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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tsuda, M. Tsuchiya, K. Harada, N. Hamajima, T. |
| Copyright Year | 2002 |
| Abstract | Stiffness is one of the important parameters for HTS bulk applications to motor, magnetic bearing in flywheel system and magnetic levitating transporter and so on. We prepared several types of disk-shaped permanent magnets with different diameters for realizing different magnetic field distribution. Since the lateral stiffness depends on not only magnetic field distribution but also the magnitude of magnetic field, we measured the restoring force against lateral disturbance under the condition of the same magnetic flux density on the top surface of HTS bulk. The maximum restoring force of HTS bulk against single permanent magnet increased with the diameter of the permanent magnet and the displacement at the maximum restoring force was almost equal to the diameter of the permanent magnet. We also performed analytical evaluation of restoring force by calculating stored energy within HTS bulk in each bulk location to investigate the relationship between restoring force and magnetic field distribution. Experimental and analytical results implies that slope of magnetic field around field-cooling location is one of the important parameter for achieving large lateral stiffness. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 948 |
| Ending Page | 951 |
| Page Count | 4 |
| File Size | 180870 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 14 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic fields High temperature superconductors Permanent magnets Magnetic field measurement Magnetic levitation Force measurement Magnetic analysis Permanent magnet motors Flywheels Magnetic flux |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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