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

PASSIVE DAMPING OF SPACECRAFT SANDWICH PANELS

Romberg, O. und Tausche, M. und Pereira, C. und Panning, L. (2007) PASSIVE DAMPING OF SPACECRAFT SANDWICH PANELS. 10th European Confernce on Spacecraft Structures, Materials & Mechanical Testing, 10 - 13. September 2007, Berlin, 10.-13. September 2007, Berlin, Deutschland. (nicht veröffentlicht)

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
222kB

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)
Zusätzliche Informationen:CEAS 2007
Titel:PASSIVE DAMPING OF SPACECRAFT SANDWICH PANELS
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Romberg, O.Oliver.Romberg@dlr.de
Tausche, M.OHB-System AG
Pereira, C.RUAG Aerospace
Panning, L.Institut für Dynamik und Schwingungen
Datum:10 September 2007
Status:nicht veröffentlicht
Stichwörter:PASSIVE DAMPING OF SPACECRAFT SANDWICH PANELS
Veranstaltungstitel:10th European Confernce on Spacecraft Structures, Materials & Mechanical Testing, 10 - 13. September 2007, Berlin
Veranstaltungsort:Berlin, Deutschland
Veranstaltungsart:Konferenz
Veranstaltungsdatum:10.-13. September 2007
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W RP - Raumtransport
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):W - Antriebsystemtechnik - Antriebskonzepte (alt)
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme
Hinterlegt von: Nicola Behrens
Hinterlegt am:02 Dez 2009 11:45
Letzte Änderung:12 Dez 2013 20:42

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.