Lift and drag forces for the attractive electromagnetic suspension systems
Lift and drag forces for the attractive electromagnetic suspension systems
复制标题
有吸引力的电磁悬架系统的升力和阻力
DOI：
10.1109/tmag.1974.1058452
复制
发表时间：
1974
影响因子：
2.1
通讯作者：
L. Davis
中科院分区：
文献类型：
--
作者：
R. Borcherts;L. Davis
已经对小型磁体进行了实验，以确定轨道涡流对有吸引力的电磁悬架系统行为的影响。已对速度高达 100 m/s 的固定升力的电流和阻力的速度依赖性进行了测量。已经开发出基于磁极磁化的磁体模型。傅立叶技术已用于计算作为速度和电流函数的升力和阻力。轨道磁导率的场依赖性已经通过使用轨道的多层模型的自洽程序以适当的方式被解释。对小型磁体进行了与实验的比较，并预测了全尺寸磁体的行为。
Experiments on small-scale magnets have been performed to determine the effects of track eddy currents on the behavior of the attractive electromagnetic suspension system. Measurements of the velocity dependence of the current and the drag force for fixed lift force have been made for velocities up to 100 m/s. A model of the magnet based upon the magnetization of the poles has been developed. Fourier techniques have been used to calculate the lift and drag forces as a function of speed and current. The field dependence of the track permeability has been accounted for in an appropriate manner by a self-consistent procedure using a multi-layer model of the track. Comparison to experiment has been made for the small magnets, and the behavior of full-scale magnets is predicted.