AC loss from Roebel cables with high-temperature superconducting strands are comparatively less, and they possess large current carrying capacity since they have a transposed structure. However, the strands should be strong enough to withstand various types of external loads during their operation. The present work simulates the performance of the Roebel strand against an external tensile load using 3-D finite element analysis, and the importance of geometrical parameters on the mechanical stability of Roebel cables is investigated. Results were then compared with another work where the analyses were performed on a monolithic Roebel strand. We concluded that the typical twisting of the strands is an important parameter that cannot be ignored when optimizing a Roebel cable. Hence, the stress induced in a Roebel strand against an external load depends not only on the geometrical parameters but also on the typical twisting of the strand.

中文翻译：

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几何参数对 Roebel 电缆机械稳定性的重要性

采用高温超导绞线的罗贝尔电缆的交流损耗相对较小，并且由于具有转置结构，因此具有较大的载流能力。然而，股线应该足够坚固以在其操作期间承受各种类型的外部载荷。目前的工作使用 3-D 有限元分析模拟 Roebel 钢绞线抵抗外部拉伸载荷的性能，并研究了几何参数对 Roebel 电缆机械稳定性的重要性。然后将结果与在整体 Roebel 链上进行分析的另一项工作进行比较。我们得出的结论是，在优化 Roebel 电缆时，股线的典型扭曲是一个不可忽视的重要参数。因此，