Reference : Identification of Structural Free-play Non-linearities using the Non-Linear Resonant ...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/24631
Identification of Structural Free-play Non-linearities using the Non-Linear Resonant Decay Method
English
Yang, Z. [University of Manchester > School of Mechanical Aerospace and Civil Engineering > > >]
Dimitriadis, Grigorios mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
Vio, Gareth A. [University of Manchester > School of Mechanical Aerospace and Civil Engineering > > >]
Cooper, Jonathan E [University of Manchester > School of Mechanical Aerospace and Civil Engineering > > >]
Wright, Jan R. [University of Manchester > School of Mechanical Aerospace and Civil Engineering > > >]
Sep-2006
Proceedings of the 2006 International Conference on Noise and Vibration Engineering
Katholieke Universiteit Leuven
2797-2809
No
No
International
90-73802-83-0
Heverlee
Belgium
2006 International Conference on Noise and Vibration Engineering
du 18 septembre au 20 septembre 2006
Katholieke Universiteit Leuven
Leuven
Belgium
[en] modal testing ; free-play ; non-linear resonant decay method ; identification of non-linearties
[en] Structural non-linearities are becoming of increasing importance in determining the performance of a range
of vibrating mechanical structures. As a consequence, the identification of systems with non-linearities is
starting to become a necessary part of vibration testing procedures. NL-RDM (Non-Linear Resonant Decay
Method) is an approach for the identification of non-linear multi-degree of freedom systems in modal
space on a mode by mode basis, using an appropriated sine excitation to isolate modes or groups of modes.
However, the application of NL-RDM to a multi-degree of freedom system with a discontinuous free-play
non-linearity has not been attempted yet, except to treat it using high order polynomial terms. The difficulty
of using NL-RDM when seeking a discontinuous free-play model lies in the choice of the so-called underlying
linear model to be used in uncoupling the linear equations. In this paper, a simulated two degree of
freedom lumped parameter system with a free-play non-linearity
Researchers ; Professionals
http://hdl.handle.net/2268/24631

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
24 isma2006_0338.pdfPublisher postprint283.95 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.