Dynamic response characteristics of high temperature superconducting maglev systems: Comparison between Halbach-type and normal permanent magnet guideways

被引：17
|
作者：
Wang, B. [1 ]
Zheng, J. [1 ]
Che, T. [1 ]
Zheng, B. T. [1 ,2 ]
Si, S. S. [1 ,2 ]
Deng, Z. G. [1 ]
机构：
[1] Southwest Jiaotong Univ, State Key Lab Tract Power, Appl Superconduct Lab, Chengdu 610031, Peoples R China
[2] Southwest Jiaotong Univ, Sch Elect Engn, Chengdu 610031, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2015年 / 519卷
关键词：
FITS maglev; Permanent magnet guideway; Dynamic characteristics; Levitation height; VEHICLE; VIBRATION;
D O I：
10.1016/j.physc.2015.09.007
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The permanent magnet guideway (PMG) is very important for the performance of the high temperature superconducting (HTS) system in terms of electromagnetic force and operational stability. The dynamic response characteristics of a HTS maglev model levitating on two types of PMG, which are the normal PMG with iron flux concentration and Halbach-type PMG, were investigated by experiments. The dynamic signals for different field-cooling heights (FCHs) and loading/unloading processes were acquired and analyzed by a vibration analyzer and laser displacement sensors. The resonant frequency, stiffness and levitation height of the model were discussed. It was found that the maglev model on the Halbach-type PMG has higher resonant frequency and higher vertical stiffness compared with the normal PMG. However, the low lateral stiffness of the model On the Halbach-type PMG indicates poor lateral stability. Besides, the Halbach-type PMG has better loading capacity than the normal PMG. These results are helpful to design a suitable PMG for the HTS system in practical applications. (C) 2015 Elsevier B.V. All rights reserved.
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页码：147 / 152
页数：6
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