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Proceedings Paper

Control of structures featuring a new MRE isolator system
Author(s): Majid Behrooz; Xiaojie Wang; Faramarz Gordaninejad
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Paper Abstract

This study is focused on control of a scaled building structure using a new semi-active Variable Stiffness and Damping Isolator (VSDI). The proposed VSDI system consists of a traditional steel-rubber vibration absorber, and a magnetorhelogical elastomer (MRE) with a controllable stiffness and damping behavior. To demonstrate the feasibility of using VSDIs a 1:16 scaled, three-story building is constructed and installed on a shake table and its base is supported by four prototype VSDIs. The VSDIs can be regulated in real time by varying the applied magnetic field through a controller. A phenomenological model is proposed and implemented on VSDI devices. The scaled El Centro earthquake excitation is applied to the system, and the vibration mode is controlled by a Lyapunov-based control strategy. Results show that the a significant reduction in structural response can be achieved for both displacement and acceleration.

Paper Details

Date Published: 27 March 2012
PDF: 9 pages
Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83411I (27 March 2012); doi: 10.1117/12.915828
Show Author Affiliations
Majid Behrooz, Univ. of Nevada, Reno (United States)
Xiaojie Wang, Univ. of Nevada, Reno (United States)
Faramarz Gordaninejad, Univ. of Nevada, Reno (United States)


Published in SPIE Proceedings Vol. 8341:
Active and Passive Smart Structures and Integrated Systems 2012
Henry A. Sodano, Editor(s)

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