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Frequency Domain Modal Estimation Techniques, Experimental Techniques

Published

Author(s)

S Fahey, Jon R. Pratt

Abstract

In this brief, we discuss the estimation of modal parame-ters using single-degree-of-freedom approximations. Then, we proceed to review two multi-degree-of- freedom techniques for modal parameter estimations-the first based on dynamic matrices and the second based on rational polynomials. Finally, we address the topic of refitting data to obtain global parameter extraction for an extended frequency range. It is our hope that this brief will serve to illuminate key issues facing the experimental modal analyst and provide gateways to the rich literature on this techno-logically important subject.
Citation
Frequency Domain Modal Estimation Techniques, Experimental Techniques
Volume
22 (6)

Keywords

modal analysis

Citation

Fahey, S. and Pratt, J. (1998), Frequency Domain Modal Estimation Techniques, Experimental Techniques, Frequency Domain Modal Estimation Techniques, Experimental Techniques (Accessed July 15, 2024)

Issues

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Created December 31, 1997, Updated October 12, 2021