Experimenting with a superconducting levitation train
Experimenting with a superconducting levitation train
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超导悬浮列车实验
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Koblischka
中科院分区：
文献类型：
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作者：
S. Miryala;M. Koblischka
介绍了一个高温超导列车模型的结构和运行情况.列车由熔化处理的GdBa 2 Cu 3 O x（Gd-123）超导材料悬浮在磁性轨道上。椭圆形轨道以布置在铁板上的S-N-S或PM 3 N配置构造。列车车身由玻璃钢板构成，形成一个容器，以保持液氮温度。超导体在磁道上被场冷却，这由于熔融加工的超导体的强磁通钉扎而提供了大的悬浮稳定性。该装置能够测试超导列车的稳定性，速度和安全性等参数，用于列车和磁道之间的各种间隙（范围在1 mm到15 mm之间）。实验结果表明，由于施加在轨道上的摩擦力，具有1至2 mm间隙的列车不能正常运行。有10或15 mm间隙的列车在轨道上运行不稳定。我们的研究结果证实，5 mm的间隙是运行列车的最佳距离，也显示出在轨道上快速运行的稳定性。研究结果表明，超导列车的稳定性取决于轨道与列车之间的差距，这也是真实的磁悬浮列车的一个重要参数。
The construction and operation of a prototype high- T c superconducting train model is presented. The train is levitated by a melt-processed GdBa 2 Cu 3 O x (Gd-123) superconducting material over a magnetic rail (track). The oval shaped track is constructed in S-N-S or PM3N configuration arranged on an iron plate. The train bodies are constructed with FRP sheets forming a vessel to maintain the temperature of liquid nitrogen. The superconductors are field-cooled on the magnetic track, which provides a large stability of the levitation due to strong flux pinning of the melt-processed superconductors. The setup enables to test parameters like stability, speed, and safety, of the superconducting train for various gaps (ranging between 1 mm to 15 mm) between the train and the magnetic track. The experimental results indicate that trains with 1 to 2 mm gaps cannot run properly due to the friction applied to the track. The trains with 10 or 15 mm gaps do not run stable on the track. Our results confirm that a gap of 5 mm is the optimum distance to run the train showing also stability to run fast on the track. The present results clearly demonstrate that the stability of the superconducting trains depends on the gap between the rail and train, which is an important parameter also for the real Maglev trains.