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Proceedings Paper

Development and validation of a new experimental method to identify damping matrices of a dynamic system
Author(s): Jay H. Kim; Joon Hyun Lee
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Paper Abstract

A new procedure is developed to identify damping in a dynamic system as damping matrices in the equation of motion from the dynamic stiffness matrix, which is obtained by inverting the measured frequency response function matrix. It is shown that the method provides the most direct and shortest path to finding dampened matrices. The procedure is applied to a theoretical example and two real structures for its validation, which also reveals unique measurement and signal processing issues related to the technique. Potential applications and possible improvement of the identification method are discussed.

Paper Details

Date Published: 2 July 2001
PDF: 12 pages
Proc. SPIE 4331, Smart Structures and Materials 2001: Damping and Isolation, (2 July 2001); doi: 10.1117/12.432712
Show Author Affiliations
Jay H. Kim, Univ. of Cincinnati (United States)
Joon Hyun Lee, Univ. of Cincinnati (United States)

Published in SPIE Proceedings Vol. 4331:
Smart Structures and Materials 2001: Damping and Isolation
Daniel J. Inman, Editor(s)

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