VIBRATION SUPPRESSION DEVICE

PROBLEM TO BE SOLVED: To suppress dislocation of the natural frequency of a vibration-damping body from the natural frequency of a structure even when the displacement amount of the vibration-damping body becomes large. SOLUTION: A base frame 8 is installed on the structure 1, and the vibration-damping body 3 is placed on the frame 8 movably through a linear guide mechanism 9. The bottoms of a front 12a and a rear resilient structure 12b arranged in V-form along the fore-and-aft direction are attached swingably to a stationary shaft 15 mounted through a bracket 14 in the lower positions on the left and the right of the vibration-damping body 3. The tops of the resilient structures 12a and 12b are attached swingably to a bracket 18 installed in the upper part of a supporting frame 13 mounted upright at the front extremity and the tail of the base frame 8. The horizontal component of the resilience when the structures 12a and 12b arranged in inclination are deformed in association with the displacement of the vibration-damping body 3 is allowed to act in combination, and thereby the correlation of the displacement amount of the vibration-damping body 3 and the restoring force acting on the vibration-damping element 3 can be approached to a linear form. COPYRIGHT: (C)2005,JPO&NCIPI