自動チューニング機能を有する水平TMDの開発

抄録

In recent years, steel-framed houses are increasing in Japan. Traffic vibration problems sometimes occur in steel frame houses, because of small damping force. TMD is generally effective in such the case. but it does not become popular because of the tuning cost. Therefore, in this research, we develop Auto tuning/ Advanced Tuned Mass Damper (ATMD) which can be tuned automatically. This device has the structure which apparent spring constant is changed by rotating the turntable to adjust the natural frequency. In the experiment, the accelerometer was vibrated sine wave on a small shaking-table. We investigated whether the vibration frequency matches the natural frequency of ATMD. There was a little error in calculation to convert frequency to angle, but good results were obtained.