445 Reduction Method of Seismic Response with Friction Bearing : 2nd Report, For the Case of Spherical Bearing

Abstract

A new device for reduction of seismic response of mechanical system is developed. The device is friction bearing which consists of upper and lower plates with spherical concaves and sandwiched spherical metals. Seismic response is reduced by friction between plates and metals. The device is shaken by the shaking table. Acceleration response of upper plate is measured. The maximum values of the response and the excitation, sum of squares and Fourier spectrum are obtained. It is concluded that the repose is significantly reduced. The device is applied to console rack. An analytical method is shown.