Theoretical and Experimental Studies on Hybrid Control of Seismic Structures


This paper presents analytical and experimental studies on a hybrid control system consisting of an active control system and a passive fluid damper. This hybrid control system is built with structural bracing and used to reduce structural seismic response by providing passive and active control forces. In this study, the dynamic interaction between structure and control devices is taken into account. Dynamics of hydraulic actuator and passive fluid damper are established on the basis of experimental analysis. A three-story structure model with hybrid control attached to the first floor is mounted and tested on a shaking table. Dynamic characteristics of the hybrid control system are identified in discrete-time domain. An observer/controller identification (OCID) procedure is used to determine the system Markov parameters, and an eigensystem realization algorithm (ERA) is employed to obtain the state-space model of the hybrid control system.


Civil, Architectural and Environmental Engineering

Second Department

Electrical and Computer Engineering

Third Department

Engineering Management and Systems Engineering

Fourth Department

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version


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© 2024 The Authors, All rights reserved.

Publication Date

01 Jan 1996

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