Instantaneous Optimal Wilson-Θ Control Method
Publication: Journal of Engineering Mechanics
Volume 129, Issue 11
Abstract
A control algorithm based on the instantaneous optimal control method, is presented for on-line control of the civil engineering structures subjected to earthquake excitations. This algorithm employs the unconditionally stable Wilson-θ method to discretize the continuous second-order form of the dynamical equation of motion, and uses a new performance index having an acceleration term as well as velocity and displacement terms. This method is named the instantaneous optimal Wilson-θ method. An eight-story shear-type building frame using one active mass damper/driver mechanism installed on the roof is used to demonstrate the efficiency of the proposed control algorithm in comparison to the other optimal control methods. Behavior of different combinations of weighting matrices related to displacement, velocity, and acceleration response vectors of the entire building are examined, and compared with the complete feedback control of the response vectors.
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References
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Information
Published In
Journal of Engineering Mechanics
Volume 129 • Issue 11 • November 2003
Pages: 1268 - 1276
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Dec 19, 2000
Accepted: Feb 3, 2003
Published online: Oct 15, 2003
Published in print: Nov 2003
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