Neural Networks for Decentralized Control of Cable-Stayed Bridge
Publication: Journal of Bridge Engineering
Volume 8, Issue 4
Abstract
The system identification and vibration control of a cable-stayed bridge are considered difficult to achieve due to the bridge’s structural complexity and system uncertainties. In this paper, based on the concept of decentralized information structures, a decentralized, nonparametric identification and control algorithm with neural networks is proposed for the purpose of suppressing the vibration of a documented six-cable-stayed bridge model induced by earthquake excitations. The control strategy proposed here uses the stay cables as active tendons to provide control forces through appropriate actuators. Each individual actuator is controlled by a decentralized neurocontroller that only uses local information. The feature of decentralized control simplifies the implementation of the control algorithms and makes decentralized control easy to practice and cost effective. The effectiveness of the decentralized identification and control algorithm based on neural networks is evaluated through numerical simulations. And the adaptability of the decentralized neurocontrollers for different kinds of earthquake excitations and for a damaged cable-stayed bridge model is demonstrated via numerical simulations.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 8 • Issue 4 • July 2003
Pages: 229 - 236
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jul 24, 2001
Accepted: Jul 31, 2002
Published online: Jun 13, 2003
Published in print: Jul 2003
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