Reference : Nonlinear Dynamic Analysis of Aerospace Structures
Scientific congresses and symposiums : Unpublished conference
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/132016
Nonlinear Dynamic Analysis of Aerospace Structures
English
Kerschen, Gaëtan mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Noël, Jean-Philippe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Renson, Ludovic mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >]
Golinval, Jean-Claude mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
Oct-2012
No
No
International
LMS European Aerospace Conference 2012
du 4 octobre au 5 octobre 2012
LMS International
Toulouse
France
[en] Nonlinear dynamics ; Aerospace structures ; System identification ; Modal analysis
[en] Current practice in industry is to rely on linear finite element simulations. However, nonlinearity is a frequent occurrence in engineering structures. It is at the origin of rich and complex dynamical phenomena that cannot be observed in linear structures. Solving both the direct and inverse problems in nonlinear structural dynamics therefore warrants the development of appropriate methodologies.

The focus of the presentation will first be on the inverse problem. We will describe the different steps of the nonlinear system identification process and discuss the current capabilities of existing methods. The presentation will then address the direct problem during which the identified model is used for accurately predicting the structure’s dynamic characteristics. A rigorous nonlinear extension of modal analysis will be presented, and we will show that it represents a very useful framework for understanding nonlinear dynamical phenomena and supporting design decisions. Two real-life aerospace structures will be considered for illustrating the proposed developments.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/132016

There is no file associated with this reference.

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.