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組立構造解析を用いた時刻歴応答解析

Time history response analysis by assembly structural analysis

中島 憲宏; 西田 明美; 川上 義明; 鶴田 理; 鈴木 喜雄

Nakajima, Norihiro; Nishida, Akemi; Kawakami, Yoshiaki; Tsuruta, Osamu; Suzuki, Yoshio

原子力機構は、原子力施設等、大型構造物の耐震健全性を分析するための耐震信頼性試験を計算機上で実現できるように、耐震性評価用3次元仮想震動台の開発を進めている。これは、実験では困難な実物大構造物等の振動台試験や運転中の原子力発電施設等の振動台試験を計算機上で実現しようとする試みである。その中核機能のひとつとして、FIESTA(Finite Element Structural Analysis for Assembly)と呼ぶ組立構造物の構造解析コードを開発している。これは、原子力施設等の耐震健全性評価を行う一つの手段として、組立構造物の部品間挙動に着目した詳細解析法である。本報では、FIESTAの一部機能である時刻歴応答解析について報告する。

Japan Atomic Energy Agency has been developing the three-dimensional virtual shaking table for earthquake-resistant evaluations in the atomic energy facilities. It is to realize an earthquake proofing reliability examination by analyzing the earthquake-resistant of the large structure on a computer. This is the trial that is going to realize a virtual shaking table examination such as difficult size of the original structures or nuclear power generation facilities while driving on a computer. Authors develop the structure analysis cord of the assembling structure so called FIESTA (Finite Element Structural Analysis for Assembly) as one of the core functions. This is the details analytical method that paid its attention to the behavior between the part of the assembling structure as one means to perform the earthquake-resistant evaluations for such as atomic energy facilities. In this report, it is reported the way of time history response analysis by assembly structural analysis.

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