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On the Approximated Solution of Non-Linear Systems Under Non Gaussian Excitations

by G. Falsone, Univ of Palermo, Palermo, Italy,
M. Vasta, Univ of Palermo, Palermo, Italy,



Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract:

The study of non-linear mechanical and structural systems under random excitations has become very important in the last years. When random excitations are Gaussian, many approaches can be applied in order to obtain the approximated probabilistic characterization of the reponse; The aim of this paper is to investigate the applicability of SL and CNC approaches in the case of non-linear systems under arbitrary external non Gaussian delta-correlated excitations; the choice of delta-correlated processes is due to the fact that, in the field of non Gaussian excitations, they play the same role of the Gaussian white noise for Gaussian excitations.

Subject Headings: Gaussian process | Excitation (physics) | Probability | Structural systems | Stochastic processes | Correlation | Structural analysis

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