Theoretical Model for the Optimal Design of Surface Texturing on Piston Compression Ring

Abstract:

A Theoretical model was developed to study the potential use of surface texturing for reducing the friction between a piston ring and cylinder liner. The model can predict the load-carrying capacity and friction force of the piston compression ring from Reynolds equation. The investigation is carried out using different dimple depths as well as different dimple diameters. Micro-dimples on the piston ring were able to generate significant hydrodynamic support. Numerical results show that surface texturing can decrease the friction force and extend the load-carrying capacity. The optimum surface texturing parameters such as dimples depth and dimples diameter were found.

• Periodical: Applied Mechanics and Materials (Volume 787)
• Pages: 327-331
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.787.327
• Online since: August 2015
• Authors: S. Prakash*, G. Nagarajan
• Keywords: Engine Friction, Hydrodynamic Lubrication, IC Engine, Piston Ring, Surface Texturing

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