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

Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems

Mosterman, P. J. und Biswas, G. (2000) Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems. In: Lecture Notes in Computer Science, 1790. Springer Verlag, Berlin. ISBN 3-540-67259-1.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
151kB

Kurzfassung

In many cases, complex system behaviors are naturally modeled as nonlinear differential equations. However, these equations are often hard to analyze because of ``stiffness'' in their numerical behavior and the difficulty in generating and interpreting higher order phenomena. Engineers often reduce model complexity by transforming the nonlinear systems to piecewise linear models about operating points. Each operating point corresponds to a mode of operation, and a discrete event switching structure is added to implement the mode transitions during behavior generation. This paper presents a methodology for systematically deriving mixed continuous and discrete, i.e., hybrid models from a nonlinear ODE system model. A complete switching specification and state vector update function is derived by combining piecewise linearization with singular perturbation approaches and transient analysis. The model derivation procedure is then cast into the phase space transition ontology that we developed in earlier work. This provides a systematic mechanism for characterizing discrete transition models that result from model simplification techniques. Overall, this is a first step towards automated model reduction and simplification of complex high order nonlinear systems.

Dokumentart:Beitrag im Sammelband
Zusätzliche Informationen:LIDO-Berichtsjahr=2000,
Titel:Towards Procedures for Systematically Deriving Hybrid Models of Complex Systems
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Mosterman, P. J.DRL Institut für Robotik und Mechatronik
Biswas, G.Vanderbilt University, Nashville
Datum:2000
Referierte Publikation:Ja
Band:1790
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Lynch, N.NICHT SPEZIFIZIERT
Krogh, B.H.NICHT SPEZIFIZIERT
Verlag:Springer Verlag, Berlin
Name der Reihe:Lecture Notes in Computer Science
ISBN:3-540-67259-1
Status:veröffentlicht
Stichwörter:model reduction, hybrid sytems, picewise linearization, physical system modeling
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flexibles Flugzeug (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Robotik und Mechatronik
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:12 Dez 2013 20:01

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.