Control Structure Interaction of Electromagnetic Mass Damper System for Structural Vibration Control
Publication: Journal of Engineering Mechanics
Volume 134, Issue 5
Abstract
To investigate the effect of control-structure-interaction (CSI) between the innovative electromagnetic mass damper (EMD) control system and the test structure, three computational models are first developed in this paper. Then, typical driving voltages are applied to the servo-amplifier of the EMD system to excite the structure and to examine the dynamic behavior of the EMD system when it is implemented into the structure. Furthermore, the test results are compared with the predictions based on the proposed parametric models, namely on-line examination. Finally, shaking table tests of structural seismic response control employing the EMD control system are conducted to validate and compare the effectiveness of those parametric models. All the test results have shown that only when the CSI effect (especially the higher-order CSI effect) is fully considered, can the on-line dynamical property of the EMD system be accurately predicted and its control performance fully exerted. This is essential to achieve the highest performance when employing such EMD systems in suppressing structural vibrations.
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Acknowledgments
The research of this paper is supported in part by the National Natural Science Foundation of China under Grant No. NNSFC50608026 and No. NNSFC50038010, and the National High-Tech Development Program under Grant No. UNSPECIFIED2002AA615070. The writers are also grateful to Professor Gangbing Song from the University of Houston for grammatical revisions in the paper.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 134 • Issue 5 • May 2008
Pages: 428 - 437
Copyright
© 2008 ASCE.
History
Received: Oct 12, 2005
Accepted: Aug 16, 2007
Published online: May 1, 2008
Published in print: May 2008
Notes
Note. Associate Editor: Erik A. Johnson
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