Dynamická analýza rotoru leteckého motoru

Abstract

The master thesis deals with frequency and modal analysis of the aircraft engine rotor and its response of the harmonic excitation. The purpose of the analysis is creation of the Campbell diagram and determination of the frequency response characteristic of aircraft engine rotor taking into account uncertainties of the supports stiffness, damping and unbalance excitation. In the first part there is an analysis of rotor which contains description of basic parts and characteristics of rotary system and which of the basic properties will be essential in a solution. Next there is setting of the 1D mathematical model system of rotor and its modal parameters are tuning by 3D mathematical models. Followed-up by performing computer simulations, determination of Campbell´s graphs for supposed angular velocity and determination of the frequency response characteristic. In conclusion there are evaluated results and simulations of the rotor.