Methode zur Erkennung des Einflusses von äußeren Schwingungsanregungen bei der Wälzlagerzustandsüberwachung

Bauer, Manuel; Hoffmann, M.; Kley, Markus

doi:10.51202/9783181023662-343

Cited by 6 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Bauer et al (2019), a method is established for detecting the influence of these external vibration excitations. By creating a flow chart, this method distinguishes externally generated vibrations from conventional rolling bearing vibrations and detects them with the help of intelligent evaluation algorithms.…”

Section: Introductionmentioning

confidence: 99%

Comparison of envelope demodulation methods in the analysis of rolling bearing damage

Bauer

Balaratnam

Weidenauer

et al. 2022

Journal of Vibration and Control

View full text Add to dashboard Cite

In rotating machinery, especially in rolling bearing diagnostics, early and effective fault diagnosis is essential to ensure the reliability of rolling bearings. The commonly used vibration analysis gathers large amounts of information about the dynamics and the general condition of the bearings by recording vibrations generated by a rolling bearing. Within the vibration analysis, the location of the damage can be determined by using envelope demodulation. This is done by identifying the damage frequency within a damaged bearing. Peak-, Root-Mean-Square (RMS)-, and Hilbert-envelopes are the conventional demodulation methods in this field, but each of these methods is different and thus more or less suitable for particular applications. This paper presents a comparative study of these three methods. The selected envelopes are compared and evaluated through experiments, the evaluation of measurement data and the establishment of quality characteristics regarding efficiency and quality. In the process, a decision tool is created to help in the selection of a suitable envelope demodulation technique. A formula for calculating an optimal window size of the Peak-envelope is established, as well as a recommendation for selecting a window size of the RMS-envelope.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparison of envelope demodulation methods in the analysis of rolling bearing damage

Bauer

Balaratnam

Weidenauer

et al. 2022

Journal of Vibration and Control

View full text Add to dashboard Cite

show abstract

Enhanced damage classification accuracy on a transmission by extending existing datasets with generative adversarial networks

König

Wagner

Kley

et al. 2023

Forsch Ingenieurwes

View full text Add to dashboard Cite

In many areas of drive technology, condition monitoring of transmissions and drive systems is becoming an increasingly important discipline. Condition monitoring systems are used in many cases in combination with machine learning algorithms. The generation of a sufficient amount of data per condition class is relevant to ensure training stability and accuracy of the applied algorithms. Especially in early development phases a sufficient data generation is not often given. In the scope of this paper, a Generative Adversarial Network is applied to generate synthetic data and therefore extend existing measurement data sets. Acceleration data in three different condition classes is used, that has been collected on a gearbox as part of the PHM Data Challenge 2009. In order to highlight relevant features and reduce the number of data points, data is pre-processed via appropriate signal analysis techniques, in this case with the spectral kurtosis. It is shown, that in this use case the synthetically generated data via a Generative Adversarial Network has the same feature characteristics as the real measured data sets. The augmentation of the existing data set also improves the detection accuracy with artificial neural networks for the classification of different system states.

show abstract

Optimierung der Sensorpositionierung bei schwingungsbasierter Wälzlagerzustandsüberwachung unter Einbezug von Systemeigenmoden

Bauer

Wagner

Kley

2021

Tm - Technisches Messen

View full text Add to dashboard Cite

Zusammenfassung Bei der Schwingungsüberwachung von Wälzlagern ist die Wahl einer geeigneten Sensorposition essentiell. Häufig ist eine lagernahe Anbringung der Sensorik nicht möglich, weswegen eine geeignete Ersatzposition gefunden werden muss. In dieser Arbeit wird ein Ansatz zur Optimierung der Sensorposition vorgestellt, der die Eigenmoden des überwachten Systems mit einbezieht. Als Basis der Untersuchung werden in Trägerkonstruktionen integrierte Wälzlager betrachtet. Es wird aufgezeigt, dass durch die gezielte Positionierung der Sensorik in Bereichen mit hohen Eigenschwingungsamplituden die Signalqualität verbessert werden kann.

show abstract

Methode zur Erkennung des Einflusses von äußeren Schwingungsanregungen bei der Wälzlagerzustandsüberwachung

Cited by 6 publications

References 0 publications

Comparison of envelope demodulation methods in the analysis of rolling bearing damage

Comparison of envelope demodulation methods in the analysis of rolling bearing damage

Enhanced damage classification accuracy on a transmission by extending existing datasets with generative adversarial networks

Optimierung der Sensorpositionierung bei schwingungsbasierter Wälzlagerzustandsüberwachung unter Einbezug von Systemeigenmoden

Contact Info

Product

Resources

About