| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration control device of a structure capable of simplifying a configuration, saving a space, and reducing possibility of corrosion by forming a damping mechanism such as a heavy weight into a sealed structure. SOLUTION: This vibration control device of the structure is provided with a sealed vessel 1 provided in the structure 30, the heavy weight 7 provided movably in the sealed vessel to partition the inside of the sealed vessel 1 into a first space 11A and a second space 11B, and energizing bodies 12A, 12B for energizing the heavy weight in the direction of travel. A fluid flow rate control means 20 communicating with at least the space on one side is provided to adjust damping coefficient freely by controlling the fluid flow rate control means. The fluid flow rate control means is controlled in accordance with movement of the heavy weight by letting fluid in the space flow through the fluid flow rate control means to control flow rate of fluid in spite of a simple device configuration, ever-change damping characteristic to realize the optimum damping rate, and save electric power. The whole vibration control device can be miniaturized and be inexpensively constituted by realizing the sealed structure to avoid contact with outside air as much as possible and eliminate possibility of corrosion even under corrosion environment. COPYRIGHT: (C)2006,JPO&NCIPI |
