Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Thomas Küpper

Uwe Pfeifer

Ulrich Ehehalt

Bernd Lacombe

Dirk Huckriede

Ingo Balkowski

Oliver Hensel

Ümit Mermertas

A method for operating a machine plant having a shaft train, including: a) determining the harmonic frequency of a torsional vibration mode of the shaft train and determining mechanical stresses arising during a vibration period of the torsional vibration mode; b) determining a correlation for each torsional vibration mode between a first stress amplitude, at a position of the shaft train that carries risk of stress damage, and a second stress amplitude, at a measurement location of the shaft train, using stresses determined for the respective torsional vibration mode; c) establishing a maximum first stress amplitude for the position; d) establishing a maximum second stress amplitude, corresponding to the maximum first stress amplitude, for the measurement location; e) measuring the stress of the shaft train while rotating; f) determining a stress amplitude at each harmonic frequency; g) emitting a signal when the stress amplitude reaches the maximum second stress amplitude.

Method for operating a machine plant having a shaft train

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Kaarst, Germany

Thomas Küpper