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Kensche, C.W. (1992) Fatigue of GFRP in Wind Turbine Rotor Blades. DLR-Forschungsbericht. 92-17, 79 S.
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Kurzfassung
In the 20-years' life time of wind turbines, the rotor blades achieve more than 10 exponent 8 load cycles. However, for a reliable life time prediction high-cycle fatigue data were missed up to now. Within a CEC programme, therefore relevant investigations on both GI-Ep specimens and spar beams including the load attachment to the hub were carried out. The experiments enclosed sinusoidal one-step tests and the wind energy-specific load sequence WISPER. For the GI-Ep specimens a life time prediction was performed with the linear Miner rule on the basis of a constant amplitude life diagram designed by the fatigue data. Concerning the spar beams it was shown that they safely can withstand maximum strains of more than -0.6 per cent. Frequency response and damping measurements were carried out at certain stages during service life but could not discover an impending failure.
| Dokumentart: | Berichtsreihe (DLR-Forschungsbericht) | ||||||
|---|---|---|---|---|---|---|---|
| Zusätzliche Informationen: | LIDO-Berichtsjahr=1992, | ||||||
| Titel: | Fatigue of GFRP in Wind Turbine Rotor Blades | ||||||
| Autoren: |
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| Datum: | 1992 | ||||||
| In Open Access: | Nein | ||||||
| In SCOPUS: | Nein | ||||||
| In ISI Web of Science: | Nein | ||||||
| Seitenanzahl: | 79 | ||||||
| Status: | veröffentlicht | ||||||
| Stichwörter: | Wind Turbines, Rotor Blades, High-Cycle Fatigue, Coupon Specimens, Spar Beams | ||||||
| HGF - Forschungsbereich: | Energie | ||||||
| HGF - Programm: | Erneuerbare Energie | ||||||
| HGF - Programmthema: | E SF - Solarforschung (alt) | ||||||
| DLR - Schwerpunkt: | Energie | ||||||
| DLR - Forschungsgebiet: | E SF - Solarforschung | ||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||
| Standort: | Stuttgart | ||||||
| Institute & Einrichtungen: | Institut für Bauweisen- und Konstruktionsforschung | ||||||
| Hinterlegt von: | DLR-Beauftragter, elib | ||||||
| Hinterlegt am: | 02 Apr 2006 | ||||||
| Letzte Änderung: | 27 Apr 2009 11:04 |
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