Golinval, Jean-Claude[Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Ruzzene, M.[Politecnico di Torino > Dipartimento di Meccanica > > >]
Giorcelli, E.[Politecnico di Torino > Dipartimento di Meccanica > > >]
Second International Conference on Identification in Engineering Systems (IES’99)
du 29 au 31 mars 1999
University of Wales Swansea
[en] Nonlinear system identification ; Wavelet Transform ; Direct parameter estimation
[en] The identification of a single degree of freedom non-linear system is performed on experimental data using two different techniques : a method based on the Wavelet transform and a Direct Parameter estimation method. Both techniques are based on the analysis of the system free responses and result in the estimation of linear and non-linear physical parameters. The agreement between the two methods was found to be encouraging and opens to the possibility of extending them to the analysis of more complicated systems.