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M. Lehmann, G. Stoll, C. Ranisch , A. Büter , D. Stelzl, P. Starke, A. Pfleiderer, T. Dickhut, R. Schneider, S. Heckrodt
The BMWi research project Infusion 4.0 of Fraunhofer LBF and MT Aerospace ranked 3rd in the 2017 Innospace Masters Award for the DLR Challenge. The goal of the project is the development of a digital flow front detection of a large scale composite part like a booster casing for space applications by fiber optic sensors. The parts are manufactured by vacuum infusion. A dry preform in a vacuum bag is infiltrated by resin. Each sensor fiber contains several of the more than 60 fiber optic sensors. The flow front is the line where the resin gets in contact first with the dry fibers. The process monitoring needs the signals to be transmitted from the rotating part in the oven to a computer outside. Here a digital representation of the sensor location on the part shows when the flow front reaches the sensor. Up to now, no such transparent information is available in the manufacturing process of such thick-walled parts and enhances the overall risk of vacuum infusion processes compared to other options. The new technology may enable a more automatic control of the manufacturing process in the future in the sense of Industry 4.0 and integrates sensors available for Structural Health Monitoring (SHM) in the earliest phase of the life cycle for an additional economic benefit.
Deutscher Luft- und Raumfahrtkongress 2019, Darmstadt
Verlag, Ort:
Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2020
Conference Paper
21,0 x 29,7 cm, 11 Seiten
Stichworte zum Inhalt:
vacuum Infusion, composite, fiber optic sensor, flow front detection, Process Monitoring, Industry 4.0, digital twin
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Lehmann, M.; Stoll, G.; et al. (2020): Infusion 4.0 - Flow Front Detection in Composite Parts with Fiber Optic Sensors. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/490155. urn:nbn:de:101:1-2020062412262067399328.
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