Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Nonlinear control in an electromechanical transducer with chaotic behaviour

Texto completo
Autor(es):
Balthazar, Jose Manoel [1] ; Bassinello, Dailhane Grabowski [2] ; Tusset, Angelo Marcelo [3] ; Bueno, Atila Madureira [4] ; de Pontes Junior, Bento Rodrigues [5]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista UNESP, Rio Claro, SP - Brazil
[2] Inst Fed Educ Cienca & Tecnol Parana IFPR, Paranavai, PR - Brazil
[3] Univ Tecnol Fed Parana UTFPR, Ponta Grossa, PR - Brazil
[4] Univ Estadual Paulista UNESP, Sorocaba, SP - Brazil
[5] Univ Estadual Paulista UNESP, Bauru, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: MECCANICA; v. 49, n. 8, SI, p. 1859-1867, AUG 2014.
Citações Web of Science: 19
Resumo

The electromechanical transducer considered in this work is composed of a mechanical oscillator linked to an electronic circuit. Simulations results have determined that for some combination of parameters the electromechanical system is subject to chaotic motion with resonant transient behavior, and after the resonant transient the mechanical system (MS) synchronizes with the electrical system (ES). In order to improve the transient response, avoiding both the chaotic and resonant behaviors, a nonlinear control system is designed, a feedback control strategy is used to drive the system into the desired periodic orbit, and a nonlinear feedforward strategy is used to keep the system into the periodic orbit, obtained by the Fourier series. Two control techniques are used and compared, namely: the state dependent Ricatti equation and the optimal linear feedback control. Numerical simulations results are shown in order to compare the results, considering parametric uncertainties. Additionally, the energy transfer ``pumping{''} between the ES and the MS is also analysed. (AU)

Processo FAPESP: 13/04101-6 - Sincronismo de osciladores e suas aplicações em ciência da engenharia
Beneficiário:Atila Madureira Bueno
Linha de fomento: Auxílio à Pesquisa - Regular