Diesel Engine Turbochargers: Analysis and Testing

Abstract

Turbochargers have been and still are a necessity when we talk about internal combustion engine downsizing. The turbocharger is the engine part that produces multiple vibrational and noise phenomena during functioning. Regarding the optimization related to noise and vibration produced by turbochargers, in this paperwork, there were accomplished several software simulations and laboratory tests. The simulations were accomplished in order to highlight the main natural frequencies that could occur during the turbocharger's functioning. For validating the data sets obtained by simulations there were performed test rig tests were focused on the rotor dynamic stability of turbochargers.