Authors: W Liu J S Wang Q X Lin G T Ma J Zheng S Y Wang
Publish Date: 2009/11/24
Volume: 158, Issue: 5-6, Pages: 922-933
Abstract
Lateral reversible region of the bulk highT c superconductor HTSC above the permanent magnet guideway PMG is a key parameter for the highT c superconducting HTS maglev system The lateral stability and guidance force are proportional to the width of the lateral reversible region When the lateral displacement of the bulk HTSC exceeds the reversible region the maglev system will return to a new lateral equilibrium position The method with the use of predisplacement can successfully increases the lateral reversible region of the bulk HTSC By the correct choice of the maximum lateral offset and a new starting point the instability of flux motion can be suppressed Unsuitable usage of this method will cause the intersection of guidance force and reduce the reversible region Analyses based on the magnetizing history and pinning metamorphoses well explain the experimental results Difference between this method and the preload method is also discussed in this article
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