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Analyses of divertor high heat-flux components on thermal and electromagnetic loads

M. Araki, K. Kitamura, K. Urata, S. Suzuki1998年Fusion Engineering and DesignIF 1.7出版社

AbstractIn the International Thermonuclear Experimental Reactor (ITER), the divertor high heat-flux components are subjected not to only severe heat and particle loads, but also to large electromagnetic loads during reactor operation. A great deal of R&D has been carried out throughout the world with regard to the design of robust high heat-flux components. Based on R&D results, small and intermediate size mock-ups constructed from various armor tile materials have been successfully developed with respect to a thermomechanical point of view. However, little analysis has been carried out with regard to the elastic stresses induced with in the high heat-flux components via the electromagnetic loads during a plasma disruption. Furthermore, past research has only considered thermomechanical and electromagnetic loadings separately and uncoupled. Therefore, a systematic analysis of the combined effects of thermomechanical and electromagnetic loadings has been performed, with the analytical results assessed by ASME section 3 evaluation code.

日本語訳

国際熱核融合実験炉(ITER)において、ダイバータ高熱流束コンポーネントは、運転中に厳しい熱・粒子負荷だけでなく、大きな電磁力負荷にもさらされる。堅牢な高熱流束コンポーネントの設計に関して、世界中で多くの研究開発が実施されてきた。研究開発の結果に基づき、様々なアーマータイル材料から作製された小型および中型モックアップが、熱力学的観点から成功裏に開発されている。しかしながら、プラズマディスラプション中の電磁力負荷によって高熱流束コンポーネント内に誘起される弾性応力に関しては、ほとんど解析が行われていない。さらに、過去の研究では熱機械的負荷と電磁力負荷を別々に、かつ非連成でしか考慮していなかった。そこで、熱機械的負荷と電磁力負荷の複合効果に関する系統的な解析が実施され、その解析結果はASME Section 3評価コードによって評価された。

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