Performance of a new magnetorheological elastomer isolation system

作者：Majid Behrooz, Xiaojie Wang, Faramarz Gordaninejad · 发表于：Smart Materials and Structures · 年份：2014 · DOI：10.1088/0964-1726/23/4/045014 · 被引用次数：163 · 研究领域：Vibration Control and Rheological Fluids、Seismic Performance and Analysis、Structural Engineering and Vibration Analysis

This paper presents the performance of a new magnetorheological elastomer-based semi-active/passive variable stiffness and damping isolator (VSDI) in a scaled building system. The force of the VSDI can be controlled in real time by varying the applied magnetic field. To demonstrate the performance of the VSDI, four prototypes are built and utilized in a scaled three-story building. A Lyapunov-based control strategy is employed and it is demonstrated that it works well for the scaled building system under the scaled El Centro earthquake motion. Experimental results show that the VSDIs significantly reduce the acceleration and relative displacement of the building floors.