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Proceedings Paper

Designing a smart damping system to mitigate structure vibration: Part 2. Experimental approval of unified Lyapunov control algorithm
Author(s): Gwanghee Heo; Giu Lee; WooSang Lee; Donggi Lee
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Paper Abstract

This paper proposes an effective vibration control algorithm using a smart damping system for vibration mitigation. The proposed algorithm, which extends Lyapunov stability theory into a unified system, enables to correct the errors in quantization by its increased stability. The validity of this design method is proved in the experiment on a control model of three-storied building structure. Smart damper is used for shear mode MR damper in the experiment, and its control effectiveness is evaluated. In order to make a more accurate control model experimentally, model updating is performed on the basis of the analysis of dynamic characteristics of structure and of the mathematical analysis of a lumped mass model, and then it employs a state space model redefined by structural property matrix. In this vibration control experiment, control effect under the influence of each different earthquake magnitude is evaluated to various performance index, and thus the algorithm presented here is proved to be valid.

Paper Details

Date Published: 19 May 2005
PDF: 7 pages
Proc. SPIE 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control, (19 May 2005); doi: 10.1117/12.599364
Show Author Affiliations
Gwanghee Heo, Konyang Univ. (South Korea)
Giu Lee, Chungnam National Univ. (South Korea)
WooSang Lee, Chungnam National Univ. (South Korea)
Donggi Lee, Konyang Univ. (South Korea)

Published in SPIE Proceedings Vol. 5757:
Smart Structures and Materials 2005: Modeling, Signal Processing, and Control
Ralph C. Smith, Editor(s)

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