| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration suppression device of a structure, which can properly suppress vibration when vibration of the structure is relatively small, and, when vibration of the structure is relatively large, which can prevent damage of the vibration suppression device and the structure due to excessive displacement of an additional vibration system with a relatively simple configuration.SOLUTION: A vibration suppression device 1 includes a mass body 2 connected to a structure R through a transmission member 3 having elasticity, and a variable attenuation damper 6. The attenuation coefficient of the variable attenuation damper 6, when a piston is positioned in a predetermined first outside section, is made larger than that in a case of being positioned in a predetermined inside section. The mass body 2, the transmission member 3 and the variable attenuation damper 6 constitute an additional vibration system. The specification of the additional vibration system is set so that when the piston is positioned in the inside section during vibration of the structure R, the eigen frequency of the additional vibration system synchronizes with the eigen frequency of the structure R.SELECTED DRAWING: Figure 1 |
