Numerical simulation of the electro-thermo-mechanical behaviors of a high-temperature superconducting cable
Numerical simulation of the electro-thermo-mechanical behaviors of a high-temperature superconducting cable
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高温超导电缆电热机械行为的数值模拟
DOI：
10.1016/j.compstruct.2018.03.057
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发表时间：
2018-05
影响因子：
6.3
通讯作者：
Gao Yuanwen
中科院分区：
文献类型：
--
作者：
Ta Wurui;Gao Yuanwen
多层复合超导带材的性能取决于操作条件，例如所施加的场、温度和应力。因此，准确分析高温超导（HTS）电缆的电磁-热力耦合行为，对于理解不同物理场之间的相互作用机理，优化HTS电缆结构具有重要意义。本文建立了一种用于高温超导电缆电-热-机械分析的三维有限元模型。计算了单层多层复合超导带材和整个超导电缆结构的临界电流。得到了磁场、电流密度、温度和应力的分布。据发现，具有较高的临界电流的磁带的选择增强电缆的传输性能。电流密度不均匀地分布在堆中。从堆叠的底部到顶部，电流密度首先增加，然后减小，与磁场成反比。用液氦冷却提高了电缆的运输能力。超导带材的温度略高于铝芯的温度，但铝芯中的应力大于超导带材中的应力。结果表明，选择临界电流密度高的超导带材，并按照与电磁场分布相一致的方式进行叠层，可以提高电缆的输运能力。该模型还解释了不同物理场之间相互作用的机制。该方法不仅可以阐明复杂结构高温超导电缆的多物理场耦合行为，而且可以为新型高温超导电缆结构的设计提供理论参考。
The performance of a multi-layer composite superconducting tape depends on operating conditions, such as the applied field, temperature and stress. Therefore, accurate analysis of the electromagnetic-thermo-mechanical coupling behaviors of the high-temperature superconducting (HTS) cable is important to understanding the mechanism of interaction among different physical fields and the success of optimizing the design of the HTS cable structure. This paper develops a three-dimensional finite element model based on the twisted-stack slotted-core HTS cable structure for electro-thermo-mechanical analysis. Critical currents of a single multi-layer composite superconducting tape and the whole HTS cable structure are calculated. Profiles of the magnetic field, current density, temperature and stress are also obtained. It is found that the selection of tapes having higher critical current enhances the transport performance of the cable. Current densities are nonuniformly distributed in the stack. From the bottom to the top of the stack, the current density first increases and then decreases, in inverse relation to the magnetic field. Cooling with liquid helium improves the cable transport capacity. The temperature of the superconducting tapes is slightly higher than that of the aluminum core, but the stress in the aluminum core is greater than that in the superconducting tapes. The results imply that the transport capacity of the cable can be improved by selecting superconducting tapes with high critical current density and arranging them in stacks in a manner consistent with the electromagnetic field distribution. The model also explains the mechanism of interaction between different physical fields. It is a useful tool that clarifies the multiphysics coupling behaviors of an HTS cable with complex structure, and provides a theoretical reference for the design of novel HTS cable structures.
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影响因子：
1.8
作者：
M. Casali;M. Breschi;P. Ribani
通讯作者：
M. Casali;M. Breschi;P. Ribani
DOI：
10.1007/978-1-4613-4277-9_4
发表时间：
1976
期刊：
--
影响因子：
--
作者：
T. Dawson
通讯作者：
T. Dawson
影响因子：
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作者：
L. Muzzi;G. D. Marzi;A. D. Zenobio;A. D. Corte
通讯作者：
L. Muzzi;G. D. Marzi;A. D. Zenobio;A. D. Corte
影响因子：
1.8
作者：
A. Di Zenobio;A. della Corte;L. Muzzi;G. Polli;L. Reccia;S. Turtu;F. Crisanti;A. Cucchiaro;A. Pizzuto;R. Villari
通讯作者：
A. Di Zenobio;A. della Corte;L. Muzzi;G. Polli;L. Reccia;S. Turtu;F. Crisanti;A. Cucchiaro;A. Pizzuto;R. Villari
DOI：
10.1016/b978-0-12-816945-2.00010-9
发表时间：
2021
期刊：
Mathematical Modeling of Swimming Soft Microrobots
影响因子：
--
作者：
I. Khalil;A. Klingner;S. Misra
通讯作者：
I. Khalil;A. Klingner;S. Misra