Abstract
Microstructured surfaces can reduce friction force between two contact pairs in relative motion under hydrodynamic contact. In this study, we evaluate the friction reduction performance of microdimpled surfaces with different cross-sectional profiles generated by nonresonant modulation cutting. Computational fluid dynamics simulation was conducted to simulate the friction reduction effect between surfaces with lubricants. An elliptical modulation texturing method is introduced based on a two-dimensional nonresonant vibration tool, which could generate adjustable high-frequency elliptical tool trajectories. Different dimpled surfaces were generated using three types of tool trajectories. Their influence on the friction reduction and load-carrying capacity were experimentally studied and evaluated by comparing the simulation and experimental results.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4120-4127 |
| Number of pages | 8 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science |
| Volume | 233 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jun 1 2019 |
Funding
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by the Innovation and Technology Fund, Hong Kong (grant #ITS/076/17); Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong (#BME-p6-16 and #RNE-p4-17); and Research Grants Council of Hong Kong (#ECS 24201816).
Keywords
- Friction reduction
- computational fluid dynamics
- elliptical vibration texturing
- machining
- nonresonant modulation cutting
ASJC Scopus subject areas
- Mechanical Engineering