Influence of the Moment of Inertia of Rigid Body CPVA on the Vibration Suppression Effect

Abstract

Torsional vibration is noticeable in engines with a reduced number of cylinders for the purpose of reducing automobile exhaust gas. To suppress the torsional vibration, centrifugal pendulum vibration absorbers (CPVA) have been used in the engine. Many non-linear analyses of CPVA used point mass model, and there are few analyses of CPVA used rigid body model. In this research, numerical simulation of tuned rigid body CPVA has performed. The influence of the moment of inertia on the damping effect of the torsional vibration was verified. Moreover it indicated sufficient damping effect may not be obtained depending on the value of the moment of inertia.