Influence of Conrod Length on Wear of I.C. Engine Crankshaft Bearing

摘要

In this article was examined influence of the ratio between piston rod length and crank radius on weardiagram of I.C. engine crankshaft bearing. Since crankshaft main journals belong to a group of highest loaded engineparts, it is very important to know forces acting on them. If a polar load diagram for each main journal is known, thenthe forces are fully defined. The importance of field examinations of bearing failures due to wear is very well knownand in this article we try to find relation between kinematic rod ratio and forces on crankshaft. In this way, a usefulapproach has been defined for determining how various engine and crankshaft parameters affect a cumulative load andtheoretical wear profiles of journal bearings, and can be used in the process of bearing and lubrication system design.