Gundlach, Janto und Govers, Yves (2019) Experimental modal analysis of aeroelastic tailored rotor blades in different boundary conditions. Journal of Physics: Conference Series, 1356 (012023). Institute of Physics (IOP) Publishing. doi: 10.1088/1742-6596/1356/1/012023. ISSN 1742-6588.
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Offizielle URL: https://iopscience.iop.org/article/10.1088/1742-6596/1356/1/012023
Kurzfassung
In the present study results of a modal test campaign involving four identical rotor blades of 20 m length with geometric bend-twist coupling are reported. Design, realisation, and post-processing of the experiments have been carried out under careful consideration of a pre-existing FE shell model. Modal data is obtained at two different stages of the manufacturing process and for one blade in two separate boundary conditions, i.e. free-free in elastic suspensions and clamped to a test rig. Due to the high sensor density in both configurations, the identified normal modes do not only include coupled eigenforms but also mode shapes illustrating cross-sectional vibrations; the latter attributed to the deflection of the blade shells. The acquired dataset is found to be well-suited for the validation of the numerical model and representsa reliable basis for updating.
elib-URL des Eintrags: | https://elib.dlr.de/134023/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | Experimental modal analysis of aeroelastic tailored rotor blades in different boundary conditions | ||||||||||||
Autoren: |
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Datum: | 24 Oktober 2019 | ||||||||||||
Erschienen in: | Journal of Physics: Conference Series | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Ja | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Band: | 1356 | ||||||||||||
DOI: | 10.1088/1742-6596/1356/1/012023 | ||||||||||||
Verlag: | Institute of Physics (IOP) Publishing | ||||||||||||
ISSN: | 1742-6588 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Experimental modal analysis, rotor blades, bend-twist coupling | ||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||
HGF - Programm: | Erneuerbare Energie | ||||||||||||
HGF - Programmthema: | Windenergie | ||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||
DLR - Forschungsgebiet: | E SW - Solar- und Windenergie | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Windenergie (alt) | ||||||||||||
Standort: | Göttingen | ||||||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Strukturdynamik und Systemidentifikation | ||||||||||||
Hinterlegt von: | Gundlach, Janto | ||||||||||||
Hinterlegt am: | 24 Feb 2020 08:42 | ||||||||||||
Letzte Änderung: | 14 Dez 2023 11:36 |
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