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原子力施設の機器・配管群の振動シミュレーション

Vibration simulation for component and piping structures of nuclear plants

西田 明美 ; 山田 知典; 櫛田 慶幸; 新谷 文将; 武宮 博; 中島 憲宏 

Nishida, Akemi; Yamada, Tomonori; Kushida, Noriyuki; Araya, Fumimasa; Takemiya, Hiroshi; Nakajima, Norihiro

原子力施設の機器・配管系構造を部品の集積による構造体ととらえ、部品単位のデータを組み立てることで全体を解析する手段として、組立構造解析手法を提案した。本手法を有限要素解析に適用し、原子力機構の有する並列分散計算機環境AEGIS上に試作システムを構築した。大洗研究開発センター高温工学試験研究炉部の協力の下、実プラントデータによる基礎的な検証を実施し、その解の妥当性を確認した。

We regarded component and piping structures of nuclear plants as a structure body by the accumulation of the part, and proposed an assembly structure analysis method as means to analyze the entire by assembling the data of the part unit. We applied this technique to finite element analysis and built a trial simulation system on parallel and distributed computer environment AEGIS in JAEA. Under the cooperation with department of HTTR, Oarai Research and Development Center, we carried out fundamental inspections by using some real plant data and confirmed the validity of the solution.

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