衝突型動吸振器に関する研究(機械力学)

概要

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Dynamic damper has been used in order to reduce the shakes in case of the wind, a small-scale earthquake, and so on. However, there is a possibility that the dynamic damper damages apparatus around it because it vibrates greatly on large earthquake. This study is researching new structure of dynamic damper from large to small vibration. The structure is as follows. Impact Wall is fixed conventional space from mass of dynamic damper. When the mass vibrates more than the space, it collides with the wall. By this collision, the higher stable modes are excited at object, and vibration energy is carried away faster. As a result, response of displacement on object is made smaller. And damage of apparatus around dynamic damper is not done because vibration of dynamic damper is limited by wall.
社団法人日本機械学会の論文
2004-03-03