o:1426 Numerički pristupi u određivanju raspodele magnetnog polja i sile levitacije kod stalnih magneta Numerical methods for permanent magnet's magnetic field distribution and levitation force calculation : doctoral dissertation sr Permanent magnets are increasingly being used as a result of the wider adoption of electrical devices and gadgets. There is a constant need for their optimization and size reduction, leading to new mathematical methods for their field calculation. The quality of electrical devices that contain permanent magnets is dependent on the magnetic material they are made of, their magnetization, and their size. Many different methods for permanent magnet field calculation are available, aiming towards the simplest and fastest analysis of magnetic structures in relation to different parameters. In most cases, analytical methods for permanent magnet field calculation based on the distribution of magnetic charges or Ampere's microscopic currents are limited to block and cylindrical structures. In order to overcome drawbacks of analytical and numerical methods, this theisis presents two additional, semi-numerical approaches. Biobibliografija: listovi [1-7] Datum odbrane: 04.05.2015. Theoretical electrical engineering no 533687702 91552101 5556 91552100 533687702 2018-02-06T16:01:00.053Z 45 no 46 mentor Ana N. Vučković 2014 63 mentor Nebojša 1965- Raičević 2014 63 član komisije Ivan Yatchev 2014 63 član komisije Slavoljub Aleksić 2014 63 član komisije Dragan 1961- Tasić 2014 63 član komisije Zlata 1956- Cvetković 2014 [11], 196, [7] listova 225109710 http://phaidrabg.bg.ac.rs/o:1426 no yes 4 2018-02-06T16:01:00.320Z 70 Amperove struje, diskretizaciona tehnika, hibridni metod graničnih elemenata, metod konačnih elemenata, magnetna sila, magnetna opterećenja, magnetni ležaj, stalni magnet. Ampere's currents, discretization technique, hybrid boundary element method, magnetic force, magnetization charges, magnetic bearing, permanent magnet. 621.318.2:537.612(043.3) 1738 18A03 18A0310 2014