Multi-scale simulation of three-dimensional thin-film lubrication
文献类型：期刊论文
| 作者 | Wu ZB(武作兵)1,2; Wu ZB(武作兵)
|
| 刊名 | FRICTION
 |
| 出版日期 | 2020-08-06 |
| 页码 | 17 |
| 关键词 | thin-film lubrication film-substrate coupling strength multi-scale method friction |
| ISSN号 | 2223-7690 |
| DOI | 10.1007/s40544-019-0349-4 |
| 通讯作者 | Wu, Zuobing(wuzb@lnm.imech.ac.cn) |
| 英文摘要 | For three-dimensional (3D) mono-layer molecular thin-film lubrication, the elasticity of the substrate affects the tribological behaviors of a thin fluid film confined by two solid substrates. To account for the elastic effects, this study establishes a multi-scale method that combines an atomistic description of the near region with a coarse-grained description of the far region of the solid substrate to simulate the thin-film lubrication. It is demonstrated that for a given temperature range and film-substrate coupling strength, the multi-scale method is in excellent agreement with the fully atomistic simulation. This study reveals that the elastic response of the substrate can be effectively rendered in the hybrid scheme. In the application of the multi-scale method to investigate the tribological properties of the multi-layer molecular thin-film lubrication, it is determined that the systematic static friction coefficient monotonously decreases as the molecular layer thickness in the fluid film increases. In comparison to the mono-layer molecular thin-film lubrication, the multi-layer molecular thin-film lubrication plays a role in reducing the friction and wear of the system. |
| 分类号 | 一类 |
| WOS关键词 | CONTINUUM ; RHEOLOGY ; ORIGIN |
| 资助项目 | National Natural Science Foundation of China[11172310] ; National Natural Science Foundation of China[11472284] ; Chinese Academy of Sciences (CAS) Strategic Priority Research Program[XDB22040403] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000556654600001 |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences (CAS) Strategic Priority Research Program |
| 其他责任者 | Wu, Zuobing |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/84877]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wu ZB(武作兵) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wu ZB,Wu ZB. Multi-scale simulation of three-dimensional thin-film lubrication[J]. FRICTION,2020:17. |
| APA | 武作兵,&Wu ZB.(2020).Multi-scale simulation of three-dimensional thin-film lubrication.FRICTION,17. |
| MLA | 武作兵,et al."Multi-scale simulation of three-dimensional thin-film lubrication".FRICTION (2020):17. |
入库方式： OAI收割
来源：力学研究所
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