MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation

Abstract:

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For vibration control of long-span arch bridges under multi-support seismic excitation, this paper presents schemes of control to seismic responses of arch bridges with Magneto-Rheological dampers(MRD). In the semi-active control system of arch bridge-MRD, Linear Quadratic Gaussian (LQG)-based Sign function control algorithm is used to command MRD,and traveling wave effects on the responses of structure are considered. The Nimu arch bridge is used as a simulation example to verify the proposed control scheme. Numerical results show that traveling wave effects have no unfavorable influence on the control to response of arch bridge.

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Periodical:

Edited by:

Xuejun Zhou

Pages:

1402-1405

DOI:

10.4028/www.scientific.net/AMM.90-93.1402

Citation:

Z. Y. Li et al., "MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation", Applied Mechanics and Materials, Vols. 90-93, pp. 1402-1405, 2011

Online since:

September 2011

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$35.00

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