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Design, Test and Comparison of mechanical support principles to increase the robustness of deployable thin shell CFRP Booms of the deorbiting device ADEO

Zander, Martin E. und Kottke, Gerrit und Meyer, Sebastian und Hühne, Christian und Sinapius, Michael (2017) Design, Test and Comparison of mechanical support principles to increase the robustness of deployable thin shell CFRP Booms of the deorbiting device ADEO. In: 68th International Astronautical Congress (IAC) - Proceedings. 68th International Astronautical Congress (IAC), 2017-09-25 - 2017-09-29, Adelaide, Australia.

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Kurzfassung

In the industry led ESA project ADEO, a truncated pyramid shaped configuration for a drag augmentation device, is accomplished using DLR´s thin shell, rollable CFRP booms combined with four sail segments as a so called drag sail. Realizing a boom root deployment enables the boom tip to be pushed out of the housing and to deploy the sails. Due to this principle a transitional zone forms from the flattened to the fully deployed boom cross section. Thus reducing the second moment of area and therefore local stiffness of the boom, the transitional zone needs to be mechanically supported. Realizing this with a boom-support-guide device, this supportive structure fulfills a secondary function of guiding the deploying boom from the boom hub into the destined direction away from the spacecraft. However, for a successful operation the boom system needs to provide certain stiffness, buckling load capacity and robustness. In this paper the influence of the mechanical support & guiding device on the buckling behavior and stiffness of a boom during deployment and in deployed configuration is studied. To do so the mechanical characteristics of the initial and for two alternative designs of the boom guide & support devices are investigated and compared. Experimental data is acquired by combined mechanical boom bending and compression tests in a vertical test stand with booms mounted onto a realistic deployment unit. By simulating occurring sail and deployment loads with a certain spectrum of angles of attack and according boom lengths, values for boom buckling, collapse and boom tip deflections are acquired and analyzed in typical load-deflection curves. Finally the acquired experimental data and characteristics of the different designs are compared and discussed.

elib-URL des Eintrags:https://elib.dlr.de/114505/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Design, Test and Comparison of mechanical support principles to increase the robustness of deployable thin shell CFRP Booms of the deorbiting device ADEO
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Zander, Martin E.martin.zander (at) dlr.dehttps://orcid.org/0000-0001-5972-2938
Kottke, Gerritgerrit.kottke (at) dlr.de
Meyer, Sebastiansebastian.meyer (at) dlr.de
Hühne, Christianchristian.huehne (at) dlr.dehttps://orcid.org/0000-0002-2218-1223
Sinapius, Michaelm.sinapius (at) tu-braunschweig.de
Datum:September 2017
Erschienen in:68th International Astronautical Congress (IAC) - Proceedings
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Keywords: Gossamer structures, deployable, thin shell booms, testing, interface
Veranstaltungstitel:68th International Astronautical Congress (IAC)
Veranstaltungsort:Adelaide, Australia
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 September 2017
Veranstaltungsende:29 September 2017
Veranstalter :International Astronautical Federation (IAF)
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):R - keine Zuordnung
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Hinterlegt von: Zander, Martin E.
Hinterlegt am:15 Jan 2018 12:21
Letzte Änderung:24 Apr 2024 20:18

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