Numerical model of mixed lubrication for microgroove bearing considering axial reciprocating motion

被引：0
|
作者：
Wang J.-X. [1 ,2 ]
Ni X.-K. [1 ,2 ]
Han Y.-F. [1 ,2 ]
Xiang G. [1 ,2 ]
Xiao K. [1 ,2 ]
机构：
[1] State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing
[2] College of Mechanical Engineering, Chongqing University, Chongqing
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 03期
关键词：
Mechanical design; Microgroove bearings; Mixed lubrication; Reciprocating movement;
D O I：
10.13229/j.cnki.jdxbgxb20180069
中图分类号：
学科分类号：
摘要：
A numerical model was developed to investigate the mixed lubrication performance of herringbone grooved journal bearing when axial reciprocating motion and journal misalignment were considered. The oil film pressure considering the roughness effect can be obtained by transient average Reynolds equation. The elastic deformation can be obtained through influence function method, and the contact pressure can be simulated by Lee-Ren asperity contact model. The variation of oil-film force, contact load ratio, and friction coefficient with time were investigated by numerical simulation, and the effect of axial movement amplitude and misalignment angle on mixed lubrication performance were also studied. The research suggests that the oil-film force is corresponding over axial velocity, and the contact pressure shows inverse variation with axial velocity. Besides, the increase of axial movement amplitude in negative movement state will result in a significant reduction in load capacity and lubrication performance of journal bearing. The research also shows that the load capacity and lubrication performance of journal bearing decrease with the increase in misalignment angle. © 2019, Jilin University Press. All right reserved.
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页码：888 / 896
页数：8
相关论文
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