Experimental study of the effects of surface roughness on friction

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49 引文 斯高帕斯(Scopus)


Experimental verification of lubrication theories for surface roughness effects is lacking. We have conducted an experimental study using riblet tapes to generate repeatable surfaces on the test samples. A computer-assisted pin-on-disk tribometer roas developed to measure the friction of the test samples. To study the effects of roughness height and lay orientation on friction, machined samples and samples with different riblet tapes mounted longitudinally and transversely xuere tested. Our results show that lower roughness height yields lower friction, and that transverse roughness has lower friction than longitudinal roughness. The surface roughness effects become increasingly significant as the film thickness decreases. These findings substantiate earlier theoretical studies. A flow visualization system for the tribometer zuas also developed to observe flow characteristics of different surface roughnesses.

頁(從 - 到)402-409
期刊Tribology Transactions
出版狀態Published - 1990 七月

All Science Journal Classification (ASJC) codes

  • 材料力學
  • 機械工業
  • 表面和介面
  • 表面、塗料和薄膜


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