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Dynamic modal estimation using instrumental variables

Author
Salzwedel, H.
Published
Jul 1, 1980.
Physical Description
1 electronic document
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A method to determine the modes of dynamical systems is described. The inputs and outputs of a system are Fourier transformed and averaged to reduce the error level. An instrumental variable method that estimates modal parameters from multiple correlations between responses of single input, multiple output systems is applied to estimate aircraft, spacecraft, and off-shore platform modal parameters.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19800024269.
Accession ID: 80N32777.
TR-6419-01.
NASA-CR-152396.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15721209