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On the choice of boundary conditions for mode shapes in flexible multibody systems

Heckmann, Andreas (2010) On the choice of boundary conditions for mode shapes in flexible multibody systems. Multibody System Dynamics (23). Springer. DOI: 10.1007/s11044-009-9177-z. ISSN 1384-5640 (Print) 1573-272X (Online).

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Kurzfassung

The modal representation of the deformation field is a widespread and efficient approach in the analysis of flexible multibody systems. However, it requires a pre-processing in advance to the actual multibody survey that includes the imposition of boundary conditions for the evaluation of the mode functions as an essential user input. Quite often the appropriateness of these boundary conditions is a point of discussion. Therefore the present paper reviews the theoretical background and the implications of this task. Then, a consistent and comprehensive proposal is made how these boundary conditions may be chosen. The suggestion is justified by theoretical considerations and compared to alternative approaches from the literature in a simulation study with three representative examples. It may be concluded that several approaches lead to reasonable results for a sufficient number of mode functions. However, the proposed approach turned out to be the most efficient one and provides a consistent framework.

Dokumentart:Zeitschriftenbeitrag
Titel:On the choice of boundary conditions for mode shapes in flexible multibody systems
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Heckmann, Andreasandreas.heckmann@dlr.de
Datum:November 2010
Erschienen in:Multibody System Dynamics
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI : 10.1007/s11044-009-9177-z
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Schiehlen, WernerNICHT SPEZIFIZIERT
Ambrosio, Jorge A.C.NICHT SPEZIFIZIERT
Verlag:Springer
ISSN: 1384-5640 (Print) 1573-272X (Online)
Status:veröffentlicht
Stichwörter:Flexible multibody systems Mode shapes Boundary conditions Ritz approach
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Next Generation Train (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Robotik und Mechatronik > Systemdynamik und Regelungstechnik (war Entwurfsorientierte Regelungstechnik)
Hinterlegt von: Dr.-Ing. Andreas Heckmann
Hinterlegt am:19 Nov 2009 10:24
Letzte Änderung:26 Feb 2013 15:02

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