Open AccessContemporary Approaches to the Vibration Diagnostics of Rotating Shafts
Author(s) -
A. Bovsunovsky,
Oleksandr Yu. Nosal
Publication year - 2022
Publication title -
journal of mechanical engineering
Language(s) - English
Resource type - Journals
eISSN - 2709-2992
pISSN - 2709-2984
DOI - 10.15407/pmach2022.01.015
Subject(s) - vibration , steam turbine , catastrophic failure , structural engineering , turbine , turbomachinery , range (aeronautics) , engineering , mechanical engineering , materials science , acoustics , aerospace engineering , physics , composite material
Rotating shafts are the most vulnerable part of steam turbines. They are subjected to a wide range of static and dynamic loading combined with high temperature. Different types of damage of rotating shafts in most cases are the result of this long-term combined loading. To avoid catastrophic failure of structural elements during operation of turbines, it is urgent to use reliable damage detection methods. A lot of investigations demonstrated that most appropriate as applied to the turbine shafts in operation are the vibration-based methods, in particular, the change of natural frequencies, the appearance of non-linear resonances, the change of vibrational spectrum and others. The paper contains the comparative analysis of most effective approaches to the vibration diagnostics of damage in rotating shafts of steam turbines.