Seismic evaluation of the CRDM and the CRDM guide tube for JRR-3

Kikuchi, Masanobu; Kawamura, Sho; Hosoya, Toshiaki

JAEA-Technology 2021-040, 86 Pages, 2023/02

JAEA-Technology-2021-040.pdf:3.26MB

In JRR-3, in response to new regulatory standard for research and test reactor which is enforced December 2013, we established new design basis ground motion for confirming new regulatory standard and carried out seismic evaluations of the appointments, instruments and structures which are installed in JRR-3 by using that earthquake motion. This report shows that the result of evaluations by fatigue strength evaluation, which is more detailed evaluation approach, about Control Rod Drive Mechanism (CRDM) and the CRDM Guide Tube that have gotten the serious result of seismic safety margin by using time history response analysis method. As a result, it was confirmed that CRDM and the CRDM Guide Tube have sufficient seismic safety margin.

A Feasibility study on the innovative control rod driving mechanism, 1

Ishizaka, Yuichi*;

JAERI-M 89-174, 105 Pages, 1989/11

JAERI-M-89-174.pdf:9.76MB

no abstracts in English

Seismic evaluation of control rod for JRR-3

Kikuchi, Masanobu; Kawamura, Sho; Araki, Masaaki

no journal, , 

We carried out seismic evaluation and showed suitability in the new regulatory standard of JRR-3. CRDM and insertion property of control rod carried out more detailed approach because the past results had gotten the serious results of seismic safety margin. As a result, it was confirmed that CRDM and insertion property of control rod have sufficient seismic safety margin.