Numerical Study of Thermal Effect on the Friction of Piston-cylinder Contact in an Internal Combustion Engine
Journal Title: Tribology in Industry - Year 2018, Vol 40, Issue 4
Abstract
For the different operating regime of an internal combustion engine, the compartment ‘Piston-Ring-Liner’ represents the largest share of frictional power loss. This study presents a numerical analysis of ThermoHydroDynamic (THD) lubrication of an internal combustion engine piston to evaluate the thermal effect on the friction of piston-cylinder contact by considering three thermal models: isothermal, Global Thermal (GT) and THD. The results show that the choice of the thermal model has a great influence on the tribological characteristics of the piston-cylinder contact. The transition from the isothermal model to the THD model will lead to a decrease of approximately 6% of the minimum oil film thickness and an increase of 4% of the hydrodynamic pressure, and the transition from the GT model to the THD model will decrease 30% of the friction force in the piston-cylinder contact during an engine cycle.
Authors and Affiliations
M. Belahcene, R. Mazouzi
Keywords
Related Articles
- EP ID EP460393
- DOI 10.24874/ti.2018.40.04.11
- Views 59
- Downloads 0
Analysis of Three Body Abrasive Wear Behaviour of Centrifugally Cast Aluminium Composite Reinforced with Ni Coated SiC using Taguchi Technique
The aim of the present research is to determine the abrasive wear behavior of functionally graded Al LM21/10wt.% Ni coated SiC composite fabricated by centrifugal casting route. The centrifugal cast hollow cylindrical pa...
Development of Aplication for Analysis of Machinability Index
Rapid development of new materials, cutting tools and cutting fluids promote research of machinability for new materials and tribological characteristic of cutting tools and cutting fluids. Material machinability is very...
Tribological Properties of Biodegradable Universal Tractor Transmission Oil
The annual consumption of lubricants in the world is around 40 million tons out of which less than 40 % are collected and properly processed meaning regeneration, re-refining and controlled incineration while the rest is...
Ball-Ring Friction at Low Rotating Speed
The paper presents an experimental research of rolling friction between a ball and a ball bearing ring. An original computer assisted test rig was build in order to evaluate the rolling friction phenomenon, between balls...
Experimental Comparison of the Behavior between Base Oil and Grease Starvation Based on Inlet Film Thickness
This paper deals with the experimental study of an elastohydrodynamic contact under conditions of insufficient lubricant supply. Starvation level of this type of the contact may be experimentally determined based on the...