[en] This paper proposes a frequency domain based
approach for the identification of the main modal properties of an electronic module substructure contained in a power unit. It is based on a Singular Value Decomposition (SVD)of the power spectral density of the measured data. Further-more, it is also proposed to combine this approach with a re-duced model resulting from Finite Element (FE) method. In-deed, the Minimum Dynamic Residual Expansion technique(MDRE) allows to get more reliable results. Comparison between the resonance frequencies determined through the up-dated FE model of the single module and experimental ones of the module fastened to its packaging shows good similarity.
Disciplines :
Art & art history Aerospace & aeronautics engineering Mechanical engineering
Author, co-author :
Ben Fekih, Lassaad ; Université de Mons > Faculté Polytechnique > Mécanique rationnelle, Dynamique et Vibrations
Kouroussis, Georges ; Université de Mons > Faculté Polytechnique > Mécanique rationnelle, Dynamique et Vibrations
Wattiaux, David ; Université de Mons > Faculté Polytechnique > Qualité, Accompagnement, Pédagogie - Polytech
De Fruytier, Christophe
Verlinden, Olivier ; Université de Mons > Faculté Polytechnique > Mécanique rationnelle, Dynamique et Vibrations
Language :
English
Title :
An efficient experimental/finite-element approach for modal identification of a fastened unattainable space electronic module
Publication date :
09 May 2012
Event name :
9th National Congress on Theoretical and Applied Mechanics (NCTAM2012)
Event place :
Brussels, Belgium
Event date :
2012
Research unit :
F703 - Mécanique rationnelle, Dynamique et Vibrations
Research institute :
R500 - Institut des Sciences et du Management des Risques
