Numerical modeling of aeroelastic behavior of GTU centrifugal compressor rotor

This paper deals with simulating oscillatory modes for the centrifugal compressor rotor of the gas transmittal unit by means of computational experiments taking into account rigid type supports and aeroelastic processes in the wheels. Validation of the aeroelastic approach was carried out on the model problem of interaction between a supersonic flow and a deformable plate in the shock tube. For numerical simulation the ANSYS engineering analysis system was used in this work. The research methods are the finite volume method for gas dynamics and the finite element method for estimating components of the stress-strain state. Dependences of pressure and stress-strain state components on geometric, physical-mechanical, kinematic parameters of the rotor and characteristics of the working fluid in compressors of gas transmittal units are obtained.