导线
电磁线圈
材料科学
导电体
电磁场
磁铁
联轴节(管道)
变形(气象学)
超导电性
超导磁体
穿透深度
磁场
电磁屏蔽
机械工程
复合材料
物理
凝聚态物理
光学
量子力学
工程类
作者
Liuyuan Yu,Mengdie Niu,Huadong Yong,Youhe Zhou
标识
DOI:10.1088/1361-6668/acf68c
摘要
Abstract The second-generation high-temperature superconducting (HTS) coated conductor has been recognized as one of the most promising materialsfor high field magnets due to its superior electromagnetic and mechanical performances. HTS racetrack coils wound with the coated conductors are an extensively used configuration in engineering applications, such as HTS machines and high-speed maglevs. In this paper, in order to analyze the electromagnetic and mechanical behaviors of HTS racetrack coils, a 3D coupled electromagnetic-mechanical model is used to consider the effect of coil deformation and the strain dependence of critical current. The effectiveness of the coupled model is validated by comparing the numerical results with experimental data in the literature. A numerical simulation of a 3D HTS racetrack coil subjected to an external electromagnetic field is carried out using coupled and uncoupled models. The results indicate that the structure deformation can reduce the penetration depth of the screening current, and the hoop stress and strain are mainly concentrated on the circular part of the racetrack coil. Afterwards, the influences of various parameters on the electromagnetic and mechanical responses of the HTS racetrack coil are also investigated.
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