In the present paper, a flexible and parsimonious model of the vibrations of nonlinear mechanical systems is introduced in the form of state-space equations. It is shown that the nonlinear model terms can be formed using a limited number of output measurements. A twostep identification procedure is derived for this grey-box model, integrating nonlinear subspace initialisation and maximum likeli...

This study deals with the development of an accurate, efficient and robust method for numerical solution interaction compressible flow nonlinear dynamic elasticity. problem requires reliable in time-dependent domains deformations elastic bodies formed by several materials complicated geometry depending on time. In this paper, fluid–structure (FSI) is solved numerically space-time discontinuous ...