The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2020
Filed:
Aug. 27, 2015
Siemens Aktiengesellschaft, Munich, DE;
Ingo Balkowski, Kerken, DE;
Ulrich Ehehalt, Essen, DE;
Oliver Hensel, Mülheim an der Ruhr, DE;
Dirk Huckriede, Korschenbroich, DE;
Thomas Küpper, Kaarst, DE;
Bernd Lacombe, Raesfeld, DE;
Ümit Mermertas, Mülheim an der Ruhr, DE;
Uwe Pfeifer, Berlin, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
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.