Uma nova abordagem para representações e identificações de classes de sistemas dinâmicos não-lineares

Abstract

In the last few years, the growth of the academic production about non-linear dynamic systems was noticed. Although the researches evolved, there are still topics that deserve a close analysis. One of them includes the study of mathematical models which represents many non-linear systems and will be the focus of this study. The purpose is to propose a new representation for non-linear dynamics system classes. It will combine models of interconnected blocks related concepts and base function. The parameters estimation for this model is done through frequency response techniques, based on harmonic balance concepts. To show and test the proposed model, systems with variable parameterization related to input signal amplitude will be utilized with numeric examples. In this work, it will be also presented concepts related to the modeling and linear and non-linear dynamic systems identification and parameters estimation.