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A trade-off study on the mechanical support structure of the MASCOT-2 small body lander package

Lange, Michael und Hühne, Christian und Lange, Caroline und Mierheim, Olaf (2017) A trade-off study on the mechanical support structure of the MASCOT-2 small body lander package. IAC 2017, 2017-09-25 - 2017-09-29, Adelaide, Australien.

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Kurzfassung

The Mobile Asteroid surface SCOuT (MASCOT) is a 11 kg small body lander package developed under DLR lead for the Japanese space probe Hayabusa2. Based on MASCOT a modified MASCOT-2 lander package was studied for the AIM (Asteroid Impact Mission) mission study. The objective of the study was to develop a lander package, which maximizes heritage and reuse from the MASCOT predecessor. Thus the landing module’s framework structure retained the MASCOT design variant, being up-scaled by approx. 20% (MASCOT-2: 330mm x 300mm x 210mm, 13 kg). In contrast, the interface structure called Mechanical and Electrical Support Structure (MESS) experienced a more significant re-design, due to the need of interface simplification and the peculiarities of the lander deployment for AIM mission and the Didymos system. This paper introduces three possible design variants for the MESS, which are later narrowed down to two and presented in greater detail: a CFRP-honeycomb sandwich plate with additional unidirectional stiffening plies and an X-shaped solid CFRP hat beam structure. Both variants are much simplified compared to the MASCOT support structure, but retain the overall mounting variant. This conceptual discussion is followed by a detailed structural analysis of both mechanical support structures. Provided by a set of mechanical loads and stiffness requirements, the sandwich and beam interface structures are separately simulated in a finite element model, consisting of shell and beam elements, respectively. The attached landing module is modelled with both, shell and beam elements, allowing a coupled structural analysis of the system. By varying geometrical and material parameters in the structural MESS models, a trade-off between the resulting minimal masses, the stiffness and the strength requirements is performed. Specifically considering also development risks it is concluded that the sandwich design variant shows an overall better performance.

elib-URL des Eintrags:https://elib.dlr.de/114113/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:A trade-off study on the mechanical support structure of the MASCOT-2 small body lander package
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Lange, MichaelM.Lange (at) dlr.dehttps://orcid.org/0000-0003-0095-3605NICHT SPEZIFIZIERT
Hühne, ChristianChristian.Huehne (at) dlr.dehttps://orcid.org/0000-0002-2218-1223NICHT SPEZIFIZIERT
Lange, CarolineCaroline.Lange (at) dlr.dehttps://orcid.org/0000-0002-1709-3667NICHT SPEZIFIZIERT
Mierheim, OlafOlaf.Mierheim (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:September 2017
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:MASCOT, AIM, interface structure, CFRP, finite element simulation
Veranstaltungstitel:IAC 2017
Veranstaltungsort:Adelaide, Australien
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 September 2017
Veranstaltungsende:29 September 2017
Veranstalter :IAF
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):R - Projekt Mascot (Bus)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Funktionsleichtbau
Institut für Raumfahrtsysteme > Land und Explorationstechnologie
Hinterlegt von: Lange, Michael
Hinterlegt am:17 Okt 2017 11:44
Letzte Änderung:24 Apr 2024 20:18

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