Jungblut, Jens ; Fischer, Christian ; Rinderknecht, Stephan (2022)
System identification of a gyroscopic rotor throughout rotor-model-free control using the frequency domain LMS.
In: IFAC-PapersOnLine, 55 (25)
doi: 10.1016/j.ifacol.2022.09.350
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A gyroscopic rotor is controlled and studied. A rotor-model-free control which is based on the transform domain least mean squares algorithm is implemented. An algorithm is proposed which compensates the delay of the transformation for quasi-periodic signals. Experiments show that this algorithm has a positive effect on the first resonance and that it is sufficient to compute the transformation only once per revolution. The rotor-model-free control is then used to excite the system during operation for its identification. A non-parametric model is estimated using two run-outs, one with and one without adaptive feedforward control. Transient phenomena occur after passing the first lightly damped resonance causing a distortion in the estimation. This is remedied by fitting a modal model to the estimation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Jungblut, Jens ; Fischer, Christian ; Rinderknecht, Stephan |
| Art des Eintrags: | Bibliographie |
| Titel: | System identification of a gyroscopic rotor throughout rotor-model-free control using the frequency domain LMS |
| Sprache: | Englisch |
| Publikationsjahr: | 30 August 2022 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | IFAC-PapersOnLine |
| Jahrgang/Volume einer Zeitschrift: | 55 |
| (Heft-)Nummer: | 25 |
| DOI: | 10.1016/j.ifacol.2022.09.350 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S240589632... |
| Kurzbeschreibung (Abstract): | A gyroscopic rotor is controlled and studied. A rotor-model-free control which is based on the transform domain least mean squares algorithm is implemented. An algorithm is proposed which compensates the delay of the transformation for quasi-periodic signals. Experiments show that this algorithm has a positive effect on the first resonance and that it is sufficient to compute the transformation only once per revolution. The rotor-model-free control is then used to excite the system during operation for its identification. A non-parametric model is estimated using two run-outs, one with and one without adaptive feedforward control. Transient phenomena occur after passing the first lightly damped resonance causing a distortion in the estimation. This is remedied by fitting a modal model to the estimation. |
| Freie Schlagworte: | Piezoelectric Bearing, Rotor Dynamics, System Identification |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Mechatronische Systeme im Maschinenbau (IMS) |
| Hinterlegungsdatum: | 13 Dez 2022 06:43 |
| Letzte Änderung: | 13 Dez 2022 09:39 |
| PPN: | 502525908 |
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