The Effect of Surface Defect on EHL Point Contact

Yu Jin Fan; Zhe Kun Li; Wei Da Wang; Teng Han

doi:10.4028/www.scientific.net/AMR.765-767.67

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 765-767The Effect of Surface Defect on EHL Point Contact

The Effect of Surface Defect on EHL Point Contact

Abstract:

In this paper, the lubrication of three-dimensional EHL point contact with surface defect was solved, the lubrication film shape and film pressure distribution were presented and the characteristics of EHL point contact with defect were analyzed, the effect of surface defect on EHL point contact was studied. The results were presented that convex defect could lead to film pressure peak increasing, there was obvious micro-EHL effect, concave defect could lead to film pressure hollow and peak, film pressure peak was also increasing. The results also shown that convex and concave defects would have negative impact on EHL lubrication, there was great influence of surface defect on EHL lubrication pressure, the significant fluctuation of local film pressure was caused by surface defect, and generating greater pressure peak, maximum film pressure was rapid growth with the defect size increasing, so any kind defect should be to avoid in EHL lubrication.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

67-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.765-767.67

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Online since:

September 2013

Authors:

Yu Jin Fan, Zhe Kun Li, Wei Da Wang, Teng Han

Keywords:

Asperity, EHL Lubrication, EHL Point Contact, Lubrication, Surface Defect

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