Parameter estimation and structural model updating using modal methods in the presence of nonlinearity
Year: 2009
Type: conference-paper
Abstract: Design of engineering structures relies on• Numerical predictions modal analysis (FEM)• Dynamic testing experimental modal analysis (EMA)In the case of linear structures, the techniques available for EMA are mature e.g.• Eigensystem realization algorithm• Stochastic subspace identification• Polyreference least-squares complex exponentials frequency domain • etcAim of this presentation• To extend experimental modal analysis to a practical analogue using the nonlinear normal mode (NNM) theory.• Validate mathematical models of non-linear structures against experimental data.
Source: ORBi (University of Liège)
Author: Jean‐Claude Golinval
Institution: University of Liège
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W152930761