Effect of axial piston pin motion on tribo-dynamics of piston skirt-cylinder liner system
Abstract
Purpose
The purpose of this study is to investigate the effects of the axial piston pin motion on the tribological performances of the piston skirt and cylinder liner vibration for an internal combustion engine (ICE) under different operation conditions.
Design/methodology/approach
The dynamic equation for the piston incorporating into axial piston pin motion is derived first. Then, the proposed equation and associated lubrication equations are solved using the Broyden algorithm and difference method, respectively. Moreover, the axial motion of the piston pin and its slap on the cylinder liner are studied under different operation conditions.
Findings
The axial piston pin motion leads to an overall increase in the friction power consumption. Increments in the ICE speed and lubricant viscosity can augment the axial pin motion and cylinder liner vibration, especially in the power stroke. The said increments cause the instability of the piston motion in the cylinder. The axial motion of piston pin can be restrained through the eccentricity of the piston pin close to the thrust side of the cylinder liner.
Originality/value
This study conducts detailed discussions of the effect of axial piston pin motion on tribological and dynamic performances for piston skirt-cylinder liner system of an internal combustion engine and gives a helpful reference to analyses and designs of internal combustion engines.
Keywords
Acknowledgements
This research is supported by the Fundamental Research Funds for the Central Universities of P.R. China (No. 106112015CDJZR118805). The authors declare no potential conflicts of interest with respect to the research, authorship and/or publication of this article.
Citation
Meng, F., Du, M., Wang, X., Chen, Y. and Zhang, Q. (2018), "Effect of axial piston pin motion on tribo-dynamics of piston skirt-cylinder liner system", Industrial Lubrication and Tribology, Vol. 70 No. 1, pp. 140-154. https://doi.org/10.1108/ILT-09-2016-0229
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited