Dynamic model for high-speed rotors based on their experimental characterization

Rotating systems components such as rotors, have dynamic characteristics which are of great importance to understand because they may cause failure of turbomachinery. Therefore, it is required to study a dynamic model to predict some vibration characteristics, in this case, the natural frequencies a...

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Bibliographic Details
Published in2016 IEEE International Engineering Summit, II Cumbre Internacional de las Ingenierias (IE-Summit) pp. 1 - 5
Main Authors Santiyanes, Luis Alvaro Montoya, Osorio, Helen Janeth Zuniga, Cuatzin, Hugo Gamez, Vazquez, Eloy Edmundo Rodriguez, Alonso, Israel Mejia, Castillo, Jose Cruz Pineda
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2016
Subjects
Computational modeling
Finite element analysis
finite element analysis (FEA)
modal analysis
natural frequency
Predictive models
rotordynamics
Rotors
Shafts
Shape
Vibrations
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Summary:Rotating systems components such as rotors, have dynamic characteristics which are of great importance to understand because they may cause failure of turbomachinery. Therefore, it is required to study a dynamic model to predict some vibration characteristics, in this case, the natural frequencies and mode shapes (both of free vibration) of a turbocompressor shaft by using the finite element analysis (FEA). The peculiarity of the dynamic model is that it is based on input data obtained experimentally, so it is automatically validated by comparing the output data. The natural frequencies and mode shapes of the rotor were obtained with experimental modal analysis by using the impact test. The results predicted by the model are in good agreement with the experimental test. The model is also flexible with other geometries and has a great time and computing performance, which can be evaluated with respect to other commercial software's in the future.
DOI:10.1109/IESummit.2016.7459762