Transient Thermal Hydrodynamic Lubrication Analysis of Textured Piston Ring/Cylinder Liner

Abstract:

On the basis of transient thermal hydrodynamic lubrication (TTHL) simulation and isothermal hydrodynamic lubrication (IHL) simulation of textured piston ring/cylinder liner, main factors influencing oil film temperature, distribution of the maximum temperature, and comparison between two models were discussed. The results show that texturing improves hydrodynamic lubrication situations, and velocity of piston ring and applied load are two important factors affecting oil film temperature. Apart from that, sever temperature elevation is located at the export of oil film and textured areas. Although change trends of the maximum of pressure and the minimum of oil film thickness are basically the same, the values of them are different. Temperature is a necessary element for analyzing the lubricant situations of piston ring/cylinder liner.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 172-178
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.172
• Online since: August 2018
• Authors: Sheng Gang Guo, Bin Wang*, Qiu Ying Chang
• Keywords: Piston Ring-Cylinder Liner, Temperature, Textured Surface, Transient Thermal Hydrodynamic Lubrication

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