Designing a smart damping system to mitigate structure vibration: Part 2. Experimental approval of unified Lyapunov control algorithm

Gwanghee Heo; Giu Lee; WooSang Lee; Donggi Lee

doi:10.1117/12.599364

19 May 2005 Designing a smart damping system to mitigate structure vibration: Part 2. Experimental approval of unified Lyapunov control algorithm

Gwanghee Heo, Giu Lee, WooSang Lee, Donggi Lee

Author Affiliations +

Proceedings Volume 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control; (2005) https://doi.org/10.1117/12.599364
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

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.

Citation Download Citation

Gwanghee Heo, Giu Lee, WooSang Lee, and Donggi Lee "Designing a smart damping system to mitigate structure vibration: Part 2. Experimental approval of unified Lyapunov control algorithm", Proc. SPIE 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control, (19 May 2005); https://doi.org/10.1117/12.599364

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