Study on Structural Vibration Control by GA Controller Involving Time Delay

Abstract:

Active-control algorithms such as optimal control or impulse control methods generally achieve satisfactory control effectiveness, but it often fails to control dynamic systems with time-delay effectively. In view of this reason, a novel active controller using Genetic Algorithm (GA) is proposed in this paper, which is based on discrete motion equation of multi-freedom degree system with time delay. It can solve such subsistent problems as effective control for a seismically excited structure with an explicit time delay. Meanwhile it is also prone to achieve a desired vibration state in accordance with different control objectives. Finally in order to verify its validity, the GA controller are applied to a three-storey and a eight-storey structures excited by different seismic forces, numerical examples of which are given to prove it capable of providing satisfactory control effect with time delay.

• Periodical: Applied Mechanics and Materials (Volumes 143-144)
• Pages: 335-340
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.143-144.335
• Online since: December 2011
• Authors: Xiao Min Xue, Qing Sun, Xiao Hong Wu, Ling Zhang
• Keywords: Control Algorithm, GA Controller, Time Delay, Vibration Control

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