eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-06-21 12 Spl.Edn.2 449 457 10.13005/bbra/2222 12992 article Vasiliy Germanovich Chirkin 1 Vladimir Ivanovich Goncharov 1 Sergey Vladimirovich Shirinskii 1 Lev Yurievich Lezhnev 2 Dmitry Anatolyevich Petrichenko 2 National Research University “Moscow Power Engineering Institute” 111250, Russia, Moscow, Krasnokazarmennayastr, 14. Moscow State University of Mechanical Engineering (MAMI) 107023, Russia, Moscow, B. Semenovskaya str., 38. The known analytical solution of the field problem considering magnetic field of a thin linear conductor placed above smooth ferromagnetic core have been used to analyze the normal component of the flux density distribution created by a system of permanent magnets on the surface of a core. Ampere model of a permanent magnet initially have been used with the assumption of lack of other ferromagnetic objects. Then a number of numerical experiments have been carried out to take into account ferromagnetic elements in the vicinity of the permanent magnets and graphical dependences of the flux density and magnet sizing were obtained. https://www.biotech-asia.org/vol12_nospl_edn2/permanent-magnet-system-field-distribution-on-the-surface-of-smooth-fer-romagnetic-core/ Electric machine; Permanent magnet; Analytical expression; Finite-element modeling; Magnet sizing