27 March 2012 Control of structures featuring a new MRE isolator system
Author Affiliations +
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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Majid Behrooz, Majid Behrooz, Xiaojie Wang, Xiaojie Wang, Faramarz Gordaninejad, Faramarz Gordaninejad, } "Control of structures featuring a new MRE isolator system", Proc. SPIE 8341, Active and Passive Smart Structures and Integrated Systems 2012, 83411I (27 March 2012); doi: 10.1117/12.915828; https://doi.org/10.1117/12.915828
PROCEEDINGS
9 PAGES


SHARE
Back to Top