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Evaluation of tribological performance in mechanical components with contact pairs by implementing Biomimetic surface texturing using CFD techniques

Evaluation of tribological performance in mechanical components with contact pairs by implementing Biomimetic surface texturing using CFD techniques

Date28th Feb 2024

Time03:00 PM

Venue MDS Seminar Hall, Machine Design Section, New Rummy Game

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Details

Friction losses are the major losses in any mechanical components. So, reduction of friction is very much necessary to improve the performance of machines with the help of lubrication, but still it can’t help in starved lubrication condition, there comes surface texturing in handy. Surface texturing enhances the load-carrying capability and reduces the friction between interfaces by maintaining adequate lubricant film thickness. This study investigates the tribological advantages of a biomimetic teardrop surface texture inspired by snakeskin compared to conventional surface textures. Our objective is to assess these surface textures' geometrical and flow parameters using Computational Fluid Dynamics (CFD) techniques. We employed CFD to evaluate the performance of various surface textures, including the unique teardrop shape inspired by snakeskin and conventional textures. The results of our investigation reveal that the proposed teardrop-shaped surface texture outperforms conventional alternatives in terms of frictional performance and load-carrying capacity, especially under specific conditions involving depth ratio and sliding velocity. Furthermore, we conducted subsequent studies to optimize the tribological performance of the teardrop surface texture. This optimization process involved varying parameters such as orientation angles with the slider, surface area density, and pattern arrangement. In summary, our research demonstrates that the biomimetic teardrop surface texture, inspired by snakeskin, exhibits superior tribological performance compared to conventional textures. Additionally, through systematic optimization of various parameters, we enhanced its effectiveness in reducing friction and improving load-carrying capacity.

Speakers

Mr. MADAPARTHI ABHILASH (ME20S062)

Department of Mechanical Engineering