Improvement of dynamic behaviour of semi-floating turbocharger with focus on harmonic vibrations
Dr.-Ing. Christian Daniel
The aim of the current project is a detailed investigation of the non-linear behaviour of a semi-floating turbocharger for the whole operation range. For this task a model is necessary including the eigenbehaviour of the rotor as well as a detailed bearing model and a suitable thermal model. In addition the simulations have to be compared with measurements. Finally suggestions shall be stated to reduce the harmonic vibrations by change of geometrical parameters and by improvement of the balancing process always in the context of resulting friction power and subharmonic vibrations.
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