Modal Properties of Turbo-Compressor Elements

In this paper some modal and vibration properties of turbocompressor elements are studied. Natural frequencies of turbokompressor rotor shaft with turbine and compressor wheels and bearing unit elements are calculated. Their spectrum dependence on the material properties of the elements and on the constructive variants of the bearing unit components are studied. Shape modes of the system are obtained . The vibrations of the system at the maximal angular velocity are estimated. The oscillations of the turbine and compressor blades are found for that angular velocity . The natural frequencies and shape modes of the separate blades of the turbine and compressor are found. The blades response to short pressure pulses are studied. The conditions of resonance are investigated.