Optimal Design Strategy of Connected Control Method for Two Dynamically Similar Structures
Publication: Journal of Engineering Mechanics
Volume 133, Issue 12
Abstract
Structural control of adjacent flexible structures has been shown to be effectively accomplished using the connected control method (CCM), which uses an auxiliary structure to provide a reaction force. A perceived constraint of the CCM is the ineffective control of structures with similar dynamics. However, the writers have presented a modified CCM mechanism in which dampers are connected between dynamically similar structures with a difference in connection height using cantilever structures. The research described in this paper extends the CCM to couple two dynamically similar structures and determines optimal stiffness and damping in the connector link. A two-degree-of-freedom building model is developed for the optimal design of the connected control devices. The optimal solutions of the connector stiffness and damping take into account the presence of fixed points in the systems transfer functions. Analytical results confirm the effectiveness of the proposed method and design. Experimental tests then verify the response reduction capabilities of the proposed optimal design.
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Acknowledgments
The writers gratefully acknowledge the support of the international collaboration under a Japan Society for the Promotion of Science (JSPS) Short Term Fellowship.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 133 • Issue 12 • December 2007
Pages: 1247 - 1257
Copyright
© 2007 ASCE.
History
Received: Jul 6, 2005
Accepted: Sep 27, 2006
Published online: Dec 1, 2007
Published in print: Dec 2007
Notes
Note. Associate Editor: Raimondo Betti
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