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Passiv damping on spacecraft sandwich panels

Romberg, Oliver und Tausche, M. und Pereira, C. und Panning, L. (2007) Passiv damping on spacecraft sandwich panels. 10th European Conference on Spacecraft Structures, Materials & Mechanical Testing, 10. - 13. Sept., Berlin, Germany.

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Kurzfassung

For reusable and expendable launch vehicles as well as for other spacecraft structural vibration loads are safety critical design drivers impacting mass and lifetime. Here, the improvement of reliability and safety, the reduction of mass, the extension of service life, as well as the reduction of cost for manufacturing are desired. Spacecraft structural design in general is a compromise between lightweight design and robustness with regard to dynamic loads. The structural stresses and strains due to displacements caused by dynamic loads can be reduced by mechanical damping based on passive or active measures. Passive damping systems can be relatively simple and yet are capable of suppressing a wide range of mechanical vibrations. Concepts are low priced in development, manufacturing and application as well as maintenancefree. Compared to active damping measures passive elements do not require electronics, control algorithms, power, actuators, sensors as well as complex maintenance. Moreover, a reliable application of active dampers for higher temperatures and short response times (e. g. re-entry environment) is questionable. The physical effect of passive dampers is based on the dissipation of load induced energy. Recent activities performed by OHB have shown the function of a passive friction-damping device for a vertical tail model of the German X-vehicle PHÖNIX but also for general sandwich structures. The present paper shows brand new results from a corresponding ESA-funded activity where passive damping elements are placed between the face sheets of large spacecraft relevant composite sandwich panels to demonstrate dynamic load reduction in vibration experiments on a shaker. Several passive damping measures are investigated and compared.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Passiv damping on spacecraft sandwich panels
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID
Romberg, OliverDeutsches Zentrum für Luft- und RaumfahrtNICHT SPEZIFIZIERT
Tausche, M.OHB-Systems AGNICHT SPEZIFIZIERT
Pereira, C.RUAG AerospaceNICHT SPEZIFIZIERT
Panning, L.Institut für Dynamik & SchwingungenNICHT SPEZIFIZIERT
Datum:September 2007
In Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Spacecraft structural design, dynamic loads, mechanical damping, algorithms, power, actuators, sensors as well as complex maintenance
Veranstaltungstitel:10th European Conference on Spacecraft Structures, Materials & Mechanical Testing
Veranstaltungsort:Berlin, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:10. - 13. Sept.
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W - keine Zuordnung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):W - keine Zuordnung (alt)
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme > Systemanalyse Raumsegmente
Hinterlegt von: Behrens, Nicola
Hinterlegt am:04 Jan 2010 15:24
Letzte Änderung:05 Okt 2016 16:09

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