A graphical environment for nonlinear system modelling and analysis

Author

Barker, H.A. ; Zhuang, M.

Author_Institution

Univ. of Wales, Swansea, UK

Volume

2

fYear

1996

fDate

2-5 Sept. 1996

Firstpage

1326

Abstract

The paper describes a software environment that has been developed to allow the computer algebra software Mathematica to be applied to the analysis of a class of block-oriented nonlinear dynamic systems. Nonlinear system models are constructed using the graphical facilities of the simulation software SIMULINK and linked to Mathematica by MATLAB and MathLink programs under the control of a graphical user interface. Procedures developed in Mathematica are used to obtain the multidimensional transfer functions that relate the system output to the system input. These are then used to determine the time responses and the harmonic responses of the system. The method is illustrated for a feedback control system with a saturation characteristic in the forward path.

Keywords

computer graphics; digital simulation; graphical user interfaces; nonlinear dynamical systems; nonlinear systems; transfer functions; MATLAB; MathLink; Mathematica; SIMULINK; block-oriented nonlinear dynamic systems; computer algebra software; feedback control system; forward path; graphical environment; graphical user interface; harmonic responses; multidimensional transfer functions; nonlinear system analysis; nonlinear system modelling; saturation characteristic; software environment; time responses;

fLanguage

English

Publisher

iet

Conference_Titel

Control '96, UKACC International Conference on (Conf. Publ. No. 427)

ISSN

0537-9989

Print_ISBN

0-85296-668-7

Type

conf

DOI

10.1049/cp:19960745

Filename

656239