Solbes Ferri, Irene (2022) Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures. Masterarbeit, TU Delft.
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Offizielle URL: https://repository.tudelft.nl/islandora/object/uuid:a0bd1c6a-5cca-46ce-bd31-56673dac4024
Kurzfassung
The objective of this master project is to improve the current SHM techniques for global damage identification of beam-like composite structures. The studied damage diagnosis method is based on structural vibrations from which the modal parameters are obtained. The literature study provides an overview of the most common vibration-based damage identification methods. The modal curvature shape- and modal strain energy-based methods are selected due to their higher sensitivity to local damages. These methods are applied on an aero-elastically tailored composite wing. High-spatial-resolution modal shapes are extracted from the structure with a state-of-the-art fibre optic strain sensing technology based on Rayleigh back-scattering. Damages are simulated in the wing employing localized mass attachments. The achievable level of damage identification with this technique is found and characterized. The different vibration-based methods are compared and their potential is discussed. It is concluded that the used sensing technique is an excellent choice for global damage diagnosis in composite structures.
elib-URL des Eintrags: | https://elib.dlr.de/188355/ | ||||||||
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Dokumentart: | Hochschulschrift (Masterarbeit) | ||||||||
Titel: | Dynamic continuous fiber optical strain sensing for damage diagnosis on beam-like composite structures | ||||||||
Autoren: |
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Datum: | Februar 2022 | ||||||||
Referierte Publikation: | Nein | ||||||||
Open Access: | Nein | ||||||||
Seitenanzahl: | 97 | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | Dynamics, fibre optic sensors, Experimental modal analysis, Structural Health Monitoring (SHM), Damage Identification, Composite structures, beam-like structures, Strain sensor | ||||||||
Institution: | TU Delft | ||||||||
Abteilung: | Aerospace Engineering, Structures and Materials | ||||||||
HGF - Forschungsbereich: | Energie | ||||||||
HGF - Programm: | Materialien und Technologien für die Energiewende | ||||||||
HGF - Programmthema: | Photovoltaik und Windenergie | ||||||||
DLR - Schwerpunkt: | Energie | ||||||||
DLR - Forschungsgebiet: | E SW - Solar- und Windenergie | ||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Windenergie | ||||||||
Standort: | Göttingen | ||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Strukturdynamik und Systemidentifikation | ||||||||
Hinterlegt von: | Knebusch, Johannes | ||||||||
Hinterlegt am: | 19 Sep 2022 11:49 | ||||||||
Letzte Änderung: | 19 Sep 2022 11:49 |
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