一种无液氦超导磁体在运输状态下的结构稳定性分析

Stability analysis of a conduction cooled superconducting magnet structure in transportation state

就无液氦超导磁体在高速公路运输条件下的需要进行了结构稳定性分析:超导磁体主要由4 K线圈、40 K冷屏及300 K室温腔体等部分组成,为验证其在运输过程中的结构稳定性,进行了数值计算和振动特性实验研究。在相同条件下,数值计算结果与实验数据进行了比较,结果显示数值计算得到4 K与300 K之间的位置变化与实验测量获得的数据符合较好;对数据结果进行分析得到,说明基于现有悬挂结构的无液氦超导磁体在高速公路运输过程中安全可靠。

The stability analysis of a liquid helium-free superconducting magnet structure under highway transportation conditions was conducted.The uperconducting magnets are mainly composed of 4 K coils,40 K cold shield and 300 K room temperature outer cylinders.In order to verify their stability during transportation,the numerical calculations and experimental studies of vibration characteristics were carried out.Under the same conditions,the numerical calculation results are compared with the experimental data.The 4 K and 300 K position changes obtained by the numerical calculations are in good agreement with the experimental measurement data.The analysis and comparison results are based on the existing suspension structure of a liquid helium-free superconducting magnet.Magnet is safe and reliable under highway transportation.