Dynamic Characterization Of Hydroelectric Turbine In Transient Using OBMA And Phase-Shift Analysis
| Autor: | Dollon, Quentin, Tahan, Antoine S., Antoni, Jérôme, Gagnon, Martin, Monette, Christine |
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| Přispěvatelé: | Sciencesconf.org, CCSD, Ecole de Technologie Supérieure [Montréal] (ETS), Département de Génie Mécanique, Laboratoire Vibrations Acoustique (LVA), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA), Institut de Recherche d'Hydro-Québec [Varennes] (IREQ), Andritz Hydro SAS, INSA-Lyon, Université de Lyon |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
[SPI]Engineering Sciences [physics] [SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph] [SPI] Engineering Sciences [physics] [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] [SPI.MECA.VIBR] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] [SPI.MECA] Engineering Sciences [physics]/Mechanics [physics.med-ph] [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing [SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing |
| Zdroj: | Surveillance, Vishno and AVE conferences Surveillance, Vishno and AVE conferences, INSA-Lyon, Université de Lyon, Jul 2019, Lyon, France |
| Popis: | International audience; The purpose of this paper is to investigate the possibility of estimating Francis hydroelectric turbine modal parameters in transient conditions by focusing on resonance regions generated by the interaction of a structural mode with a frequency-variant harmonic pressure pulsation. Especially when numerous modes are in the same bandwidth, this method separates them by exciting only matching mode shapes. To extract a specified harmonic from the signal, the resonance retrieval is done using Order Tracking method. A classical ambient modal identification algorithm is then used to feature the isolated mode. Furthermore, using the phase-shift between measured locations, modes can be localized and shape determined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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