Aseismic Study of High Temperature Gas-Cooled Reactor Core with Block-type Fuel : 2nd Report : An Analytical Method of Two-dimensional Vibration of Interacting Columns

Abstract

An analytical method of two-dimensional vibration of interacting columns for aseismic design of a high temperature gas-cooled reactor core with block-type fuel has been developed. In the analytical method, blocks are treated as rigid bodies and a spring dashpot model is used for the collision process between blocks. Analytical results are compared with experimental ones and both are found to be in good agreement. The analytical method can be used to predict the behavior of the high temperature gas-cooled reactor core under seismic excitation.