caa a22 4500 445366885 CHVBK 20180317142933.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10909-010-0271-7 doi (NATIONALLICENCE)springer-10.1007/s10909-010-0271-7 Decay Characteristics of Levitation Force of YBCO Bulk Exposed to AC Magnetic Field above NdFeB Guideway [Elektronische Daten] [Minxian Liu, Yiyun Lu, Suyu Wang, Guangtong Ma] The superconducting maglev vehicle is one of the most promising applications of HTS bulks. In such a system, the nonuniformity of the magnetic field along the movement direction above the NdFeB guideway is inevitable due to the assembly error and inhomogeneity of the material property of the NdFeB magnet. So it is required to study the characteristics of levitation force of the bulks affected by the non-uniform applied magnetic fields along the moving direction. In this paper, we will study the characteristics of the levitation force relaxation between the HTS bulk and the NdFeB guideway by an experiment in which AC external magnetic field generated by an electromagnet is used to simulate the time-varying external magnetic field caused by the inhomogeneity of the guideway. From the experimental results, it has found that the levitation force is decreasing with the application of the AC external magnetic field, and the decay increasing with the amplitude of the applied magnetic field and is almost independent of the frequency. Springer Science+Business Media, LLC, 2010 HTS bulk nationallicence AC magnetic field nationallicence Levitation force relaxation nationallicence NdFeB guideway nationallicence Maglev vehicle system nationallicence Liu Minxian School of Computer Science and Technology, Southwest University of Science and Technology, 621000, Mianyang, Sichuan, P.R. China aut Lu Yiyun Department of Electrical Engineering and Automation, Luoyang Institute of Science and Technology, 471023, Luoyang, Henan, P.R. China aut Wang Suyu Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Chengdu, Sichuan, P.R. China aut Ma Guangtong Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Chengdu, Sichuan, P.R. China aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 163/1-2(2011-04-01), 78-85 0022-2291 163:1-2<78 2011 163 10909 https://doi.org/10.1007/s10909-010-0271-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-010-0271-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Minxian School of Computer Science and Technology, Southwest University of Science and Technology, 621000, Mianyang, Sichuan, P.R. China aut NATIONALLICENCE 700 1- Lu Yiyun Department of Electrical Engineering and Automation, Luoyang Institute of Science and Technology, 471023, Luoyang, Henan, P.R. China aut NATIONALLICENCE 700 1- Wang Suyu Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Chengdu, Sichuan, P.R. China aut NATIONALLICENCE 700 1- Ma Guangtong Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Chengdu, Sichuan, P.R. China aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 163/1-2(2011-04-01), 78-85 0022-2291 163:1-2<78 2011 163 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer