hu, Yutong [1 ]
Luo, Jianbin [1 ]
机构
[1] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
[2] China Software Testing Ctr, Intelligent & Connected Vehicle Testing Dept, Beijing 100048, Peoples R China
关键词
groove texture; hydrodynamic lubrication; laser texturing; ultra-low coefficient of friction; SURFACE TEXTURE; FRICTION; REDUCTION; STEEL; WEAR;
D O I
10.1007/s40544-018-0247-1
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
It is well known that groove texture with a careful design can be used to enhance the load-carrying capacity of oil film under the conditions of hydrodynamic lubrication. In this study, a general parametric model was developed, and agenetic algorithm-sequential quadratic programming hybrid method was adopted to obtain the global-optimum profile of the groove texture. The optimized profiles at different rotating speeds are all chevrons. The numerical analysis results verified the effect of the optimization. In addition to the numerical optimization, experiments were conducted to validate the superiority of the optimized results.The experimental results show that the optimized groove texture can efficiently reduce the coefficient of friction (COF) and the temperature rise of the specimen. In particular, the optimized groove textures can achieve stable ultra-low COF values (COF < 0.01) under certain conditions.
引用
收藏
页码:83 / 94
页数:12
相关论文
共 22 条
[1]  
Alt W, 1995, LECT NOTES ECON MATH, V429, P1
[2]   A laser surface textured parallel thrust bearing [J].
Brizmer, V ;
Kligerman, Y ;
Etsion, I .
TRIBOLOGY TRANSACTIONS, 2003, 46 (03) :397-403
[3]  
Elrod H.G., 1974, 1st Leeds-Lyon Symposium on Cavitation and Related Phenomena in Lubrication, V103, P37
[4]   State of the art in laser surface texturing [J].
Etsion, I .
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2005, 127 (01) :248-253
[5]   On the optimum groove shapes for load-carrying capacity enhancement in parallel flat surface bearings: Theory and experiment [J].
Fesanghary, M. ;
Khonsari, M. M. .
TRIBOLOGY INTERNATIONAL, 2013, 67 :254-262
[6]   On Self-Adaptive Surface Grooves [J].
Fesanghary, M. ;
Khonsari, M. M. .
TRIBOLOGY TRANSACTIONS, 2010, 53 (06) :871-880
[7]   A THEORY OF LUBRICATION BY MICRO-IRREGULARITIES [J].
HAMILTON, DB ;
WALOWIT, JA ;
ALLEN, CM .
JOURNAL OF BASIC ENGINEERING, 1966, 88 (01) :177-&
[8]  
Ren N., 2009, ADV MODELING MIXED L
[9]   Minimize friction of lubricated laser-microtextured-surfaces by tuning microholes depth [J].
Scaraggi, Michele ;
Mezzapesa, Francesco P. ;
Carbone, Giuseppe ;
Ancona, Antonio ;
Sorgente, Donato ;
Lugara, Pietro Mario .
TRIBOLOGY INTERNATIONAL, 2014, 75 :123-127
[10]   Texture Shape Optimization for Seal-Like Parallel Surfaces: Theory and Experiment [J].
Shen, Cong ;
Khonsari, M. M. .
TRIBOLOGY TRANSACTIONS, 2016, 59 (04) :698-706