Generation of Accurate Finite Element Models of Nonlinear Systems – Application to an Aeroplane-Like Structure |
| |
Authors: | Gaetan Kerschen Jean-Claude Golinval |
| |
Affiliation: | (1) Department of Materials, Mechanical and Aerospace Engineering, University of Liège, Chemin des Chevreuils 1 (B52), 4000 Liège, Belgium |
| |
Abstract: | Model updating and validation is currently a central issue in the fields of computational structural mechanics and dynamics. The vast majority of applications however concerns linear structures. On the other hand, updating nonlinear models is something the structural dynamicist prefers to avoid mainly because tools such as modal analysis are no longer available. The objective of the present study is to propose a two-step methodology for dealing with nonlinear systems. Its most appealing feature is that it decouples the estimation of the linear and nonlinear parameters. A numerical application consisting of an aeroplane-like structure is used to assess the efficiency of the procedure. |
| |
Keywords: | conditioned reverse path method finite element model updating and validation nonlinear systems system identification |
本文献已被 SpringerLink 等数据库收录! |