Develop of a New Gas Lubrication System using a Rarefied Gas Effect

利用稀薄气体效应开发新型气体润滑系统

• 批准号: 23560184
• 负责人: YONEMURA Shigeru
• 金额: $ 3.41万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560184/
• 关键词: 希薄気体力学; 気体潤滑; トライボロジー; ボルツマン方程式; 分子流体力学; DSMC法; 流体工学; 分子気体潤滑方程式

It was reported that in the case where partially-polished diamond-coated surface is used for sliding, the friction coefficient is drastically reduced as sliding speed increases. It was also reported that the surface texturing results in good tribological performance of sliding surfaces. The reason of their good tribological performance may be because the lift force is induced by the surface structure in micro/nanosclale gas flow between sliding surfaces. However, the understanding of these phenomena is not enough, and, the past researches were performed by the trial-and-error method. In the present work, in order to understand these phenomena clearly, the mechanism of high gas pressure generation induced by the micro surface structure was theoretically clarified. Using the knowledge obtained here, we clarified the optimal shape of surface structure. Our theory was validated by the sliding experiment.

据报道，在使用部分抛光的金刚石涂层表面进行滑动的情况下，随着滑动速度的增加，摩擦系数急剧降低。据报道，表面纹理可以使滑动表面具有良好的摩擦学性能。其良好摩擦学性能的原因可能是因为升力是由滑动表面之间的微/纳米颗粒气流中的表面结构引起的。然而，对这些现象的认识还不够，过去的研究都是通过试错法进行的。在本工作中，为了清楚地理解这些现象，从理论上阐明了微表面结构引起的高气压产生的机制。利用此处获得的知识，我们阐明了表面结构的最佳形状。我们的理论通过滑动实验得到了验证。

项目成果

分子気体潤滑の流れパラメータによる分析

使用流动参数分析分子气体润滑

• 发表时间: 2012
• 作者: Matsuda;K.;Adachi;T.;Ryu;Y.;Okajima;J.;and Akinaga;T.;磯野晋,米村茂,竹野貴法,三木寛之,高木敏行
• 通讯作者: 磯野晋,米村茂,竹野貴法,三木寛之,高木敏行

三次元的な摺動面のマイクロ・ナノ気体潤滑に関する研究

三维滑动表面微纳气体润滑研究

• 发表时间: 2013
• 作者: 佐藤 秀典;茂田 正哉;伊澤 精一郎;福西 祐;Takahiro Adachi;川越吉晃,米村茂,磯野晋,竹野貴法,三木寛之,高木敏行
• 通讯作者: 川越吉晃,米村茂,磯野晋,竹野貴法,三木寛之,高木敏行

Mechanism of Levitation of a Slider with a Micro/Nanoscale Surface Structure on a Rotating Disk

转盘上微纳尺度表面结构滑块的悬浮机理

• DOI: 10.1007/s11249-014-0368-2
• 发表时间: 2014
• 期刊: Tribology Letters
• 影响因子: 3.2
• 作者: Shigeru Yonemura;Susumu Isono;Masashi Yamaguchi;Yoshiaki Kawagoe;Takanori Takeno;Hiroyuki Miki;Toshiyuki Takagi
• 通讯作者: Toshiyuki Takagi

A study of floating of a slider with micro/nanoscale surface structure on a rotating disk

微纳尺度表面结构滑块在转盘上的浮动研究

• DOI: 10.1063/1.4902672
• 发表时间: 2014
• 期刊: AIP Conference Proceedings
• 作者: Shigeru Yonemura;Susumu Isono;Masashi Yamaguchi;Yoshiaki Kawagoe;Takanori Takeno;Hiroyuki Miki;Toshiyuki Takagi
• 通讯作者: Toshiyuki Takagi

Numerical Analysis of Micro-/Nanoscale Gas-Film Lubrication of Sliding Surface with Complicated Structure

复杂结构滑动面微纳尺度气膜润滑数值分析

• 发表时间: 2014
• 作者: Yoshiaki Kawagoe;Shigeru Yonemura;Susumu Isono;Takanori Takeno;Hiroyuki Miki;Toshiyuki Takagi
• 通讯作者: Toshiyuki Takagi