Research of the Cuts Effect on Electromagnetic Characteristics in a Conductive Cylindrical Shell as a Structural Element of an Electrical Machine

A study is made of cuts effect on electromagnetic process in conductive circular cylindrical shells of finite length as a structural elements of an electrical machines. This paper presents an approach to calculation of eddy currents and integral characteristics taking into account cross cuts in different running regimes (pulsed-field, traveling variable magnetic field or shell rotation in direct currents magnetic field of extraneous sources). It is analysed dependencies of eddy currents distribution, Joule's losses, braking (rotation) torque, with variation of shell parameters, frequency supply, and sliding motion based on numerical experiments.