Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2018
Date : August 28, 2018 - August 31, 2018
The tuned mass damper (TMD), which is often used as the vibration control device, is effective against wind shaking, but in order to reduce the earthquake response the mass of the TMD must be increased. On the other hand, in the case of a device (inertial mass damper) that rotates the weight at high speed by a ball screw mechanism and obtains a large inertial mass effect, since a large mass effect is obtained with a small device mass, it is effective for reducing the earthquake response. However, there are few researches on effective placement method and optimum design of inertial mass dampers for multi-mass systems. Therefore, the purpose of this research is to effectively reduce the vibration response of the structure by investigating effective placement method of the inertial mass damper in the low stories of the structure and adjusting the parameters. The object to be analyzed is a 10-story structure, and the inertial mass damper is incorporate in up to the second floor. Adjustment was made to the acceleration response magnification of the top floor for each examination case. As a result, the method of arranging the series and parallel incorporation in the first floor is the most effective in reducing the vibration response.
