Restrained Stroke Active Tuned Mass Damper Device in Structures

摘要

The present invention relates to an active mass tuning and damping device installed in a structure to reduce the vibration of the main structure, as in the conventional active mass tuning and damping device, while limiting the additional mass within a predetermined limited amplitude range, the conventional active mass Unlike the tuning attenuation apparatus, the present invention relates to an amplitude-limiting active mass tuning attenuation apparatus that can prevent a large increase in the displacement of the main structure due to such limited amplitude displacement.;In the amplitude-limiting active mass tuning and damping device of the present invention, a stopper and a displacement locking means are provided in the displacement direction of the additional mass so that the collision force between the additional mass and the stopper is effective as a structural control force even if the displacement of the additional mass is out of a predetermined range. By the action of the switching stopper and by the displacement locking means to maintain the proper phase difference between the additional mass and the main structure, the movement of the additional mass to avoid the collision between the additional mass and both side walls as in the existing active mass tuning and damping device. It is not necessary to limit the to a predetermined range, and thus the vibration suppression effect of the mass tuning and damping device can be relatively increased.