Analysis for torsional vibration of crankshaft system of six-cylinder-in-line engine

摘要

Crankshaft torsional vibration characteristics have been studied, more often based on the results of measurement at a pulley, rather than in relation to a pulley, The results of the measurement at a pulley, however, include crankshaft torsion assuming that a crankshaft is elastic, as well as rotational Speed changes due to cylinder pressure fluctuation assuming that a crankshaft is rigid. The authors recommend that torsional amplitude of a flywbeel in relation to a pulley should be used in evaluating torsional vibration characteristics, rather than torsional amplitude at a pulley.