Modeling Solid Contact between Rough Surfaces with Various Roughness Parameters

Tatsunori Tomota, Ryo Masuda, Yasuhiro Kondoh, Toshihide Ohmori, Kazuyuki Yagi

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

A solid contact model with high accuracy is required for mixed lubrication calculation to predict friction loss and wear in sliding parts by computer-aided engineering; however, existing models have numerous limitations. A new asperity contact model was constructed to determine contact states using the roughness parameters of pairs of surfaces. Although the contact states differed greatly depending on differences in skewness and kurtosis, the calculated results of the proposed model agreed well with the results of direct calculation between various pairs of surfaces. Furthermore, even when the pairs of rough surfaces had the same composite roughness, skewness, and kurtosis, the trend of the increase in the contact force was different when the individual skewness and kurtosis of the surfaces were different. Therefore, we determined that it is necessary to carry out detailed asperity contact calculations when the two rough surfaces differ greatly. We plan to further investigate the influence of skewness and kurtosis on the contact tendency for the elastoplastic deformation by the extended model considering the contact stress distribution of asperities.

本文言語英語
ページ(範囲)178-192
ページ数15
ジャーナルTribology Transactions
64
1
DOI
出版ステータス出版済み - 2021

All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 表面および界面
  • 表面、皮膜および薄膜

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