Numerical evaluation of spatial time-varying magnetisation of ferritic tubes excited with a C-core magnet

Abstract: The study concerns ferritic steel tubes of varying thickness magnetised with a C-core magnet. Modelling of the internal time- and space-field distribution is carried out. A finite element (FE) time-transient solution is applied, taking into account the material nonlinear B(H) characteristics, eddy currents and a saw-tooth form of the driving voltage. [Copyright &y& Elsevier]