ABSTRACT
This paper focuses on the selection of a bearing system for a newly designed energetic turbocompressor. Two alternative concepts of rotor support (consisting of two or three bearings) are analysed. Because the rotor must pass through several resonant speeds before it reaches the nominal speed, an in-depth dynamic analysis was carried out. The research presented in this paper proves that an increase in the number of bearings used to support the shaft does not necessarily have a positive impact on the dynamic performance of the rotor. Ultimately, one version of the rotor-bearing system has been approved for implementation.
