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Crack Detection and Dynamic Analysis of a Cracked Rotor with Soft Bearings Using Different Methods of Solution Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Rotor Orbits at Operation Speed and Model-Based Diagnosis of Multiple Errors

Authors : Thomas Thuemmel, Markus Rossner, Christian Wagner, Johannes Maierhofer, Daniel Rixen

Published in: Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM

Publisher: Springer International Publishing

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Abstract

Measured and simulated orbits of the rotor deflection and bearing forces are applied to understand and separate the effects of multiple, simultaneous errors. Hereto, the paper firstly defines a clear terminology which is mandatory when dealing with multiple errors. The physics and mathematical descriptions of several errors are summarized and illustrated for the Jeffcott rotor model. Furthermore, a short introduction to orbit dynamics is given including force orbits.
Based on these fundamentals, the authors present the theoretics of an online roundness error identification method. This method uses a Fourier decomposition for reconstruction the different components. One example recorded at an academic rotor test rig proves these methods.

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Metadata
Title
Rotor Orbits at Operation Speed and Model-Based Diagnosis of Multiple Errors
Authors
Thomas Thuemmel
Markus Rossner
Christian Wagner
Johannes Maierhofer
Daniel Rixen
Copyright Year
2019
Book
Proceedings of the 10th International Conference on Rotor Dynamics – IFToMM

Print ISBN: 978-3-319-99267-9

Electronic ISBN: 978-3-319-99268-6

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-99268-6_16

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