滑滚比对油膜界面滑移及弹流润滑特性的影响

赵二辉; 郭闯; 汪成文; 邵波; 乔妙杰; 权龙

doi:10.13224/j.cnki.jasp.20240114

滑滚比对油膜界面滑移及弹流润滑特性的影响

doi: 10.13224/j.cnki.jasp.20240114

赵二辉^{1, 2,},
郭闯¹,
汪成文¹,
邵波^2,*, ,,
乔妙杰²,
权龙¹

1.
太原理工大学机械与运载工程学院，太原 030024
2.
山西中电科技特种装备有限公司，太原 030032

基金项目: 国家自然科学基金（52005359）

详细信息

作者简介:
赵二辉（1985-），男，讲师，博士，主要从事机械传动与摩擦学等方面的研究。E-mail：zhaoerhui@tyut.edu.cn

通讯作者:
邵波（1988-），男，工程师，硕士，主要研究方向为机械与车辆动力学。E-mail：shawboo@163.com

中图分类号: V233.4
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出版历程
- 收稿日期: 2024-02-29
- 网络出版日期: 2024-09-29

Effect of slip-roll ratio on oil film interface slip and elastohydrodynamic lubrication characteristics

ZHAO Erhui^{1, 2
,},
GUO Chuang¹,
WANG Chengwen¹,
SHAO Bo^{2,*
, ,},
QIAO Miaojie²,
QUAN Long¹

1.
College of Mechanical and Vehicle Engineering，Taiyuan University of Technology，Taiyuan 030024，China
2.
Shanxi Special Equipment Company Limited of CETC，Taiyuan 030032，China

摘要

摘要:
为了探究严苛工况下机械传动系统中摩擦副润滑失效的形成和演变机理，建立考虑油膜界面滑移的点接触弹流润滑模型进行数值仿真计算，并与双色光干涉弹流润滑试验相对照。研究滑滚比对弹流润滑中油膜界面滑移的影响，进而研究界面滑移状态下卷吸速度、流体动压、油膜厚度、滑移参数等随滑滚比的变化特性。结果表明：随着滑滚比的增加，界面滑移幅度和滑移范围显著增加。滑滚比为5的高滑滚比工况下，最大滑移长度达1.06 μm，滑移范围占比达21.56%；滑移区域的卷吸速度明显下降；整个接触区域内的动压分布趋向均匀；入口凹陷深度逐渐增大，同时出口区膜厚下降的幅度也逐渐增大；滑移范围内的平均滑移长度与滑滚比近似呈线性关系，滑滚比为5时滑移范围内的平均滑移长度达0.250 μm；滑移部位的承载力逐渐减小，滑滚比为5时下降幅度达6.4%。
- 界面滑移 /
- 点接触 /
- 弹流润滑 /
- 滑移长度 /
- 滑滚比
Abstract:
In order to explore the formation and evolution mechanism of lubrication failure of friction pair in mechanical transmission system under severe working conditions, a point contact elastohydrodynamic lubrication model considering oil film interface slip was established for numerical simulation calculation, and also compared with the two-color light interference elastohydrodynamic lubrication experiment. The influence of slip-roll ratio on oil film interface slip in elastohydrodynamic lubrication was studied, and then the variation characteristics of entrainment velocity, hydrodynamic pressure, oil film thickness and slip parameters with slip-roll ratio under interface slip state were studied. The results showed that with the increase of slip-roll ratio, the slip amplitude and slip range of the interface increased significantly. Under the condition of high slip-roll ratio with slip-roll ratio being 5, the maximum slip length reached 1.06 μm, and the slip range accounted for 21.56%. The entrainment velocity in the slip region decreased obviously. The dynamic pressure distribution in the whole contact area tended to be uniform. The depth of the inlet depression increased gradually, and the decrease of the film thickness in the outlet area was also augmented gradually. The average slip length in the slip range was approximately linear with the slip-roll ratio. When slip-roll ratio was 5, the average slip length in the slip range was 0.250 μm. The bearing capacity of the slip part decreased gradually, and the decrease was 6.4% when slip-roll ratio was 5.
- interface slip /
- point contact /
- elastohydrodynamic lubrication /
- slip length /
- slide-roll ratio

HTML

图 1 模型计算流程图

Figure 1. Model calculation flow chart

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图 2 中心线上卷吸速度分布

Figure 2. Entrainment velocity distribution on the center line

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图 3 中心线上动压分布

Figure 3. Dynamic pressure distribution on the center line

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图 4 中心线上油膜厚度分布

Figure 4. Oil film thickness distribution on the center line

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图 5 滑移长度分布

Figure 5. Slip length distribution diagram

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图 6 滑移参数受滑滚比影响分析

Figure 6. Analysis of slip parameters affected by slip-roll ratio

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图 7 双色光干涉点接触弹流润滑试验原理图

Figure 7. Principle diagram of two-color light interference point contact elastohydrodynamic lubrication experiment

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图 8 试验与仿真膜厚干涉对照图

Figure 8. Comparison diagram of experimental and simulated film thickness interference

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图 9 试验与仿真中心线膜厚分布

Figure 9. Experimental and simulation centerline film thickness distribution

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表 1 材料参数

Table 1. Material parameters

参数	数值
球半径R/mm	12.7
球弹性模量E₁/10¹¹ Pa	2.02
盘弹性模量 E₂/10¹¹ Pa	0.764
球泊松比	0.3
盘泊松比	0.2
润滑油初始黏度η₀/（Pa∙s）	117
润滑油初始密度ρ₀/（kg/m³）	875

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表 2 工况条件

Table 2. Work condition

参数	数值
载荷 w/N	30
卷吸速度u_e/（mm/s）	2.5
滑滚比γ_sr	0，1，2，3，4，5
球表面速度 u_h/（mm/s）	2.5，3.75，5，6.25，7.5，8.75
盘表面速度 u₀/（mm/s）	2.5，1.25，0，−1.25， −2.5，−3.75

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参考文献(25)

[1]	SMITH F W. Lubricant behaviour in concentrated contact systems: the castor oil-steel system[J]. Wear,1959,2(4): 250-263. doi: 10.1016/0043-1648(59)90264-9
[2]	SMITH F W. The effect of temperature in concentrated contact lubrication[J]. ASLE Transactions,1962,5(1): 142-148. doi: 10.1080/05698196208972461
[3]	BAIR S,WINER W O. A rheological model for elastohydrodynamic contacts based on primary laboratory data[J]. Journal of Lubrication Technology,1979,101(3): 258-264. doi: 10.1115/1.3453342
[4]	HOUPERT L,FLAMAND L,BERTHE D. Rheological and thermal effects in lubricated EHD contacts[J]. Journal of Lubrication Technology,1981,103(4): 526-532. doi: 10.1115/1.3251731
[5]	EHRET P,DOWSON D,TAYLOR C M. On lubricant transport conditions in elastohydrodynamic conjuctions[J]. Proceedings of the Royal Society of London Series A: Mathematical,Physical and Engineering Sciences,1998,454(1971): 763-787. doi: 10.1098/rspa.1998.0185
[6]	KANETA M,NISHIKAWA H,KANADA T,et al. Abnormal phenomena appearing in EHL contacts[J]. Journal of Tribology,1996,118(4): 886-892. doi: 10.1115/1.2831624
[7]	郭峰,刘晓玲,杨沛然,等. 弹性流体动力润滑中的黏度楔理论[J]. 青岛建筑工程学院学报,2004,25(4): 75-80. GUO Feng,LIU Xiaoling,YANG Peiran,et al. Viscosity wedge in elastohydrodynamic lubrication[J]. Journal of Qingdao University of Technology,2004,25(4): 75-80. (in Chinese GUO Feng, LIU Xiaoling, YANG Peiran, et al. Viscosity wedge in elastohydrodynamic lubrication[J]. Journal of Qingdao University of Technology, 2004, 25(4): 75-80. (in Chinese)
[8]	GUO F,WONG P L. An anomalous elastohydrodynamic lubrication film: inlet dimple[J]. Journal of Tribology,2005,127(2): 425-434. doi: 10.1115/1.1866165
[9]	GUO F,WONG P L,GENG M,et al. Occurrence of wall slip in elastohydrodynamic lubrication contacts[J]. Tribology Letters,2009,34(2): 103-111. doi: 10.1007/s11249-009-9414-x
[10]	GUO F,LI X M,WONG P L. A novel approach to measure slip-length of thin lubricant films under high pressures[J]. Tribology International,2012,46(1): 22-29. doi: 10.1016/j.triboint.2011.03.015
[11]	SMEETH M,SPIKES H A. The influence of slide/roll ratio on the film thickness of an EHD contact operating within the mixed lubrication regime[J].Tribology Series,1996,31:695-703.
[12]	WEN Shizhu,ZHANG Yongbin. EHL performance of the lubricant with shear strength: Part Ⅰ boundary slippage and film failure[J]. Tribology Transactions,2000,43(4): 700-710. doi: 10.1080/10402000008982399
[13]	ZHANG Yongbin,WEN Shizhu. An analysis of elastohydrodynamic lubrication with limiting shear stress: Part I theory and solutions[J]. Tribology Transactions,2002,45(2): 135-144. doi: 10.1080/10402000208982532
[14]	ZHANG Yongbin,WEN Shizhu. An analysis of elastohydrodynamic lubrication with limiting shear stress: Part Ⅱ load influence[J]. Tribology Transactions,2002,45(2): 211-216. doi: 10.1080/10402000208982542
[15]	WU C W,MA G J. Abnormal behavior of a hydrodynamic lubrication journal bearing caused by wall slip[J]. Tribology International,2005,38(5): 492-499. doi: 10.1016/j.triboint.2004.10.004
[16]	MA G J,WU C W,ZHOU P. Wall slip and hydrodynamics of two-dimensional journal bearing[J]. Tribology International,2007,40(7): 1056-1066. doi: 10.1016/j.triboint.2006.10.003
[17]	POLAJNAR M,KALIN M. Effect of the slide-to-roll ratio and the contact kinematics on the elastohydrodynamic friction in diamond-like-carbon contacts with different wetting behaviours[J]. Tribology Letters,2015,60(1): 8. doi: 10.1007/s11249-015-0593-3
[18]	刘奕壕,黄柏林,付忠学,等. 基于Circular模型的大剪应变率点接触弹流界面滑移数值分析[J]. 摩擦学学报,2018,38(2): 129-137. LIU Yihao,HUANG Bailin,FU Zhongxue,et al. Numerical analysis of EHL boundary slip effect applying circular model under big shear strain rate[J]. Tribology,2013,33(2): 112-117 (in Chinese LIU Yihao, HUANG Bailin, FU Zhongxue, et al. Numerical analysis of EHL boundary slip effect applying circular model under big shear strain rate[J]. Tribology, 2013, 33(2): 112-117 (in Chinese)
[19]	LI Shuyi,GUO Feng,LI Xinming,et al. Effect of the slide-roll ratio on point contact EHL under oil droplet supply[J]. Tribology International,2019,130: 261-269. doi: 10.1016/j.triboint.2018.09.029
[20]	周亚博,王优强,魏聪,等. 表面改性对滑动轴承弹流润滑的影响[J]. 机械传动,2019,43(5): 27-31,69. ZHOU Yabo,WANG Youqiang,WEI Cong,et al. Influence of interracial modification on EHL of journal bearing[J]. Journal of Mechanical Transmission,2019,43(5): 27-31,69. (in Chinese ZHOU Yabo, WANG Youqiang, WEI Cong, et al. Influence of interracial modification on EHL of journal bearing[J]. Journal of Mechanical Transmission, 2019, 43(5): 27-31, 69. (in Chinese)
[21]	陈琪,杨萍,江楠,等. 不同滑滚比下润滑油膜流变特性试验观察与数值模拟[J]. 摩擦学学报,2020,40(2): 158-165. CHEN Qi,YANG Ping,JIANG Nan,et al. Experimental observation and numerical simulation of rheological properties of lubricating films under different sliding-rolling ratios[J]. Tribology,2020,40(2): 158-165. (in Chinese CHEN Qi, YANG Ping, JIANG Nan, et al. Experimental observation and numerical simulation of rheological properties of lubricating films under different sliding-rolling ratios[J]. Tribology, 2020, 40(2): 158-165. (in Chinese)
[22]	陈琪,杨萍,栗心明,等. 不同滑滚比条件下脂润滑膜剪切特性试验观察[J]. 中国科学(技术科学),2020,50(3): 361-368. CHEN Qi,YANG Ping,LI Xinming,et al. Experimental observation of shear properties of grease film at different sliding rolling ratios[J]. Scientia Sinica (Technologica),2020,50(3): 361-368. (in Chinese doi: 10.1360/SST-2019-0084 CHEN Qi, YANG Ping, LI Xinming, et al. Experimental observation of shear properties of grease film at different sliding rolling ratios[J]. Scientia Sinica (Technologica), 2020, 50(3): 361-368. (in Chinese) doi: 10.1360/SST-2019-0084
[23]	ZHAO Y,WONG P L,MAO J H. Solving coupled boundary slip and heat transfer EHL problem under large slide-roll ratio conditions[J]. Tribology International,2019,133: 73-87. doi: 10.1016/j.triboint.2019.01.013
[24]	ZHAO Y,WONG P L. Thermal-EHL analysis of slip/no-slip contact at high slide-to-roll ratio[J]. Tribology International,2021,153: 106617. doi: 10.1016/j.triboint.2020.106617
[25]	王新庆,唐洪伟,王静,等. 表面粗糙峰/谷对大滑滚比线接触热弹流润滑接触的影响[J]. 润滑与密封,2023,48(12): 17-22. WANG Xinqing,TANG Hongwei,WANG Jing,et al. Effects of surface ridge and groove on thermal EHL in line contact with large slide-roll ratio[J]. Lubrication Engineering,2023,48(12): 17-22. (in Chinese doi: 10.3969/j.issn.0254-0150.2023.12.003 WANG Xinqing, TANG Hongwei, WANG Jing, et al. Effects of surface ridge and groove on thermal EHL in line contact with large slide-roll ratio[J]. Lubrication Engineering, 2023, 48(12): 17-22. (in Chinese) doi: 10.3969/j.issn.0254-0150.2023.12.003