0311 マイクロ・ナノスケール気体潤滑における摺動表面微細構造の形状の影響(OS302 ナノスケールの熱流動現象,オーガナイズドセッション)

概要

論文の詳細を見る
Nakamori et al. found experimentally that the friction between a partly polished diamond coating and a metal surface was drastically reduced to zero as relative speed increased to a few m/s. [Diamond Relat. Mater., 14, (2005), 2122]. It seems that diamond coating took off the counter surface because sliding was noiseless in their experiment. In the previous work, we successfully reproduced lift force large enough to suspend the slider used in the experiment and found that this effect became notable only for micro-/nanoscale gas flow [IFS-Tsinghua University Joint Workshop 2009, Proceedings of 6th International Conference on Flow Dynamics, 584 (2009)]. In the present paper, we investigate the effect of configuration of micro-/nanoscale structure on sliding surface on molecular gas-film lubrication. Since micro-/nanoscale gas flows between two sliding surface cannot be treated as a continuum, we use the direct simulation Monte Carlo (DSMC) method.
一般社団法人日本機械学会の論文
2010-10-29