Assessing Torsional Vibrations in Turbogenerators

An important result of the project is, that reliable assessment statements are only possible by combining the three Vibration Analysis tools of Theoretical Modeling, Numerical Analysis and Experimental Analysis. An important part for the Assessment is the Torsinal Vibration Monitoring system. The Monitoring system starts with the data acquisition, the signal conditioning and processing, followed by a feature extraction. The extracted features are then used for fault detection, diagnosis, and prognosis, enabling a reliable assessment of the mechanical integrity and remaining lifetime of the turbogenerator shaft system. Besides existing Monitoring systems new developments based on Digital Twins are also treated in this report.