elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

OPTIMIZED VACUUM BAGGING FOR CFRP ROCKET BOOSTER CASES

Faber, Jan und Schmidt-Eisenlohr, Clemens (2018) OPTIMIZED VACUUM BAGGING FOR CFRP ROCKET BOOSTER CASES. 8th International Symposium on Composites Manufacturing for High Performance Composite Applications ISCM 2018, 2018-11-21 - 2018-11-22, Marknesse, Niederlande.

[img] PDF
2MB

Kurzfassung

State of the art vacuum bagging for vacuum infusion technologies still involves a high amount of manual process steps. More efficient production technologies could increase the economic attractiveness of vacuum infusion processes for large aerospace structures. In the context of a research project, the German Aerospace Center (DLR), Augsburg and MT Aerospace GmbH, Augsburg have developed design methods and application concepts for vacuum bagging auxiliary materials on a full-scale CFRP rocket booster case. With a diameter of 3.4 m manual application of auxiliary materials is challenging in terms of deposition accuracy, reproducibility and reachability. Facing these challenges, first, a design method has been developed to generate near net-shape auxiliary material packages of peel ply, perforated release film and flow media with reduced wrinkling. As joining technology continuous ultrasonic welding has been selected and validated based on the suitability for vacuum infusion and out-of-autoclave curing. Manual application tests were conducted with these packages on a full-scale booster case demonstrator. The results show, that a developable shape design of the packages for the doubly curved dome sections allows best results with regards to wrinkle minimization and the complexity of the handling procedure. Second, a concept study on the application of the outer vacuum bag, consisting of membrane and vacuum foil, is presented. Therefore, an optimized shape design of a VAP membrane combined with a new application concept has been developed and validated. In a final outlook, the results will be discussed focusing on intended low manufacturing rates of about 20 boosters per year.

elib-URL des Eintrags:https://elib.dlr.de/124485/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:OPTIMIZED VACUUM BAGGING FOR CFRP ROCKET BOOSTER CASES
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Faber, Janjan.faber (at) dlr.dehttps://orcid.org/0000-0002-6810-6982NICHT SPEZIFIZIERT
Schmidt-Eisenlohr, ClemensClemens.Schmidt-Eisenlohr (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2018
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:CFRP rocket booster case, vacuum bagging, ultrasonic welding, 3D shape design
Veranstaltungstitel:8th International Symposium on Composites Manufacturing for High Performance Composite Applications ISCM 2018
Veranstaltungsort:Marknesse, Niederlande
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:21 November 2018
Veranstaltungsende:22 November 2018
Veranstalter :NLR
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: Augsburg
Institute & Einrichtungen:Institut für Bauweisen und Strukturtechnologie > Automation und Produktionstechnologie
Hinterlegt von: Faber, Jan
Hinterlegt am:13 Dez 2018 12:06
Letzte Änderung:24 Apr 2024 20:28

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.