A Mixed EHL Model of Finite-Length Line Contact Considering Asperity
 Elasto-Plastic Deformation and the Lubricant Properties

doi:10.16183/j.cnki.jsjtu.2018.05.004

Abstract

Abstract: The thermal mixed lubrication model of finite-length line contacts is established, which takes account of the elasto-plastic deformation of the asperities and boundary-film tribo-chemistry properties.The model is verified by comparing the infinite-length theoretical model, the elastohydrodynamic lubrication (EHL) test rig and double-disk experimental data.Then the effect of surface roughness and the lubricant properties on the lubrication and friction are preliminarily discussed. The results show that reducing the surfuce roughness can effectively improve the scuffing resistance under the current operating conditions.

Key words: finite-length line contact, mixed lubrication, boundary film, elasto-plastic deformation

CLC Number:

TH 117.2

WANG Zhijian,CHEN Xiaoyang,SHEN Xuejin. A Mixed EHL Model of Finite-Length Line Contact Considering Asperity Elasto-Plastic Deformation and the Lubricant Properties[J]. Journal of Shanghai Jiaotong University, 2018, 52(5): 525-532.

References

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A Mixed EHL Model of Finite-Length Line Contact Considering Asperity Elasto-Plastic Deformation and the Lubricant Properties

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