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Metro450 Members Publications

Non parametric identification of asymmetric non linear vibration systems with the hilbert transform

17 February, 2013

Author: Michael Feldman

Source: Journal of Sound and Vibration (2012), 331, 3386-3396

Abstract:The objective of the paper is presenting a simple and more accurate technique for precise identification of nonlinear elastic force functions acting in asymmetric vibration systems. The identification procedure based on the Hilbert transform is a nonpara-metric one; it does not require a priori information about the system structure or its parameters. The examples of the identification of asymmetric classic vibration non-linear models – the Helmholtz and the double-well Duffing oscillators – are investi-gated.