Becker-Dombrowsky, Florian Michael ; Schink, Johanna ; Frischmuth, Julian ; Kirchner, Eckhard (2024)
Investigation of the electrical impedance signal behavior in rolling element bearings as a new approach for damage detection.
In: Machines, 12 (7)
doi: 10.3390/machines12070487
Article, Bibliographie
Abstract
The opportunities of impedance-based condition monitoring for rolling bearings have been shown earlier by the authors: Changes in the impedance signal and the derived features enable the detection of pitting damages. Localizing and measuring the pitting length in the raceway direction is possible. Furthermore, the changes in features behavior are physically explainable. These investigations were focused on a single bearing type and only one load condition. Different bearing types and load angles were not considered yet. Thus, the impedance signals and their features of different bearing types under different load angles are investigated and compared. The signals are generated in fatigue tests on a rolling bearing test rig with conventional integrated vibration analysis based on structural borne sound. The rolling bearing impedance is gauged using an alternating current measurement bridge. Significant changes in the vibration signals mark the end of the fatigue tests. Therefore, comparing the response time of the impedance can be compared to the vibration signal response time. It can be shown that the rolling bearing impedance is an instrument for condition monitoring, independently from the bearing type. In case of pure radial loads, explicit changes in the impedance signal are detectable, which indicate a pitting damage. Under combined loads, the signal changes are detectable as well, but not as significant as under radial load. Damage-indicating signal changes occur later compared to pure radial loads, but nevertheless enable an early detection. Therefore, the rolling bearing impedance is an instrument for pitting damage detection, independently from bearing type and load angle.
| Item Type: | Article |
|---|---|
| Erschienen: | 2024 |
| Creators: | Becker-Dombrowsky, Florian Michael ; Schink, Johanna ; Frischmuth, Julian ; Kirchner, Eckhard |
| Type of entry: | Bibliographie |
| Title: | Investigation of the electrical impedance signal behavior in rolling element bearings as a new approach for damage detection |
| Language: | English |
| Date: | 19 July 2024 |
| Publisher: | MDPI |
| Journal or Publication Title: | Machines |
| Volume of the journal: | 12 |
| Issue Number: | 7 |
| DOI: | 10.3390/machines12070487 |
| Abstract: | The opportunities of impedance-based condition monitoring for rolling bearings have been shown earlier by the authors: Changes in the impedance signal and the derived features enable the detection of pitting damages. Localizing and measuring the pitting length in the raceway direction is possible. Furthermore, the changes in features behavior are physically explainable. These investigations were focused on a single bearing type and only one load condition. Different bearing types and load angles were not considered yet. Thus, the impedance signals and their features of different bearing types under different load angles are investigated and compared. The signals are generated in fatigue tests on a rolling bearing test rig with conventional integrated vibration analysis based on structural borne sound. The rolling bearing impedance is gauged using an alternating current measurement bridge. Significant changes in the vibration signals mark the end of the fatigue tests. Therefore, comparing the response time of the impedance can be compared to the vibration signal response time. It can be shown that the rolling bearing impedance is an instrument for condition monitoring, independently from the bearing type. In case of pure radial loads, explicit changes in the impedance signal are detectable, which indicate a pitting damage. Under combined loads, the signal changes are detectable as well, but not as significant as under radial load. Damage-indicating signal changes occur later compared to pure radial loads, but nevertheless enable an early detection. Therefore, the rolling bearing impedance is an instrument for pitting damage detection, independently from bearing type and load angle. |
| Uncontrolled Keywords: | rolling element bearing, impedance-based condition monitoring, feature engineering, impedance measurement, sensory utilizable machine elements |
| Identification Number: | Artikel-ID: 487 |
| Divisions: | 16 Department of Mechanical Engineering 16 Department of Mechanical Engineering > Institute for Product Development and Machine Elements (pmd) |
| Date Deposited: | 22 Jul 2024 05:08 |
| Last Modified: | 23 Jul 2024 06:50 |
| PPN: | 520080955 |
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