Input/output characterization of highly nonlinear multivariable systems

被引：26
|
作者：
Nassirharand, A [1 ]
Karimi, H
机构：
[1] Farab Co, Tehran, Iran
[2] Khage Nassir Al Deen Toosi Univ Technol, Dept Mech Engn, Tehran, Iran
来源：
ADVANCES IN ENGINEERING SOFTWARE | 2002年 / 33卷 / 11-12期
关键词：
describing functions; pseudo-frequency response; Fourier integrals; robustness; amplitude dependent models;
D O I：
10.1016/S0965-9978(02)00046-7
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper presents a software in the MATLAB environment for input/output characterization of highly nonlinear multivariable systems. The, software is based on obtaining the sinusoidal-input describing function (SIDF) models of the nonlinear multivariable plant. The mathematical development of the input/output characterization approach is outlined, and the printout of the nucleus of the characterization software is given. The method and the associated software have no restriction on nonlinearity type, configuration, and arrangement, system order as well as the number of inputs and outputs; the only requirement is that system output(s) for sinusoidal input(s) must be obtainable or available by either simulation or experiments. The software has a variety of applications in such industries as robotics, aerospace, automotive, and chemical processes. The method and the associated software are demonstrated by solving a problem of the sort encountered in aerospace. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：825 / 830
页数：6
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