A Closure Procedure for Random Vibration Parametric Resonances

Autor: A. Chrzeszczyk, L. Stettner, Roman V. Bobryk
Rok vydání: 2005
Předmět:
Zdroj: Journal of Vibration and Control. 11:215-223
ISSN: 1741-2986
1077-5463
DOI: 10.1177/1077546305049052
Popis: We investigate the mean-square stability for single-degree-of-freedom linear systems with random parametric excitation. The excitation is assumed to be of the form of a Gaussian stationary non-white process. We propose a new numerical approach to determine regions of parametric resonances based on a closure procedure for hierarchy of moment equations. Mean-square stability charts are obtained using the numerical analysis of eigenvalues for large-scale matrices. The results show three parametric resonances for narrow-band excitations.
Databáze: OpenAIRE