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- W4387483790 abstract "Abstract After more than 20 years of research, the superconducting maglev has advanced to the engineering research stage. In engineering applications, multi-seeded superconducting bulks have been widely used in high-temperature superconducting (HTS) maglev systems, but there remains a deficiency in terms of the theoretical model description of multi-seeded superconducting bulks. In this paper, the fully coupled, partially coupled, and uncoupled models of the multi-seeded superconductor are presented to simulate HTS multi-seeded bulk. Then, the levitation performance and trapped field of three kinds of HTS bulks were experimentally tested, revealing a saturation levitation performance on the PMG. Therefore, the levitation force and trapped field of HTS bulks with different critical current density are further studied by 3-D simulation. Taking the 90% and 95% of the maximum levitation force as the benchmarks, the corresponding critical current density of HTS bulks are respectively 4.6×108 A/m2 and 6.1×108 A/m2. Further, a mapping coupled boundary method was adopted to automatic optimize the PMG to increase the levitation force above the PMG. After optimization, the levitation force under a unit of the permanent magnet is increased by 19%, while the maximum levitation force above multi-period Halbach PMG is increased by 9.23%. This study provides a general multi-seeded superconducting bulk simulation model and levitation force optimization method, which can serve as a reference for selecting suitable superconducting bulk." @default.
- W4387483790 created "2023-10-11" @default.
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- W4387483790 date "2023-10-10" @default.
- W4387483790 modified "2023-10-16" @default.
- W4387483790 title "Investigation of saturation levitation force and optimization of permanent magnet guideway based on multi-seeded superconducting bulks model" @default.
- W4387483790 doi "https://doi.org/10.1088/1361-6668/ad01e8" @default.
- W4387483790 hasPublicationYear "2023" @default.
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