In addition to time-domain simulation methods, engineers from different application fields require further types of analysis to be performed on their systems. In particular results from frequency domain analysis play an important role - this includes the calculation of natural frequencies and vibration modes, but also the computation of transfer functions or the simulation of steady-state behaviour. If the system equations are formulated using the Modelica language, there is the potential to use one and the same model for time-domain as well as frequency-domain computations. In this paper it is shown how the different methods can be applied to a Modelica model, what kind of prerequisites and adjustments are required in order to perform the different types of analysis and how these methods can be seamlessly integrated into a Modelica simulation environment.
Frequency-domain analysis methods for Modelica models
Frequenzbereichs-Analyse mit Modelica-Modellen
2008
9 Seiten, 14 Bilder, 11 Quellen
Conference paper
English
Antriebsstrangkomponente , Arbeitspunkt , Eigenschwingung , erzwungene Schwingung , Frequenzbereichsanalyse , Frequenzspektrum , Programmiersprache , Resonanzfrequenz , Schwingungsanregung , Schwingungsdämpfung , Schwingungsform , Schwingungsfrequenz , Schwingungsverhalten , Simulationsmodell , Simulationsmodellbildung , Simulations-Software , Software-Werkzeug , Spektralanalyse , Spezifikationssprache , stationärer Zustand , Systembeschreibung , Übertragungsfunktion , Verbrennungsmotor
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