Reference : Damping identification of linear dynamic systems using Common-base Proper Orthogonal ...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/130827
Damping identification of linear dynamic systems using Common-base Proper Orthogonal Decomposition
English
Andrianne, Thomas mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique >]
Dimitriadis, Grigorios mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale >]
19-Sep-2012
Proceedings of ISMA2012
9
No
No
International
International Conference on Noise and Vibration Engineering (ISMA 2012)
17-09-2012 to 19-09-2012
Katholieke Universiteit Leuven
Leuven
Belgium
[en] Damping ; Identification ; Proper Orthogonal Decomposition ; Linear system
[en] This paper presents a novel identification technique of the modal damping of linear systems. It is based on the Proper Orthogonal Decomposition (POD) of the free response of the system and extended to the Common-base POD (CPOD) approach. Different initial conditions are applied to the system and the corresponding free responses are considered simultaneously. The CPOD technique leads to a unique vector basis which is likely to contain more information about the dynamics of the system than a vector basis obtained by the classic POD technique, based on one set of initial conditions only. The ability of the technique to estimate the modal damping is demonstrated on a simulated mass-spring-damper system and an experimental system. Good agreement is shown between the damping estimates of the CPOD technique and the ones of the LSCF technique. The advantage and limitations of the present technique are discussed.
http://hdl.handle.net/2268/130827

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
manuscript_ISMA-159.pdfPublisher postprint102.56 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.