A dual criterion of equivalent linearization method for nonlinear systems subjected to random excitation

Autor: Nguyen Dong Anh, N. N. Linh, N.N. Hieu
Rok vydání: 2011
Předmět:
Zdroj: Acta Mechanica. 223:645-654
ISSN: 1619-6937
0001-5970
DOI: 10.1007/s00707-011-0582-z
Popis: A dual criterion of equivalent linearization method is suggested. The mean-square responses of Duffing, Van der Pol and Lutes-Sarkani oscillators subjected to random excitation are considered. The obtained results are compared with the numerical calculations of original systems and approximate solutions obtained by three different methods including the conventional linearization technique, energy method and regulation linearization method. The results show that in those nonlinear systems the accuracy of the mean-square response is significantly improved by the proposed criterion.
Databáze: OpenAIRE