Active Control of Seismic Isolation System Using Mechatro-Damper

Abstract

In recent years, highly developed vibration control techniques have been in demand for suppression of vibration responses of various structures which are subjected to seismic and wind excitation to achieve high performance and design accurancy. In this report, we aimed to develop a multifunctional vibration control device proposed earlier, referred to as a mechatro damper, and to apply it to a seismic isolation system. This paper is focused on the active control methodology based upon linear control as well as sliding mode control. The results obtained through numerical simulation and dynamic testing for the active mode are presented and compared with those for the semi-active mode obtained in the former report.