There are mixed magnetic field system of axial and radial in hybrid stepping motors, and the magnetic field in the gap (or teeth layer)is distributed uneven along the axial direction.
The finite element method is used to calculate five-phase hybrid stepping motor's tooth layer magnetic field parameters.
用有限元方法,计算出五相混合式步进电动机齿层部分磁场参数;
3
The perfect matched layer (PML) technique is used in ADI-FDTD calculation for the first time. The expressions for the exponential time-stepping algorithm in PML are derived.