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Proceedings Paper

Damped structure is a friendly structure
Author(s): Lynn C. Rogers
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Paper Abstract

Generalizations are drawn for passive viscoelastic damping both alone and in conjunction with active control for vibration suppression. There are many high payoff applications where passive damping has played a vital role in suppressing vibration and noise. Many studies have shown that passive damping can greatly decrease the size and power required and increase the robustness of active control systems. There is a strong synergism with passive damping and active control. Structural identification with its largely unrecognized challenges is discussed. In particular, the case of high modal density is covered. The results of several analytic studies are summarized together with selected experimental results. Passive damping has been shown to remove large amounts of vibratory energy, lower the response of the structure to excitation, stabilize any active control system, and make an active system more robust. For extremely challenging vibration suppression requirements, an optimum blend of active and passive is the only practical approach.

Paper Details

Date Published: 1 May 1994
PDF: 4 pages
Proc. SPIE 2193, Smart Structures and Materials 1994: Passive Damping, (1 May 1994); doi: 10.1117/12.174088
Show Author Affiliations
Lynn C. Rogers, Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 2193:
Smart Structures and Materials 1994: Passive Damping
Conor D. Johnson, Editor(s)

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