Non-Linear Unstability Model and Analysis of the Engine Main Journal Bearing

Abstract:

On the base of Reynolds equation, the dynamic load of an engine crankshaft main journal bearing system is studied. The oil film pressure is solved from the non-Newtonian Reynolds equation with non-linear model of a finite length journal bearing. The flexible crankshaft is coupling with hydrodynamic lubrication of bearing film. The elastohydrodynamic bearing is treated as non-linear bearing with the finite difference method when considered the unstability load that was acted on the main journal. This paper aims to identify the non-linear effect of engine main bearing in the case of unstability load.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 790-794
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.790
• Online since: December 2012
• Authors: Kang Shao, Chang Wen Liu, Feng Rong Bi, Xia Wang, Jian Zhang
• Keywords: Crankshaft, Diesel Engine, Elastohydrodynamic, Journal Centre Orbit, Main Bearing, Reynolds Equation

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