Abstract
An active vibration control device of a multistory structure is usually set up at the top of the structure. The device has aimed to suppress the primary vibration mode chiefly. However, a variety of frequency modes are included in the earthquake wave. Therefore, when a lot of frequency modes to make the secondary mode excited are included, the secondary mode is excited compared with the first mode. In this paper, it is considered to improve the control performance of the primary mode and the secondary mode with one active vibration control device set up at the top of the structure according to the vibration frequency of double-layered structure by the simulation and the experiment.
