Development of magnetorheological elastomers based tuned mass damper for building protection from seismic events

摘要：

　　This study investigated and evaluated a semi-active tuned mass damper which incorporated four multi-layered structures,fabricated using magnetorheological elastomers.The four magnetorheological elastomer structures formed a square layout and provided the tuned mass damper variable stiffness in order to track the excitation frequencies.This design not only increases the stability of the tuned mass damper but more importantly eliminates the magnetic circuit gap in our prior design because all four of the magnetic circuits used to control the magnetorheological elastomer isolators are closed circuits.A wide frequency shift range from 3Hz to 7.5Hz proved that this new design is feasible and controllable.In order to verify the capability of the magnetorheological elastomer based tuned mass damper to protect a building from earthquake,extensive simulation and experimental testing were conducted.The swept sinusoidal signal was used to excite a scaled three story building.The experimental results have verified that the magnetorheological elastomer based tuned mass damper outperformed all other passive tuned mass dampers.

关键词： Tuned mass damper Building protection Magnetorheological elastomers Vibration control

作者: Weihua Li Shuaishuai Sun Jian Yang

作者单位: School of Mechanical,Materials,Mechatronic and Biomedical Engineering,University of Wollongong,NSW,2522,Australia

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 122-127

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）