A Study on the Center Movement of Crankshaft in Internal Combustion Engine
The center movement tracks of the crankshaft for all of these bearings in a V-type diesel engine were calculated by means of a corrective Holland algorithm. The calculation included different calculating conditions, such as different size of counterweights on the crankshaft, different bearing clearances and different viscosity of lubrication oil and so on. The calculation results show that the most important factor of effecting the center movement of crankshaft is the acting direction of the bearing load. Taking any radius ray of the bearing as a reference, if the variation scope of the acting direction of bearing load in one working cycle of engine is limited in ±90 degree in two sides of the ray, the center movement of the crankshaft is fairly stable. If the variation scope of the acting direction is beyond the area, the center movement of the crankshaft becomes very unstable. A small change of some factors, such as bearing clearance or oil viscosity, will result violence change of the center movement tracks.
diesel enginebearingcenter movement trackHolland algorithmbearing load
NETL
NSTL
万方数据
维普
