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Proceedings Paper

Fiber optic system for deflection and damage detection in morphing wing structures
Author(s): M. Scheerer; Z. Djinovic; M. Schüller
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Paper Abstract

Within the EC Clean Sky - Smart Fixed Wing Aircraft initiative concepts for actuating morphing wing structures are under development. In order for developing a complete integrated system including the actuation, the structure to be actuated and the closed loop control unit a hybrid deflection and damage monitoring system is required. The aim of the project "FOS3D" is to develop and validate a fiber optic sensing system based on low-coherence interferometry for simultaneous deflection and damage monitoring. The proposed system uses several distributed and multiplexed fiber optic Michelson interferometers to monitor the strain distribution over the actuated part. In addition the same sensor principle will be used to acquire and locate the acoustic emission signals originated from the onset and growth of defects like impact damages, cracks and delamination’s. Within this paper the authors present the concept, analyses and first experimental results of the mentioned system.

Paper Details

Date Published: 19 April 2013
PDF: 15 pages
Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 86922Q (19 April 2013); doi: 10.1117/12.2009256
Show Author Affiliations
M. Scheerer, Aerospace & Advanced Composites GmbH (Austria)
Z. Djinovic, Integrated Microsystems Austria GmbH (Austria)
M. Schüller, Fraunhofer-Institut für Elektronische Nanosysteme (Germany)

Published in SPIE Proceedings Vol. 8692:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013
Jerome Peter Lynch; Chung-Bang Yun; Kon-Well Wang, Editor(s)

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