Experimental study of EHL film thickness behaviour at high speed in ball-on-ring contacts

Yaoguang Zhang, Wenzhong Wang*, Shengguang Zhang, Ziqiang Zhao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

To date few experimental studies of EHL film are at speed above 5 m/s, and most optical EHL experiment is based on classical ball-on-disc contact. This paper presents a newly developed optical EHL test rig in ball-on-ring contact for the investigation of film thickness at high speed. Tests are conducted under tractive rolling condition up to 52 m/s. Results show that, film thickness follows classical prediction at low speed, deviates but still increases at medium speed and finally decreases at very high speed; severe sliding occurs at high speed; the film thickness profile along motion direction changes from flat to wedge.

Original languageEnglish
Pages (from-to)216-223
Number of pages8
JournalTribology International
Volume113
DOIs
Publication statusPublished - Sept 2017

Keywords

  • Ball-on-ring
  • EHL film thickness
  • High speeds
  • Optical interference

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Zhang, Y., Wang, W., Zhang, S., & Zhao, Z. (2017). Experimental study of EHL film thickness behaviour at high speed in ball-on-ring contacts. Tribology International, 113, 216-223. https://doi.org/10.1016/j.triboint.2017.02.040