Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings
The number of rotors running in active magnetic bearings (AMBs) has increased over the last few years. These systems offer a great variety of advantages compared to conventional systems. The aim of this article is to use the AMBs together with a developed built-in software for identification, fault...
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| Format: | Article |
| Language: | English |
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Wiley
2004-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/S1023621X04000193 |
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| author | Rainer Nordmann Martin Aenis |
| author_facet | Rainer Nordmann Martin Aenis |
| author_sort | Rainer Nordmann |
| collection | DOAJ |
| description | The number of rotors running in active magnetic bearings (AMBs) has increased over the last few years. These systems offer a great variety of advantages compared to conventional systems. The aim of this article is to use the AMBs together with a developed built-in software for identification, fault detection, and diagnosis in a centrifugal pump. A single-stage pump representing the turbomachines is investigated.
During full operation of the pump, the AMBs are used as actuators to generate defined motions respectively forces as well as very precise sensor elements for the contactless
measurement of the responding displacements and forces. In the linear case, meaning small motions around an operating point, it is possible to derive compliance frequency
response functions from the acquired data. Based on these functions, a model-based fault detection and diagnosis is developed which facilitates the detection of faults
compared to state-of-the-art diagnostic tools which are only based on the measurement of the systems outputs, i.e., displacements. In this article, the different steps of the model-based diagnosis, which are modeling, generation of significant features, respectively symptoms, fault detection, and the diagnosis procedure itself are presented and in particular, it is shown how an exemplary fault is detected and identified. |
| format | Article |
| id | doaj-art-e7aef06818de475e8d8d5ec85f88e5b6 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-e7aef06818de475e8d8d5ec85f88e5b62025-02-03T01:00:48ZengWileyInternational Journal of Rotating Machinery1023-621X2004-01-0110318319110.1155/S1023621X04000193Fault Diagnosis in a Centrifugal Pump Using Active Magnetic BearingsRainer Nordmann0Martin Aenis1Mechatronics & Machine Acoustics, Darmstadt University of Technology, Darmstadt, GermanyMechatronics & Machine Acoustics, Darmstadt University of Technology, Darmstadt, GermanyThe number of rotors running in active magnetic bearings (AMBs) has increased over the last few years. These systems offer a great variety of advantages compared to conventional systems. The aim of this article is to use the AMBs together with a developed built-in software for identification, fault detection, and diagnosis in a centrifugal pump. A single-stage pump representing the turbomachines is investigated. During full operation of the pump, the AMBs are used as actuators to generate defined motions respectively forces as well as very precise sensor elements for the contactless measurement of the responding displacements and forces. In the linear case, meaning small motions around an operating point, it is possible to derive compliance frequency response functions from the acquired data. Based on these functions, a model-based fault detection and diagnosis is developed which facilitates the detection of faults compared to state-of-the-art diagnostic tools which are only based on the measurement of the systems outputs, i.e., displacements. In this article, the different steps of the model-based diagnosis, which are modeling, generation of significant features, respectively symptoms, fault detection, and the diagnosis procedure itself are presented and in particular, it is shown how an exemplary fault is detected and identified.http://dx.doi.org/10.1155/S1023621X04000193 |
| spellingShingle | Rainer Nordmann Martin Aenis Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings International Journal of Rotating Machinery |
| title | Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings |
| title_full | Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings |
| title_fullStr | Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings |
| title_full_unstemmed | Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings |
| title_short | Fault Diagnosis in a Centrifugal Pump Using Active Magnetic Bearings |
| title_sort | fault diagnosis in a centrifugal pump using active magnetic bearings |
| url | http://dx.doi.org/10.1155/S1023621X04000193 |
| work_keys_str_mv | AT rainernordmann faultdiagnosisinacentrifugalpumpusingactivemagneticbearings AT martinaenis faultdiagnosisinacentrifugalpumpusingactivemagneticbearings |