Analysis of Test Results of Turbine Bladed Discs

Authors: Seleznev V.G., Pavlov Yu.I., Il Published: 09.02.2015
Published in issue: #1(100)/2015  

DOI: 10.18698/0236-3941-2015-1-93-100

Category: Power Engineering | Chapter: Turbomachines and Combination Turbine Plants  
Keywords: forced vibrations, self-excited vibrations, Van der Pol equation, spectral analysis, holographic interferometry

Interpretation of testing results of the turbine bladed wheels obtained with the holographic interferometry method, is presented. It is known that this method gives a possibility to receive full information concerning the forms and frequencies of vibration of any wheel without rotation. Comparison of this information with the data of strain measurement at different rotational speeds gives more knowledge about the turbomachine bladed disc strain state.


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