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A Multi-Input Modal Estimation Algorithm for Mini-Computers
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English
Abstract
This paper describes a modal parameter estimation algorithm that uses frequency response functions relative to several exciter locations in a simultaneous manner. Phase information between the exciter locations is used to separate close or multiple roots, and consistent estimates are given for modal parameters and eigenvectors. An experimental investigation of a structure with repeated roots is described. In the single exciter location case, this method reduces to the least squares complex exponential technique.
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Vold, H., Kundrat, J., Rocklin, G., and Russell, R., "A Multi-Input Modal Estimation Algorithm for Mini-Computers," SAE Technical Paper 820194, 1982, https://doi.org/10.4271/820194.Also In
References
- Brown, D.L. Allemang, R.J. Zimmerman, R. Mergeay, M. “Parameter Estimation Techniques for Modal Analysis,” SAE Paper Number 790221 1979
- Ibrahim, S.R. Goglia, G.L. “Modal Identification of Structures from Responses and Random Decrement Signatures,” NASA-CR-155321 1977
- Prony, R. “Essai Experimental et Analytique sur les Lois de la Dilatabilite des Fluides Elastiques et sur Celles de la Force Expansive de la Vapeur del’ eau et de la Vapeur del’ Alkool, a Differentes Temperatures,” Journal del’ Ecole Polytechnique (Paris) 1 1795 24 76
- Lancros, C. “Applied Analysis,” Prentice Hall 1956