Passive structural control using a one-way rotational inertia damper
In recent years,inerters have been increasingly studied for use in passive structural control devices.The inerter,a two-terminal device that has a restoring force proportional to the difference in the acceleration of its terminals,is used to convert translational motion into rotational motion.This transformation can be beneficial because the inerter,in combination with a flywheel,can be used to produce large mass effects,while only possessing a small physical mass.The inerter has been studied for structural control in many different configurations,including alone as a rotational inertia damper,in combination with a tuning spring,and as part of a modified tuned mass damper.While these devices have shown great promise for passive structural control,some authors have noted that the kinetic energy of the flywheel connected to the inerter can at times drive the response of the primary structure it is attached to,reducing the effectiveness of the device.In this study,a new type of one-way rotational inertia damper,featuring a one-way inerter,is studied.This type of inerter is advantageous because it allows energy to transfer only in a one-way fashion from the structure to the rotational inertia damper; thus,the energy that is transferred to the rotational inertia damper can never flow back and drive the response of the structure.In this study,a one-way rotational inertia damper is developed and its performance at mitigating the response of a single-degree-of-freedom structure is evaluated with numerical simulations.The results of this study demonstrate this passive vibration control device can at times be more effective in comparison to traditional rotational inertia dampers.
inerter passive one-way structural control energy dissipation
A.Javidialesaadi N.E.Wierschem
Department of Civil and Environmental Engineering,University of Tennessee,Knoxville,TN,USA
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
640-647
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）