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Ahn, Joon H. und Hwang, Hyun J. und Chang, Sehoon und Jung, Sung N. und Kalow, Steffen und Keimer, Ralf (2021) X-ray computed tomography method for macroscopic structural property evaluation of active twist composite blades. Aerospace. Multidisciplinary Digital Publishing Institute (MDPI). ISSN 2226-4310. (eingereichter Beitrag)
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Kurzfassung
This paper describes an evaluation of the structural properties of the next-generation active twist blade using X-ray computed tomography (CT) combined with digital image processing. This non-destructive testing technique avoids the costly demolition of the blade structure. The CT scan covers the whole blade region, including the root, transition, and tip regions as well as the airfoil blade regions, in which there are spanwise variations in the interior structural layout due to the existence of heavy instrumentation. The three-dimensional digital image data are processed at selected radial stations, and finite element beam cross-section analyses are conducted to evaluate the structural properties of the blade at the macroscopic level. The fidelity of the digital blade model is first assessed by correlating the estimated blade mass with the measured data. A separate me- chanical measurement is then carried out to determine the representative elastic properties of the blade and to verify the predicted results. The agreement is found to be good to excellent for the mass, elastic axis, flap bending, and torsional rigidity. Finally, a sensitivity analysis is conducted to clarify the impact of modeling the sensor and actuator cables, nose weight, and manufacturing im- perfections on the structural properties of the blade.
| elib-URL des Eintrags: | https://elib.dlr.de/146414/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
| Titel: | X-ray computed tomography method for macroscopic structural property evaluation of active twist composite blades | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2021 | ||||||||||||||||||||||||||||
| Erschienen in: | Aerospace | ||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||||||
| Gold Open Access: | Ja | ||||||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
| Verlag: | Multidisciplinary Digital Publishing Institute (MDPI) | ||||||||||||||||||||||||||||
| ISSN: | 2226-4310 | ||||||||||||||||||||||||||||
| Status: | eingereichter Beitrag | ||||||||||||||||||||||||||||
| Stichwörter: | Active twist blade, CT scan, Digital reproduction, Structural property, Sensitivity analysis | ||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
| HGF - Programmthema: | keine Zuordnung | ||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L - keine Zuordnung | ||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - keine Zuordnung | ||||||||||||||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Faserverbundleichtbau und Adaptronik > Adaptronik | ||||||||||||||||||||||||||||
| Hinterlegt von: | Kalow, Steffen | ||||||||||||||||||||||||||||
| Hinterlegt am: | 13 Dez 2021 07:37 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 13 Dez 2021 07:37 |
Verfügbare Versionen dieses Eintrags
-
X-ray computed tomography method for macroscopic structural
3 property evaluation of active twist composite blades. (deposited 22 Nov 2021 08:16)
- X-ray computed tomography method for macroscopic structural property evaluation of active twist composite blades. (deposited 13 Dez 2021 07:37) [Gegenwärtig angezeigt]
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