真空管道高温超导侧挂悬浮旋转运动系统改进

侧挂式磁悬浮回转系统拥有两根具有单磁场峰值的永磁轨道。在环形真空管道中,该系统的磁悬浮车可以在6 mm悬浮间隙下达到80 km/h的运行速度。在不大幅改变整体结构的条件下,探讨了一种增大系统运行速度的途径。通过将2个平行的永磁轨道合并成1个具有三磁场峰值的单轨,将显著增强系统的悬浮力,从而有望提高系统的运行速度。然而车体质量的增加将抵消悬浮力增加带来的效应。综合评估二者的影响,结果表明,相比较于具有单磁峰的双轨,具有三磁场峰值的单轨能让系统获得更高的运行速度。并且,对于三磁峰单轨系统,其最大运行速度随超导块数量的增加而增加。相比较于单峰磁轨而言,当超导块列数为17时,三峰磁轨系统的运行速度可以增大8.2%。

Improvement of the Side-Suspended High-Temperature Superconductor Maglev Rotating Systemin an evacuated tube

A well-established side-suspended maglev rotating system possesses two permanent magnet guidways (PMGs) with unimodal magnetic field for every one of them. The maglev vehicle of the system can reach a speed over 80 Km/h at the suspending gap of 6 mm in an evacuated circular tube. A way to increase the maximum speed of the system without changing the whole structure greatly is discussed. Putting the two parallel PMGs together to form a single PMG with trimodal magnetic field will obviously increase levitation force of the system. This will be possible to increase the maximum speed of the system. However the mass of vehicle will increase at the same time to contract the effect of the increase of levitation force. Evaluating the effects of them generally indicates that the trimodal structure PMG (TMG) can support higher speed than that of the unimodal structure PMG (UMG). Otherwise, maximum speed for TMG augments with the increase of the number of bulks. When the number of columns of bulks is 17, the speed for TMG is 8.2 percent larger than that for UMG.