Modelling for a Turbocharger in Rotordynamics

Turbochargers are widely used on commercial automotive vehicles, power generation and marine applications. A comprehensive model for a turbocharger would be an effective tool for fault detection. In this paper, research focus on mathematical modelling of turbochargers supported on floating ring bearings in rotordynamics. Nonlinear hydrodynamic forces are considered in order to describe the dynamic behaviour of the rotor system. Following model development, a numerical simulation is implemented. Vibration of turbocharger and floating ring under the influence of rotor imbalance are predicted.