A Study of a Simple Seismic Isolation Table Using Semicircular Arc Springs

Abstract

In this paper, a two dimensional isolation table using semicircular arc springs and a magnetic damper which has a simple construction, low height and the capability of vibration isolation in the horizontal direction, is proposed. The trial isolation table was made, and the seismic and frequency responses of the table installed a mass were measured using an electrohydraulic-type shaking table. The experimental results were compared with the calculated results, and the effects of vibration suppression of the table were discussed.