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首页> 外文期刊>Plasma and Fusion Research >Ic Analysis of Nb3Sn Strand Cable-In-Conduit Conductor under the Electromagnetic Force by the Structural Mechanics
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Ic Analysis of Nb3Sn Strand Cable-In-Conduit Conductor under the Electromagnetic Force by the Structural Mechanics

机译：电磁力作用下Nb3Sn绞线导管内导体的结构力学分析

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The Cable-In-Conduit Conductor (CICC) is the most promising one for large scale fusion magnets. Now it has been adopted as conductors for ITER magnets. Although the conductor has good mechanical strength against large electromagnetic force, the performance is not so good because the Nb3Sn strands are fragile and the critical current density is sensitive to strain. Because the conductor is composed of hundreds or thousands of strands which are twisted and become tangled, the strands experience extra-bending during energizing magnets. It seems so difficult to analyze plastic deformation of the strands of whole conductor. Our approach to calculate it is unique in terms of using structural mechanics called “Beam Model” based on the measured strand traces inside the conduit. The calculated traces provide us the local curvatures of strands under electromagnetic force. This leads to the evaluate the conductor performance such as I c degradation.
机译：导管内导体（CICC）是用于大型聚变磁体的最有前途的导体。现在，它已被用作ITER磁体的导体。尽管导体在较大的电磁力下具有良好的机械强度，但由于Nb 3 Sn链易碎且临界电流密度对应变敏感，因此性能并不理想。由于导体是由成百上千的绞合而成的绞合线组成，因此绞合线在磁铁通电时会发生弯曲。似乎很难分析整个导体的股线的塑性变形。根据管道内测得的股线轨迹，我们使用称为“梁模型”的结构力学来计算它的方法是独特的。计算出的迹线为我们提供了电磁力作用下钢绞线的局部曲率。这导致评估导体性能，例如I c 降级。

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