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Effects of micro-wedges formed between parallel surfaces on mixed lubrication – Part II: modeling

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Abstract

The hydrodynamic effects of micro-wedges formed by asperities on two parallel surfaces in parallel sliding have been proved to be significant on mixed lubrication in the Part I of the present research. In this part of study, a theoretical model for the concept of micro wedges is proposed and used for calculating the hydrodynamic load and friction. The results show that the main influential factor on hydrodynamic effects was the separation of the two rough surfaces. Such a separation governed by the heights of highest asperities determined the minimum gaps of the micro-wedges and so thus the hydrodynamic effects. The calculated results were consistent with experimental evidence, especially, in mixed friction.

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Taiwan University, 106, Taipei, Taiwan, ROC

    H. So & C.H. Chen

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  1. H. So
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  2. C.H. Chen
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Correspondence to H. So.

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So, H., Chen, C. Effects of micro-wedges formed between parallel surfaces on mixed lubrication – Part II: modeling. Tribol Lett 19, 83–91 (2005). https://doi.org/10.1007/s11249-005-5083-6

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  • DOI: https://doi.org/10.1007/s11249-005-5083-6

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