Energetic classifying of vibration modes in subspace stochastic modal analysis

As a consequence of progress in structure modal analysis, in-operation modal tests are more and more widely performed, thus providing a realistic characterisation of the system in its environment. In this framework, it is worthwhile considering the significance of identified modes. A solution could...

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Bibliographic Details
Published inMechanical systems and signal processing Vol. 19; no. 1; pp. 1 - 19
Main Author Gontier, Camille
Format Journal Article
LanguageEnglish
Published London Elsevier Ltd 2005
Elsevier
Subjects
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Statistical analysis
Modal analysis
Signal processing
Vibration test
Vibrational mode
Energy level
Random vibration
Structural analysis
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Summary:As a consequence of progress in structure modal analysis, in-operation modal tests are more and more widely performed, thus providing a realistic characterisation of the system in its environment. In this framework, it is worthwhile considering the significance of identified modes. A solution could be to classify these modes according to their energy levels while the structure is operating; that would allow selecting the most powerful ones. The following paper investigates this possibility, taking into account the context of stochastic analysis, which means that the excitations are unknown.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0888-3270
1096-1216
DOI:10.1016/j.ymssp.2004.03.004