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| Reference : Physical interpretation of independent component analysis in structural dynamics |
| Scientific journals : Article | |||
| Physical, chemical, mathematical & earth Sciences : Mathematics Engineering, computing & technology : Mechanical engineering Physical, chemical, mathematical & earth Sciences : Physics | |||
| http://hdl.handle.net/2268/18984 | |||
| Physical interpretation of independent component analysis in structural dynamics | |
| English | |
Kerschen, Gaëtan  [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux >] | |
| Poncelet, Fabien [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >] | |
| Golinval, Jean-Claude [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >] | |
| 2007 | |
| Mechanical Systems & Signal Processing | |
| Academic Press | |
| 21 | |
| 1561–1575 | |
| International | |
| 0888-3270 | |
| London | |
| United Kingdom | |
| [en] system identification ; output-only modal analysis ; Blind source separation; Independent component analysis | |
| [en] This paper focuses on the relation between the vibration modes of mechanical systems and the modes computed through a blind source separation technique called independent component analysis (ICA). For free and random vibrations of weakly damped systems, a one-to-one relationship between the vibration modes and the ICA modes is demonstrated using the concept of virtual source. Based on this theoretical link, a time-domain structural system identification technique is proposed and is illustrated using numerical examples. | |
| Researchers ; Professionals ; Students | |
| http://hdl.handle.net/2268/18984 | |
| 10.1016/j.ymssp.2006.07.009 |
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