超导NbTi电缆热补偿回路在弯曲和循环运行期间的机械应变研究

Investigation of Mechanical Strains in Thermal Compensation Loop of Superconducting NbTi Cable during Bending and Cyclic Operation.

作者信息

Iluk Artur

机构信息

Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Łukasiewicza 7/9, 50-371 Wrocław, Poland.

出版信息

Materials (Basel). 2021 Feb 26;14(5):1097. doi: 10.3390/ma14051097.

DOI:10.3390/ma14051097

PMID:33652897

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7956784/

Abstract

In the paper, the thermal compensation loops on a composite, superconducting NbTi cable were investigated. This type of cable is used in the superconducting, fast ramping magnets of the SIS100 synchrotron, part of the Facility for Antiproton and Ion Research (FAIR) under construction in Darmstadt, Germany. The influence of space restrictions and electromagnetic cross-talk on the design of the thermal compensation loop was discussed. Plastic deformation of cable components during bending was analyzed by numerical simulations and experiments. A three-dimensional numerical model of the cable was prepared with individual superconducting wires in contact with a central cooling pipe. The bending of a straight cable into a compensation loop shape was simulated, followed by cyclic operation of the cable during thermal cycles. The maximum strains in the superconducting strands and cooling tube were analyzed and discussed.

摘要

在该论文中，对一种复合超导铌钛电缆上的热补偿回路进行了研究。这种类型的电缆用于德国达姆施塔特正在建设的反质子与离子研究设施（FAIR）的SIS100同步加速器的超导快速 ramp 磁铁中。讨论了空间限制和电磁串扰对热补偿回路设计的影响。通过数值模拟和实验分析了电缆组件在弯曲过程中的塑性变形。制备了电缆的三维数值模型，其中单个超导线与中央冷却管接触。模拟了将直电缆弯曲成补偿回路形状的过程，随后在热循环期间对电缆进行循环操作。分析并讨论了超导股线和冷却管中的最大应变。