H∞ optimization of tuned inerter damper with negative stiffness device subjected to support excitation
In this study,H∞ optimization is conducted for a tuned inerter damper with negative stiffness device(denoted as TID_NSD)subjected to harmonic support excitation.The study shows there are still two nonzero-frequency fixed points independent of the damping of the TID_NSD,therefore,the optimum tuning frequency and damping ratio for the TID_NSD are respectively derived based on the well-known fixed-points theory.By imposing the zerofrequency fixed point having the same amplitude as the other two nonzero-frequency fixed points,the optimum negative stiffness ratio,which makes the primary system with a TID_NSD remain stable,is obtained.
Tuned inerter damper Negative stiffness device Fixed-points theory H∞ optimization support excitation
Kun Ye Yuxuan Zhang Wenai Shen Rong Fu
School of Civil Engineering and Mechanics,Huazhong University of Science and Technology
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
715-722
2018-07-22(万方平台首次上网日期,不代表论文的发表时间)