Fong, J. Y. and Chong, W. W. F. (2019) Tribological analysis on the effect of heat transfer towards engine incylinder friction. Journal of Transport System Engineering, 6 (1). pp. 1732. ISSN 2289–9790

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Abstract
The aim of this study is to determine the effect of heat transfer towards engine incylinder frictional losses, generated by the piston ring pack sliding along the engine cylinder liner. A mathematical model is derived from the 1D Reynolds equation, using Reynolds’ boundary condition, to determine the contact pressure distribution along the ringliner conjunction. Meanwhile, the lubricant temperature profile is solved using the 1D energy equation, considering heat conduction and viscous heating effect. The mathematical models are implemented in Cprogram. The minimum film thickness and the total friction force from the current model are showing good correlation with literature data. The results showed that heat conduction mechanism predominates the viscous heating effect in the ringliner conjunction. Meanwhile, the boundary friction predominates the contribution of viscous friction, especially along the vicinity of dead centres. However, the boundary friction is not affected by the changes in lubricant viscosity. Hence, from an overall engine operation point of view, the effect of heat transfer towards the total friction force generated by the ring pack could be considered trivial.
Item Type:  Article 

Uncontrolled Keywords:  Piston ring, tribology, heat transfer, 1D Reynolds equation, engine incylinder friction 
Subjects:  T Technology > TJ Mechanical engineering and machinery 
Divisions:  Mechanical Engineering 
ID Code:  84961 
Deposited By:  Fazli Masari 
Deposited On:  29 Feb 2020 13:50 
Last Modified:  29 Feb 2020 13:50 
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