caa a22 4500 445380608 CHVBK 20180317143016.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10948-010-0829-2 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0829-2 Oscillation Characteristics of Levitation Force of YBCO Bulk Exposed to AC Magnetic Field above NdFeB Guideway [Elektronische Daten] [Minxian Liu, Yiyun Lu, Guangtong Ma, Suyu Wang] In the present High Temperature Superconducting (HTS) maglev vehicle 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. In order to investigate the influence of the nonuniformity on the levitation performance of the HTS bulk, the experiment involved an electromagnet, which is supplying AC current to simulate the nonuniformity of the external magnetic field. The levitation force of the HTS bulk is measured when applying AC current on the electromagnet coils. The results indicate that the levitation force abruptly changes and oscillates after applying AC external magnetic field. The effect of the amplitude of the AC magnetic field on the levitation force is studied; the result shows that the oscillation amplitude of the levitation force increases with the amplitude of the AC external magnetic field and is independent of the Field Cooling Height (FCH) of the bulk. Springer Science+Business Media, LLC, 2010 HTS bulk nationallicence AC magnetic field nationallicence NdFeB guideway nationallicence Maglev vehicle system nationallicence Liu Minxian School of Computer Science and Technology, Southwest University of Science and Technology, 621010, Sichuan, Mianyang, P.R. China aut Lu Yiyun Department of Electrical Engineering and Automation, Luoyang Institute of Science and Technology, 471023, Henan, Luoyang, P.R. China aut Ma Guangtong Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Sichuan, Chengdu, P.R. China aut Wang Suyu Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Sichuan, Chengdu, P.R. China aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/4(2011-05-01), 1339-1344 1557-1939 24:4<1339 2011 24 10948 https://doi.org/10.1007/s10948-010-0829-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0829-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Minxian School of Computer Science and Technology, Southwest University of Science and Technology, 621010, Sichuan, Mianyang, P.R. China aut NATIONALLICENCE 700 1- Lu Yiyun Department of Electrical Engineering and Automation, Luoyang Institute of Science and Technology, 471023, Henan, Luoyang, P.R. China aut NATIONALLICENCE 700 1- Ma Guangtong Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Sichuan, Chengdu, P.R. China aut NATIONALLICENCE 700 1- Wang Suyu Applied Superconductivity Laboratory, Southwest Jiaotong University, 610031, Sichuan, Chengdu, P.R. China aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/4(2011-05-01), 1339-1344 1557-1939 24:4<1339 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer