Feasibility Test of Adaptive Passive Control System Using MR Fluid Damper with Electromagnetic Induction Part
Publication: Journal of Engineering Mechanics
Volume 136, Issue 2
Abstract
This paper experimentally investigates the feasibility of an adaptive passive control system, which consists of a magnetorheological (MR) fluid damper and an electromagnetic induction (EMI) part, for suppressing vibration of building structures subjected to ground accelerations. In the adaptive passive control system, the EMI part composed of a permanent magnet and a coil convert the kinetic energy of the relative motion between a building and a damper into the electric energy, which is used for a change in damping characteristics of the MR fluid damper. Since the EMI part can be used as a controller, which determines the command voltage input according to structural responses as well as a power source, the adaptive passive system can be much more compact, convenient, and economic than a conventional active/semiactive system that needs a power supply, a controller, and sensors. To experimentally verify the feasibility of the adaptive passive control system, a shaking table test of a small-scale building model employing the MR fluid damper with the EMI part is conducted. The performance of the adaptive passive control system is compared with that of passively operated MR fluid damper-based semiactive control systems.
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Acknowledgments
The writers gratefully acknowledge the support of this research by the Smart Infra-Structure Technology Center (SISTeC) from the Korea Science and Engineering Foundation and the Construction Core Technology Research and Development Project (Grant No. UNSPECIFIEDC105A1000021-05A0300-02110) from Korea Institute of Construction and Transportation Technology Evaluation and Plan (KICTTEP).UNSPECIFIED
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 136 • Issue 2 • February 2010
Pages: 254 - 259
Copyright
© 2010 ASCE.
History
Received: Jan 31, 2006
Accepted: Sep 4, 2009
Published online: Jan 15, 2010
Published in print: Feb 2010
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