Title :
The method of energy- and phase-frequency characteristics EPFC. A method to describe non-linearity in automated modeling
Author :
Lemmen, Ralf ; Vier, Elmar
Author_Institution :
Brueninghaus Hydromatik GmbH, Horb, Germany
Abstract :
The method of energy- and phase-frequency characteristics (EPFC) has been developed to describe the behaviour of especially nonlinear systems. It is, so far, applied to the process of automated modeling within a software tool for hydraulics; the method itself, however, represents a system-theoretical approach which is not confined to a special application. EPFC establishes a consistent extension of frequency response (of linear systems) towards static and dynamic nonlinear systems following the graphical representation of the Bode diagram. This article describes the EPFC method and discusses present and future ways of utilization
Keywords :
Bode diagrams; digital simulation; frequency response; hydraulic systems; mechanical engineering; mechanical engineering computing; modelling; nonlinear systems; Bode diagram; EPFC; automated modeling; energy-frequency characteristics; frequency response; graphical representation; hydraulics; nonlinear systems; phase-frequency characteristics; software tool; Automatic control; Control systems; Energy measurement; Frequency response; Linear systems; Mechanical engineering; Mechanical variables measurement; Nonlinear control systems; Phase measurement; Signal processing;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.574344
