Journal
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Volume 24, Issue 5, Pages 1250-1259Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2009.02.015
Keywords
Operational modal analysis; Transmissibilities
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Funding
- Fund for Scientific Research, Flanders, Belgium (FWO Vlaanderen)
- Institute for the Promotion of Innovation by Science and Technology in Flanders (IWT)
- Flemish Community
- European Community
- Research Council (OZR) of Vrije Universiteit Brussel (VUB)
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In this contribution the approach to identify modal parameters from output-only (scalar) transmissibility measurements [C. Devriendt, P. Guillaume, The use of transmissibility measurements in output-only modal analysis, Mechanical Systems and Signal Processing 21 (7) (2007) 2689-2696] is generalized to multivariable transmissibilities. In general, the poles that are identified from (scalar as well as multivariable) transmissibility measurements do not correspond with the system's poles. However, by combining transmissibility measurements under different loading conditions, it is shown in this paper how model parameters can be identified from multivariable transmissibility measurements. (C) 2009 Elsevier Ltd. All rights reserved.
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