Damped structure is a friendly structure

Lynn C. Rogers

doi:10.1117/12.174088

1 May 1994 Damped structure is a friendly structure

Lynn C. Rogers

Proceedings Volume 2193, Smart Structures and Materials 1994: Passive Damping; (1994) https://doi.org/10.1117/12.174088
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

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.

Citation Download Citation

Lynn C. Rogers "Damped structure is a friendly structure", Proc. SPIE 2193, Smart Structures and Materials 1994: Passive Damping, (1 May 1994); https://doi.org/10.1117/12.174088

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