GAS TURBINE COMPRESSOR DISC NATURAL FREQUENCY CALCULATION

Abstract

The topic introduces theoretical work done in a diploma thesis. It contains procedure of calculating the natural frequency of gas turbine compressor or turbine rotor disc. Relations for calculating the natural frequency of a disc oscillation are step by step derived therein. To calculate the natural frequency is used Rayleigh's energetic method and the calculation for number of nodal lines is based on the specific procedure made in the MS Excel spreadsheet.