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SENSOR BASED ANALYSIS AND IDENTIFICATION OF LEAKAGES IN VACUUM BAGGING FOR HIGH PERFORMANCE COMPOSITE COMPONENTS

Haschenburger, Anja und Menke, Niklas (2018) SENSOR BASED ANALYSIS AND IDENTIFICATION OF LEAKAGES IN VACUUM BAGGING FOR HIGH PERFORMANCE COMPOSITE COMPONENTS. In: INTERNATIONAL SAMPE TECHNICAL CONFERENCE SERIES. SAMPE Europe, 2018-09-11 - 2018-09-13, Southampton.

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Kurzfassung

Leakage detection is an essential process step in the manufacturing of high performance composite components. During production, a composite layup is hermetically sealed against the environment by auxiliary materials creating a so-called vacuum bag. Faulty vacuum bags lead to complex repair work and can drastically impair the quality of the composite. A two-stage process for automated leakage detection was developed at the German Aerospace Center in Stade. Possible leakage locations are limited by a sensor system for subsequent in-depth examination by infrared thermography. It was proven that the existence of leakages in vacuum bags can be explicitly identified by volumetric flow meters. During evacuation of the vacuum bag the volumetric flow rate converges towards a notably elevated threshold value. The magnitude of threshold flow was directly correlated to the leakage area. For multiple vacuum lines, the volumetric flow rate caused by a leakage was observed to distribute in a regular pattern. Localization via trilateration showed promising results to identify leak-prone areas in the vacuum bag. These areas can be examined by infrared thermography to get the exact position of the leak. The implementation of this two-stage process is expected to reduce both process times and effort.

elib-URL des Eintrags:https://elib.dlr.de/121855/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:SENSOR BASED ANALYSIS AND IDENTIFICATION OF LEAKAGES IN VACUUM BAGGING FOR HIGH PERFORMANCE COMPOSITE COMPONENTS
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Haschenburger, AnjaAnja.Haschenburger (at) dlr.dehttps://orcid.org/0000-0001-9342-0220NICHT SPEZIFIZIERT
Menke, Niklasniklas.menke (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:13 September 2018
Erschienen in:INTERNATIONAL SAMPE TECHNICAL CONFERENCE SERIES
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Ja
Status:veröffentlicht
Stichwörter:Leakage, Leakage detection, flow measurement, flow meter, vacuum bagging, leakage localization
Veranstaltungstitel:SAMPE Europe
Veranstaltungsort:Southampton
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:11 September 2018
Veranstaltungsende:13 September 2018
Veranstalter :SAMPE
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen und Werkstoffe (alt)
Standort: Stade
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Verbundprozesstechnologien
Hinterlegt von: Haschenburger, Anja
Hinterlegt am:14 Dez 2018 11:52
Letzte Änderung:24 Apr 2024 20:25

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