Reference : A method for identification of non-linear multi-degree-of-freedom systems
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/9943
A method for identification of non-linear multi-degree-of-freedom systems
English
Dimitriadis, Grigorios mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Intéractions fluide structure et aérodynamique expérimentale >]
Cooper, Jonathan E [University of Manchester > School of Engineering > > >]
1998
Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering
Professional Engineering Publishing
212
4
287-298
Yes (verified by ORBi)
International
0954-4100
United Kingdom
[en] aeroelasticity ; non-linear systems ; multi-degree-of-freedom systems ; system identification ; bilinear stiffness ; cubic stiffness ; freeplay
[en] System identification methods for non-linear aeroelastic systems could find uses in many aeroelastic applications such as validating finite element models and tracking the stability of aircraft during flight flutter testing. The effectiveness of existing non-linear system identification techniques is limited by various factors such as the complexity of the system under investigation and the type of non-linearities present. In this work, a new approach is introduced which can identify multi-degree-of-freedom systems featuring any type of non-linear function, including discontinuous functions. The method is shown to yield accurate identification of three mathematical models of aeroelastic systems containing a wide range of structural non-linearities.
Researchers ; Professionals
http://hdl.handle.net/2268/9943
10.1243/0954410981532441
http://journals.pepublishing.com/content/f166u14862453v00/?p=60e2ecf3e3fe43ae9dd9717d69c7d928&pi=5

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