Numerical and Experimental Study of a Sector-Shaped Surface Texture in Friction Reduction

Reducing friction using lubricant is of great significance to reducing energy consumption and extending the life of machinery. Surface texturing is effective to enhance the lubrication condition, and it is crucial to properly design the texture’s morphology. In this study, a sector-shaped surface texture is designed and demonstrated using both numerical and experimental methods. A computational fluid dynamic method based on Navier–Stokes equations and a two-phase cavitation model is performed to evaluate the effect of the texture in the hydrodynamic lift and to optimize the geometrical parameters of the texture. The mechanism associated with the additional hydrodynamic pressure generation is also revealed according to the results of the simulation. Then, pin-on-disk rotary friction experiments are performed on steel disks textured by a femtosecond laser to verify the lubricant effect of the proposed texture. The results of the experiment suggest that the sector-shaped textures reduce friction more than conventional circle-shaped textures, which coincides well with the results of the simulation.

相关文章

  • Advances in Self-powered Triboelectric Sensor toward Marine IoT
    [Yongjiu Zou, Minzheng Sun, Shuang Li, Xinyu Zhang, Liang Feng, Yu Wang, Taili Du, Yulong Ji, Peiting Sun, Minyi Xu]
  • Stretchable Electronic Facial Masks for Skin Electroporation
    [Xinkai Xu, Liang Guo, Hao Liu, Zanxin Zhou, Shuang Li, Qi Gu, Shenglong Ding, Haitao Guo, Yan Yan, Yuqun Lan, Qinlan Li, Wanxin Wei, Jian Zhang, Chong Liu, Yewang Su]
  • Metal–Organic Framework Based Triboelectric Nanogenerator for a Self-Powered Methanol Sensor with High Sensitivity and Selectivity
    [Hong-Zhi Ma, Chen Luo, Jiang-Nan Zhao, Yan Shao, Yu-Hao Zhang, Xu Liu, Shuang Li, Bo Yin, Kai Zhang, Kai Ke, Ling Zhou, Ming-Bo Yang]
  • 成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周峰/裴小维

    联系电话:18919198811

    电子邮箱:zhouf@licp.cas.cn

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周峰/裴小维

    联系电话:18919198811

    电子邮箱:zhouf@licp.cas.cn

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周峰/裴小维

    联系电话:18919198811

    电子邮箱:zhouf@licp.cas.cn

    成果名称:低表面能涂层

    合作方式:技术开发

    联 系 人:周峰/裴小维

    联系电话:18919198811

    电子邮箱:zhouf@licp.cas.cn

    润滑集